School of Medicine


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  • Michael S. Kapiloff, MD, PhD

    Michael S. Kapiloff, MD, PhD

    Reinhard Family Professor, Professor (Research) of Ophthalmology and, by courtesy, of Medicine (Cardiovascular Medicine)

    Current Research and Scholarly InterestsDr. Michael S. Kapiloff is a faculty member in the Departments of Ophthalmology and Medicine (Cardiovascular Medicine) and a member of the Stanford Cardiovascular Institute. Although Dr. Kapiloff was at one time a Board-Certified General Pediatrician, he is currently involved in full-time basic science and translational research. His laboratory studies the basic molecular mechanisms underlying the response of the retinal ganglion cell and cardiac myocyte to disease. The longstanding interest of his laboratory is the role in intracellular signal transduction of multimolecular complexes organized by scaffold proteins. Recently, his lab has also been involved in the translation of these concepts into new therapies, including the development of new AAV gene therapy biologics for the prevention and treatment of heart failure and for neuroprotection in the eye.

    URL to NCBI listing of all published works:
    http://www.ncbi.nlm.nih.gov/sites/myncbi/michael.kapiloff.1/bibliography/40252285/public/?sort=date&direction=descending

    For more information see Dr. Kapiloff's lab website: http://med.stanford.edu/kapilofflab.html

  • Katherine Kaplan

    Katherine Kaplan

    Clinical Associate Professor, Psychiatry and Behavioral Sciences

    Current Research and Scholarly InterestsDr. Kaplan's research interests span four (often overlapping) domains: (1) pathophysiologic aspects of insomnia and hypersomnia in mood disorders, including mechanisms, correlates, and sequelae of these sleep disturbances; (2) behavioral interventions for sleep disturbances in adults and adolescents; (3) circadian and psychosocial factors impacting sleep in adolescence; and (4) machine learning approaches to big data.

  • Michael J. Kaplan, MD

    Michael J. Kaplan, MD

    Professor of Otolaryngology - Head & Neck Surgery at the Stanford University Medical Center, Emeritus

    Current Research and Scholarly Interests1) New therapeutic approaches for head and neck cancer, including immune stimulation possibilities (IRX-2 protocol), integration of biological modifiers, and, eventually, genetic approaches.
    2) Head and neck cancer stem cells: identification, characterization, control--in conjunction with the Irv Weissman and Michael Clarke labs in the Stem Cell Institute
    3) Development of innovative surgical methods at the anterior cranial base

  • Robert Kaplan

    Robert Kaplan

    Adjunct Professor, Medicine - Primary Care and Population Health

    Current Research and Scholarly InterestsHealth services research
    Studies on the cost and quality of health care
    Health outcome measurement
    Social determinants of health

  • Daniel Kapp

    Daniel Kapp

    Professor of Radiation Oncology, Emeritus

    Current Research and Scholarly InterestsGynecologic malignancies; Rectal/and cancer; Breast Cancer; Hodgkin's disease; Hyperthermia; intraoperative radiation therapy; High dose rate radiation therapy; Predictive assays; Patterns of tumor spread; Health care finance.

  • Shanthi Kappagoda

    Shanthi Kappagoda

    Clinical Associate Professor, Medicine - Infectious Diseases

    Current Research and Scholarly InterestsCompleted a Masters degree in Health Services Research in 2012. Research focused on using network models to develop a clinical research agenda for neglected tropical diseases.

  • Cynthia Kapphahn

    Cynthia Kapphahn

    Clinical Professor, Pediatrics - Adolescent Medicine

    Current Research and Scholarly InterestsAccess to health care services for adolescents.
    Confidentiality.
    Mental Health Financing.
    Eating disorders.

  • Mandeep Kapur, MD

    Mandeep Kapur, MD

    Adjunct Clinical Assistant Professor, Psychiatry and Behavioral Sciences - Child & Adolescent Psychiatry and Child Development

    BioDr. Kapur is a double board-certified psychiatrist. After completing her General Psychiatry residency at Tulane University, she moved back to California for her Child & Adolescent Psychiatry fellowship at Stanford University. With this specialized training, Dr. Kapur has expertise in ADHD, anxiety, depression, behavioral challenges, parent-child relational problems, among other mental health problems.

    Dr. Kapur provides compassionate, evidence-based care for children, teens, young adults, and their families. She is committed to providing personalized treatment plans designed to meet each patient's unique needs and goals using a holistic, patient-centered approach to ensure the best possible outcomes.

  • Spyros Karadimas, MD, PhD

    Spyros Karadimas, MD, PhD

    Assistant Professor of Neurosurgery

    BioDr. Spyridon Karadimas is a board-certified, fellowship-trained cerebrovascular neurosurgeon and physician-scientist with Stanford Health Care. He is also an assistant professor in the Department of Neurosurgery at Stanford University School of Medicine.

    Dr. Karadimas offers advanced, personalized treatment for complex vascular disorders of the brain, neck, and spine in both adults and children. His expertise spans brain aneurysms, arteriovenous malformations, cavernous malformations, arteriovenous fistulas, Moyamoya disease, stroke, and carotid artery disease. Dr. Karadimas is a rare combination of surgeon, scientist, and innovator dedicated to advancing patient care and shaping the future of cerebrovascular neurosurgery.

    Dr. Karadimas directs a basic and translational research program focused on the neural circuits of motor control and stroke recovery. His laboratory integrates systems neuroscience, in vivo imaging, electrophysiology, and brain-computer interface development to uncover the principles of neuroplasticity, or how the brain adapts to change. This knowledge allows him to create new ways to help people move again after a brain injury.

    Dr. Karadimas has published his research as first author in peer-reviewed journals such as Nature, Nature Neuroscience and Science Translational Medicine. His work has received editorial highlight at Nature Reviews Neuroscience. He has presented to his peers at international, national, and regional meetings, including those of the American Academy of Neurological Surgery, American Association of Neurological Surgeons (AANS), European Association of Neurosurgical Societies, and World Federation of Skull Base Societies.

    Dr. Karadimas is a fellow of the Royal College of Surgeons of Canada and American Association of Neurological Surgeons as well as member of the Congress of Neurological Surgeons, and the North American Skull Base Society.

  • Cansu Karakas

    Cansu Karakas

    Assistant Professor of Pathology (Clinical Pathology)

    BioDr. Cansu Karakas is an Assistant Professor, with subspecialty expertise in Breast Pathology. Her academic career spans notable institutions such as MD Anderson Cancer Center and (2010–2017) and NYU (2017-2018). She is passionate about research with a focus on HER2-driven breast cancers, artificial intelligence (AI) applications in breast cancer and identifying resistance mechanisms to guide novel, personalized therapeutic strategies in breast cancer.

  • Ioannis Karakikes

    Ioannis Karakikes

    Associate Professor (Research) of Cardiothoracic Surgery

    Current Research and Scholarly InterestsThe Karakikes Lab aims to uncover fundamental new insights into the molecular mechanisms and functional consequences of pathogenic mutations associated with familial cardiovascular diseases.

  • Amer Karam

    Amer Karam

    Clinical Professor, Obstetrics & Gynecology - Gynecologic Oncology

    BioDr. Amer Karam is a board-certified, fellowship-trained gynecologic surgeon and clinical professor in the Stanford Medicine Department of Obstetrics & Gynecology, Division of Gynecology Oncology. He specializes in gynecologic oncology, hospice and palliative care, hereditary gynecologic cancers, laparoscopic and robotic gynecologic surgery, and obstetrics and gynecology.

    Dr. Karam attended medical school at the American University in Beirut. He completed his internship and residency at the Johns Hopkins Hospital in Baltimore, Maryland, before completing a fellowship in gynecologic oncology at the University of California Los Angeles and a fellowship in breast surgery at the Memorial Sloan-Kettering Cancer Center. Dr. Karam has a vested interest in minimally invasive and robotic surgery with a practice centered on this approach for the treatment of patients with gynecologic malignancy and complicated pelvic surgery. He is currently director of Robotic Surgery and Outreach in the Division of Gynecologic Oncology.

  • Abraar Karan, MD MS MPH DTM&H

    Abraar Karan, MD MS MPH DTM&H

    Instructor, Medicine - Infectious Diseases
    Affiliate, Medicine - Med/Infectious Diseases

    BioI am an Instructor in the Division of Infectious Diseases and Geographic Medicine with affiliations in the Center for Innovation in Global Health, the King Center on Global Development, and the Woods Institute for the Environment. I worked on the Covid19 outbreak for the Massachusetts Department of Public Health in 2020, and the Monkeypox outbreak for the Los Angeles County Department of Public Health in 2022-23. I also served on the WHO-commissioned Independent Panel on Pandemic Preparedness and Response's research team investigating early global spread of Covid19, and helped with policy-writing for the Biden-Harris campaign on reducing Covid19 in schools. I am currently the Principal Investigator of the following studies: a cluster-randomized controlled trial investigating whether air filtration and ventilation can reduce spread of Covid19 in low-income homes in the Bay Area (https://clinicaltrials.gov/ct2/show/NCT05777720); utilizing multiplex assays for detecting exposures to filoviruses in Western Kenya; and assessing H5N1 seroprevalence in high-risk farmworker communities in California. I am also a co-investigator on a study focused on rtPCR based surveillance of H5N1 in humans in Central California.

    I completed my internal medicine residency at the Brigham and Women's Hospital/Harvard Medical School in the Global Health Equity program, and have been working in global health since 2008. I co-edited the book, "Protecting the Health of the Poor" (December 2015, Bloomsbury Publishing, https://www.bloomsbury.com/us/protecting-the-health-of-the-poor-9781783605521/); and co-founded Longsleeve insect repellent, winner of the 2018 Harvard Business School New Venture Competition and finalist in the 2019 Harvard President's Challenge. Media/press coverage has included NBC, ABC, BBC, PBS, CBS, CNN, MSNBC, Fox News, Washington Post, New York Times, SF Chronicle, Bloomberg, Boston Globe, ProPublica, WSJ, TIME, Politico, CBC News, Democracy Now, NPR, ESPN, The Atlantic, The Hill, Business Insider, Vice, Mother Jones, Vox, Forbes, Slate, STAT News, MTV News, Mother Jones, Science Friday, TMZ.

    For a full list of publications, please see "Publications" tab. For full list of press/media interviews, please see "Media" link.

    Teaching Experience:
    Teaching Assistant-- Epi 231, Infectious Disease Epidemiology (Winter 2024)
    Teaching Assistant-- Epi 237, Practical Approaches to Global Health Research (Autumn 2024)
    Teaching Assistant-- Epi 231, Infectious Disease Epidemiology (Winter 2025)

  • Gloria M. Kardong MD, DLFAPA, DABPN

    Gloria M. Kardong MD, DLFAPA, DABPN

    Adjunct Clinical Associate Professor, Psychiatry and Behavioral Sciences

    BioI attended Stanford University as an undergraduate, then returned to Stanford for my Psychiatry residency and Chief Residency. I then joined the Faculty in the Department of Psychiatry and Behavioral Sciences. I am an adjunct Clinical Associate Professor. I teach and supervise the residents in the program.
    I am also on the Faculty of the Stanford Forensic Psychiatry Fellowship Program, where I teach and supervise post-graduate Fellows.
    I have served an Examiner for the Medical Board of California and do Forensic Psychiatry/Expert Witness work for attorneys as part of my private practice for the past 15 years.

    I have been in private practice for 35 years, including 15 years of virtual care. I am licensed in 10 states and can provide telepsychiatry services in all of those states.

    Among my specialties are trauma; abuse; PTSD; women's health care-related issues, including pregnacy and post-partum issues, PMS, menopause and hormonal issues across the life span.

    I also enjoy treating student health-related concerns and helping impaired professionals.

    I treat all psychiatric problems for men, women, adolescents and couples. This includes anxiety, panic, bipolar disorder, ADHD, relationship issues and more.

  • Mardi Karin, MD, FACS

    Mardi Karin, MD, FACS

    Clinical Professor, Surgery - General Surgery

    BioDr. Mardi R. Karin is a board certified surgeon with over 20 years of experience, specializing in breast surgery and is Clinical Professor of Surgery in Stanford University Department of Surgery, Section of Surgical Oncology. She was appointed the first Clinical Director of Breast Cancer Care at Stanford Cancer Center South Bay after the new cancer center opened and served in this role from 2016-2019. Dr. Karin specializes in the surgical treatment of breast diseases and cancer. In addition to providing outstanding care, her focus and leadership in breast cancer care includes improving coordinated care for breast cancer treatment both within the Cancer Center and the community.

    Dr. Karin has extensive experience in breast surgery, including complex breast cancer skin and nipple sparing procedures in coordination with the plastic surgeon for immediate breast reconstruction and optimal appearance with excellent outcomes. She collaborates closely with Plastic and Reconstructive Surgery to provide the best options to patients, including Oncoplastics for optimal aesthetic appearance with breast conservation treatment, in addition to mastectomy with nipple sparing and immediate breast reconstruction. Her clinical research is focused on improving patient outcomes in different aspects of breast surgery, including nipple sparing mastectomy by utilizing MRI blood flow information to preserve important blood flow to reduce complications. She also is involved with advancing surgical techniques to decrease lymphedema rates after axillary lymph node dissection, with lymphatic preservation and possible LYMPHA procedure by the Plastic Reconstructive Microsurgeons. In addition, she works in close collaboration with Medical Oncology to offer the latest most advanced treatments for breast cancer.

  • Jaya Karnani, MD

    Jaya Karnani, MD

    Adjunct Clinical Assistant Professor, Medicine - Primary Care and Population Health

    BioDr. Jaya Karnani practices family medicine in Bay Valley Medical Group’s Hayward office. She attended medical school at Kasturba Medical College in India and completed her residency at the Fort Wayne Medical Education Program in Indiana.
    Dr. Karnani is board-certified by the American Board of Family Medicine. She speaks English and Hindi. Dr. Karnani joined Bay Valley Medical Group in 2009. In her spare time, she enjoys cooking, traveling, reading and watching movies.

  • Krishna Govinda Kary (they/them)

    Krishna Govinda Kary (they/them)

    Clinical Assistant Professor, Psychiatry and Behavioral Sciences

    BioDr. Krishna Kary (they/them) is a licensed psychologist who specializes in working with adolescents, adults, and couples within the LGBTQ+ community to address concerns related to depression, anxiety, sexuality, identity and interpersonal challenges. Dr. Kary received their PhD in Counseling Psychology from the Counseling, Clinical, and School Psychology program at the University of California, Santa Barbara. They received their MA and BS from Santa Clara University in Counseling and Psychology, respectively. Their clinical internship was completed at the University of California, Los Angeles Counseling and Psychological Services (CAPS) and their postdoctoral Gender and Sexual Identities fellowship at Stanford University CAPS. Dr. Kary serves patients through the THRIVE clinic at the Stanford School of Medicine and is emotion-focused, collaborative, and culturally-sensitive in their approach to psychotherapy. In addition to their interest in clinical care, they also enjoy supervision and training, teaching, and consultation related to gender inclusivity practices.

  • Siva Kasinathan

    Siva Kasinathan

    Instructor, Pediatrics - Rheumatology

    BioSiva Kasinathan, MD, PhD is a physician-scientist and Instructor of Pediatric Rheumatology at the Stanford University School of Medicine and Lucile Packard Children's Hospital. In addition to caring for children and young adults with rheumatic diseases in his clinical practice, Siva conducts research to advance the understanding of mechanisms of autoimmunity and autoinflammation.

    Siva holds an MD and PhD in Molecular and Cell Biology from the University of Washington, where he developed high-throughput methods for epigenome profiling and contributed new insights in chromatin biology and gene regulation. During his clinical training in pediatrics and rheumatology at Stanford, he pioneered approaches for single-molecule analysis of genetic variation, DNA methylation, and chromatin structure.

    Siva's current research bridges genomics and immunology, focusing on developing and applying sensitive technologies to unravel the genetic and molecular underpinnings of lupus, arthritis, and other disorders of immune regulation. As a physician-scientist, Siva is committed to translating fundamental discoveries into precision therapies and biomarkers to improve outcomes for patients with immune-mediated diseases.

  • Patpilai Kasinpila

    Patpilai Kasinpila

    Clinical Assistant Professor, Cardiothoracic Surgery

    BioChief, Division of Cardiothoracic Surgery – Santa Clara Valley Medical Center
    Clinical Assistant Professor – Stanford University School of Medicine

    Dr. Kasinpila is a board-certified cardiothoracic surgeon. She completed her integrated residency in cardiothoracic surgery at Stanford. She currently serves as Division Chief of Cardiothoracic Surgery at Santa Clara Valley Medical Center and as a Clinical Assistant Professor at Stanford. Her practice spans the full spectrum of adult cardiothoracic surgery, with particular interests in complex valve surgery, aortic surgery, and surgical care for underserved populations.

    She is committed to providing collaborative, evidence-based care to improve cardiovascular outcomes in the community.

  • Karthikeshwar Kasirajan (Kasi)

    Karthikeshwar Kasirajan (Kasi)

    Clinical Professor, Surgery - Vascular Surgery

    BioDr. Kasirajan is a board-certified, fellowship-trained vascular surgeon. Also known as Dr. Kasi, he is a clinical professor of vascular surgery at Stanford University School of Medicine.

    Dr. Kasirajan preserves limbs, facilitates access to dialysis, and helps his patients manage conditions such as aneurysms, varicose veins, thoracic outlet syndrome, and deep vein thrombosis. Many of his limb preservation patients smoke, have diabetes, or are experiencing renal failure. Dr. Kasirajan’s experience also centers around the treatment of aneurysms and prevention of strokes.

    In all cases, his goal is to provide either noninvasive or minimally invasive management whenever possible. He performs open surgery only when it is the best option. Dr. Kasirajan treats many patients with stents and stent grafts, which can shorten hospital stays and recovery times.

    Dr. Kasirajan (Kasi) receives referrals of patients from primary care physicians, nephrologists, podiatrists, cardiologists, woundcare specialists, diabetologists, neurologists, and other specialists. He welcomes referrals as early as possible, ideally before patients become symptomatic. A strong proponent of doing early screening for peripheral artery disease, Dr. Kasirajan advocates for the use of the ankle-brachial index (ABI) in routine physical examinations. When providers detect an imbalance between leg and arm blood pressure, Dr. Kasirajan can help create customized strategies to address the cause before the problem worsens.

    In addition to offering excellent vascular care to the community, Dr. Kasirajan joined Stanford to continue pursuing his research interests. He has conducted research into advances in minimally invasive procedures for stroke prevention and for aneurysm management. His research has also focused on how to improve surgery outcomes to help patients suffering from peripheral vascular disease. Dr. Kasirajan has been the investigator in over 40 multicenter studies involving new stent graphs, thrombectomy catheters, and other advances in endovascular technology.

    Dr. Kasirajan has made more than 100 presentations worldwide on minimally invasive vascular surgery techniques and preventive care in the vascular patient. He has spoken at multiple conferences including the Society for Vascular Surgery, Peripheral Vascular Society, and the South Asian American Vascular Society. He has earned numerous honors for his academic achievements, including the prestigious Alpha Omega Alpha award for medical student and resident education.

    As the author of more than 120 journal articles, Dr. Kasirajan’s work has appeared in the Journal of Vascular Surgery, Endovascular Today, Pharmacogenomics Journal, Catheter Cardiovascular Intervention, and many other publications. He also has authored 20 book chapters in textbooks including Medical Management of the Surgical Patient 5th Edition, Advances in Phlebology and Venus Surgery Volume 1, Current Therapy in Vascular Surgery, Mastery of Surgery, and many more.

    Dr. Kasirajan has served on the editorial boards of the Journal of Endovascular Therapy, Annals of Vascular Surgery, International Journal of Angiology, and other publications.

  • Maya M. Kasowski

    Maya M. Kasowski

    Assistant Professor of Pathology, of Medicine (Pulmonary, Allergy and Critical Care Medicine) and, by courtesy, of Genetics

    BioI am a clinical pathologist and assistant professor in the Departments of Medicine, Pathology, and Genetics (by courtesy) at Stanford. I completed my MD-PhD training at Yale University and my residency training and a post-doctoral fellowship in the Department of Genetics at Stanford University. My experiences as a clinical pathologist and genome scientist have made me passionate about applying cutting-edge technologies to primary patient specimens in order to characterize disease pathologies at the molecular level. The core focus of my lab is to study the mechanisms by which genetic variants influence the risk of disease through effects on intermediate molecular phenotypes.

  • Laura B. Kasper, PhD

    Laura B. Kasper, PhD

    Adjunct Clinical Assistant Professor, Psychiatry and Behavioral Sciences

    BioI am psychologist and have been practicing psychotherapy for over 18 years. I have experience working with a diverse group of clients with respect to presenting concerns, gender, sexual orientation, and race/ethnicity.

    Regardless of their background, the majority of my clients are highly intelligent and accomplished people who are interested in taking their personal and professional relationships to the next level, starting with themselves. My therapeutic approach blends my first-hand experience of the high-performing professional workplace with buddhist psychology and tools to offer support that is unrelentingly compassionate, direct, and powerful.

    I have particular research and clinical expertise in authenticity with one's self and in relationships, interpersonal communication, and issues of sexual orientation, gender, and sexuality. My services include individual, couples, and group psychotherapy. I also do video counseling sessions with individuals and couples in CA, DC and VA, the places where I am licensed.

    I earned my master’s and doctoral degrees from the University of Maryland’s Counseling Psychology program. I completed my internship and post-doctoral training, and was a Staff Psychologist at the The George Washington University Counseling Center for several years before starting my private practice. I am currently in the Interpersonal Dynamics Facilitator Training Program at Stanford University in the Graduate School of Business to become a small group facilitator for their popular elective, Interpersonal Dynamics.

    I have been practicing Vipassana meditation for over fifteen years. I’ve spent eighty-five days on silent meditation retreats in that time, and have a mindfulness orientation to my work.

    I am a member of the American Group Psychotherapy Association and the Northern California Group Psychotherapy Society, and the Northern California Society for Psychoanalytic Psychology. I am licensed and insured in California (PSY28532), Washington D.C. (PSY1000362) and Virginia (PSY0810004715).

  • Michele Kastelein

    Michele Kastelein

    Clinical Assistant Professor, Medicine - Vaden Health Center

    Current Research and Scholarly InterestsAt Stanford University School of Medicine, one of our major goals is to translate research insights into practical advances that enhance and prolong life. We foster a two-way transfer of knowledge between research laboratories and patient-care settings. Our faculty, staff, postdoctoral scholars and students engage in interdisciplinary efforts to turn this knowledge into therapies that treat or prevent disease.

  • Tamiko Robin Katsumoto MD, DipABLM

    Tamiko Robin Katsumoto MD, DipABLM

    Clinical Associate Professor, Medicine - Immunology & Rheumatology

    BioTamiko Katsumoto, MD, DipABLM is a Clinical Associate Professor in the Division of Immunology and Rheumatology at Stanford University and is board certified in lifestyle medicine. She earned her MD from the University of California, San Francisco. She completed her internal medicine residency and rheumatology fellowship at UCSF, including a postdoc in immunology. Deeply committed to human and planetary health, she is passionate about educating her patients, her colleagues, and the general public on the merits of sustainable whole food plant-centered diets as a strategy to both improve individual health and mitigate climate change and environmental degradation. She is fascinated by the impact of diet and lifestyle on inflammation, autoimmunity, and cancer. She directs the Rheumatology Oncology Clinic and serves as a co-director of the Stanford Immune Related Toxicity Working Group, a multidisciplinary group which aims to improve the quality of care of cancer patients on immune checkpoint inhibitors. She is involved in several clinical trials at Stanford and has spent time at Genentech, where she led several global clinical trials in immunology. She co-chaired the American College of Rheumatology Climate Change Task Force. She is working closely with the Stanford Doerr School of Sustainability and serves on the steering committee for the Center for Human and Planetary Health where she co-leads the Food Systems, Health and Environment Working Group.

  • Daniel Katz

    Daniel Katz

    Assistant Professor of Medicine (Computational Medicine)

    BioDaniel Katz is an Assistant Professor of Medicine in the Stanford Center for Biomedical Informatics Research (BMIR) and the Cardiovascular Medicine Divisions. He practices as an Advanced Heart Failure and Transplant Cardiologist. He completed internal medicine residency at Massachusetts General Hospital, general cardiology training at Beth Israel Deaconess Medical Center, and then joined Stanford in 2021 for his advanced heart failure training. His research focuses on identifying the various pathophysiologic patterns and mechanisms that lead to the heterogeneous syndrome of heart failure. His efforts leverage high dimensional data in many forms including clinical phenotypes, plasma proteomics, metabolomics, and genetics. He is presently engaged in analysis of multi-omic data from the Molecular Transducers of Physical Activity Consortium (MoTrPAC) and the NHLBI Trans-Omics for Precision Medicine (TOPMed) Program. His clinical interests include advanced heart failure, transplant cardiology, and mechanical circulatory support.

  • Laurence Katznelson, MD

    Laurence Katznelson, MD

    Professor of Neurosurgery, Emeritus

    Current Research and Scholarly InterestsDr. Katznelson is an internationally known neuroendocrinologist and clinical researcher, with research expertise in the diagnosis and management of hypopituitarism, the effects of hormones on neurocognitive function, and the development of therapeutics for acromegaly and Cushing’s syndrome, and neuroendocrine tumors. Dr. Katznelson is the medical director of the multidisciplinary Stanford Pituitary Center, a program geared for patient management, clinical research and patient education

  • David Kauvar

    David Kauvar

    Clinical Professor, Surgery - Vascular Surgery

    BioDavid Kauvar, MD, MPH is an academic vascular surgeon who received his undergraduate medical education on active duty in the US Army at the Uniformed Services University of the Health Sciences in Bethesda, Maryland. He completed his residency in general surgery at Brooke Army Medical Center in San Antonio, Texas, a surgical research fellowship at the United States Army Institute for Surgical Research, and a clinical fellowship at the University of Utah. His 24-year career as a wartime and vascular surgeon culminated with his retirement in 2022. During his tenure in the military, Dr. Kauvar was a respected surgical educator and became an academic leader in the fields of military and vascular trauma. He earned a Master of Public Health degree from the University of North Texas and was inducted into the Order of Military Medical Merit for his contributions to military medicine.

    Dr. Kauvar has served as a general surgery residency associate program director for research and as a residency program director, chair of an institutional review board, and chief of a vascular surgery service. He commanded a combat surgical unit in Afghanistan and led two multimillion-dollar Department of Defense combat casualty care research labs. He has authored over eighty peer-reviewed publications and numerous textbook chapters, has presented research at dozens of national and international surgical meetings and has been invited to speak internationally about vascular trauma as an acknowledged expert in the field.

    Dr. Kauvar is now Clinical Professor of Surgery in the Division of Vascular Surgery at Stanford University School of Medicine with his primary clinical responsibilities at Santa Clara Valley Medical Center in San Jose, California. He is married and has one son.

  • Makoto Kawai

    Makoto Kawai

    Clinical Professor, Psychiatry and Behavioral Sciences - Sleep Medicine

    BioI am a physician scientist in the field of sleep medicine in aging and brain function. Using combined polysomnogram and novel neuroimaging technology, I aim to identify potential sleep biomarkers to investigate the mechanism of progression from normal aging to Mild Cognitive Impairment (MCI) or dementia. I also investigate the impact of sleep on cognitive/affective function or behavior abnormality in various neurodevelopmental and neurodegenerative disorders.

  • Masataka Kawana

    Masataka Kawana

    Assistant Professor of Medicine (Cardiovascular Medicine)

    BioDr. Kawana is the Medical Director of the Ambulatory Heart Failure and Cardiomyopathy Service in the Advanced Heart Failure program. He completed his internal medicine, cardiovascular medicine, and heart failure training at Stanford. He also completed a postdoctoral research fellowship under Dr. James Spudich in the Department of Biochemistry. He manages advanced heart failure patients in the clinic, CCU/heart failure service, and post-heart transplant/MCS service. His research interests are in the fundamental mechanisms of inherited cardiomyopathies, and he studies the effect of gene mutations on cardiac sarcomere function using cutting-edge biochemical and biophysical approaches, which would lead to the development of novel pharmacotherapy that directly modulates cardiac muscle protein. He is involved in multiple clinical trials for pharmacotherapy and novel device studies in heart failure and inherited cardiomyopathy.

  • Mark A. Kay, M.D., Ph.D.

    Mark A. Kay, M.D., Ph.D.

    Dennis Farrey Family Professor of Pediatrics, and Professor of Genetics

    Current Research and Scholarly InterestsMark A. Kay, M.D., Ph.D. Director of the Program in Human Gene Therapy and Professor in the Departments of Pediatrics and Genetics. Respected worldwide for his work in gene therapy for hemophilia, Dr. Kay and his laboratory focus on establishing the scientific principles and developing the technologies needed for achieving persistent and therapeutic levels of gene expression in vivo. The major disease models are hemophilia, hepatitis C, and hepatitis B viral infections.

  • Debra Lee Kaysen

    Debra Lee Kaysen

    Professor of Psychiatry and Behavioral Sciences (Public Mental Health and Population Sciences)

    Current Research and Scholarly InterestsMuch of my current research focus is on the development of testing of accessible, scaleable, and effective treatments for trauma-related disorders and related comorbidities (e.g. substance use disorders, HIV, mood disorders). This work has focused on addressing trauma-related disorders especially in underserved populations and settings. This includes research in rural communities, with Native American communities, and with sexual minorities. My research has had a strong impact on building an evidence base on adaptations of psychotherapies for PTSD and substance use disorders for diverse populations both within and outside the United States. Our findings demonstrate that complex cognitive behavioral psychotherapies like Cognitive Processing Therapy can be culturally adapted and delivered in challenging settings (conflict settings, high poverty environments) with significant and lasting change in PTSD, depression, and functioning. This has led to work adapting CPT for diverse populations within the United States (rural Native Americans, urban Latinos) and outside of it (Iraq, DRC). Other research has focused on treatment for PTSD/SUD. My research has also found support for the use of brief telehealth interventions to build treatment engagement and to reduce drinking among trauma-exposed populations. In addition, my work has been critical in testing the feasibility of novel trauma-focused interventions for use by those with PTSD and SUD, thus paving the road for more rigorous research studies.

    Current PI'ed research studies include: 1) developing and evaluating a brief motivational interviewing intervention designed to increase treatment-seeking among military personnel with untreated PTSD; a two-arm randomized comparative effectiveness trial to evaluate prevention of HIV/STI sexual risk behavior by addressing PTSD through Narrative Exposure Therapy or substance use through Motivational Interviewing among Native American men and women with PTSD; and 3) a comparison of outcomes among patients randomized to initially receive pharmacotherapy or Written Exposure Therapy delivered in primary care as well as comparing outcomes among patients randomized to treatment sequences (i.e., switching and augmenting) for patients who do not respond to the initial treatment.

  • Electron Kebebew, MD, FACS

    Electron Kebebew, MD, FACS

    Harry A. Oberhelman, Jr. and Mark L. Welton Professor

    Current Research and Scholarly InterestsDr. Kebebew’s translational and clinical investigations have three main scientific goals: 1) to develop effective therapies for fatal, rare and neglected endocrine cancers, 2) to identify new methods, strategies and technologies for improving the diagnosis and treatment of endocrine neoplasms and the prognostication of endocrine cancers, and 3) to develop methods for precision treatment of endocrine tumors.

  • Ryan Keenan, OD

    Ryan Keenan, OD

    Clinical Assistant Professor, Ophthalmology

    BioDr. Keenan is a board-certified optometrist with the Stanford Health Care Byers Eye Institute and a clinical assistant professor in the Department of Ophthalmology.

    Dr. Keenan diagnoses and treats a wide range of ocular and visual issues, such as vision problems related to stroke, intracranial lesions and tumors, and other neurological conditions. His clinical experience involves recognizing and caring for complex neuro-ophthalmic diseases. These include complications from diseases of the nervous system that adversely affect vision.

    Dr. Keenan’s research interests include understanding genetic variations related to progressive weakness of the eye muscles. These conditions range from drooping eyelids to increasing limitations in eye movement.

    Dr. Keenan has presented research and clinical findings to his peers at national and regional meetings, including the annual meetings of the American Academy of Optometry and the North American Neuro-Ophthalmology Society.

  • Kevin R Keet

    Kevin R Keet

    Clinical Assistant Professor, Medicine

    BioDr. Keet is an award-winning medical educator and hospitalist at the Palo Alto VA and Stanford University Hospitals, where he serves as Associate Program Director for the Internal Medicine residency. His clinical practice is grounded in a commitment to empathetic, patient-centered care, and he brings that same orientation to his work with trainees, helping residents develop the clinical reasoning and humanism that define excellent internists. His scholarly interests sit at the intersection of medical education and artificial intelligence, with a particular focus on how physicians can be prepared to use AI tools thoughtfully while preserving the cognitive skills and human judgment that patients depend on.

  • Corey Keller, MD, PhD

    Corey Keller, MD, PhD

    Associate Professor of Psychiatry and Behavioral Sciences (Public Mental Health and Population Sciences)

    Current Research and Scholarly InterestsThe goal of my lab is to understand the fundamental principles of human brain plasticity and build trans-diagnostic real-time monitoring platforms for personalized neurotherapeutics.

    We use an array of neuroscience methods to better understand the basic principles of how to create change in brain circuits. We use this knowledge to develop more effective treatment strategies for depression and other psychiatric disorders.

  • Jennifer Keller

    Jennifer Keller

    Clinical Professor, Psychiatry and Behavioral Sciences

    Current Research and Scholarly Interestsinterpersonal violence and abuse prevention; empowerment of women; cognitive and affective information processing in depression; clinical, biological, and neuropsychological aspects of depression; South Asian mental health

  • Kevin Kelley

    Kevin Kelley

    Assistant Professor of Psychiatry and Behavioral Sciences (General Psychiatry and Psychology)

    BioAs a neuroscientist and psychiatrist, I am motivated by how little we understand about the pathophysiology of psychiatric disorders and hope that further knowledge will help to alleviate the ongoing distress of many of our patients. My research program leverages computational genomics, human brain cellular models, and molecular neuroscience techniques to understand the cellular and molecular mechanisms of human brain development and how dysfunction in these processes lead to psychiatric disorders.

  • Michael Kelly, MD, MSCI

    Michael Kelly, MD, MSCI

    Professor of Orthopaedic Surgery

    BioDr. Michael Kelly is a board-certified, fellowship-trained orthopaedic spine surgeon treating adults and children with Stanford Health Care. He is also a Professor in the Department of Orthopaedic Surgery, Division of Spine Surgery at Stanford University School of Medicine.

    Dr. Kelly is an expert in treating complex spinal deformities in children and adults, performing advanced surgeries and revision procedures to improve pain, movement, and posture. He specializes in managing scoliosis, spondylolisthesis, kyphosis, and other challenging back and neck problems. He has completed multiple fellowships in treating complex deformities, establishing his expertise in performing three-column osteotomy for spinal realignment. Dr. Kelly provides personalized care using the latest, evidence-based approaches to help his patients achieve a better quality of life.

    With a master’s degree in clinical research, Dr. Kelly’s clinical care is driven by his extensive research on spinal deformities and innovations in orthopaedic medicine. His research focuses on improving safety, outcomes, and recovery for spinal surgeries, particularly for spinal deformities. Dr. Kelly’s work has helped define normal spinal alignment, improve surgical techniques, and better understand the long-term impacts of spinal deformity surgeries.

    As a leader in orthopaedic surgery, Dr. Kelly has published hundreds of articles in peer-reviewed journals, including The New England Journal of Medicine, JAMA Surgery, The Lancet Neurology, GeroScience, and The Journal of Bone and Joint Surgery. He is currently Deputy Editor at Spine, the premier spine journal. He has shared his expertise at renowned international conferences, including annual meetings of the Scoliosis Research Society and the Cervical Spine Research Society, where he has won multiple research awards. His presentations often discuss complex spinal deformities, spinal surgery techniques, and strategies to optimize patient care.

    Dr. Kelly is a member of many professional organizations where he has also held leadership positions, including the Scoliosis Research Society, AO Spine, and the Cervical Spine Research Society. He is one of the few surgeons in the International Spine Study Group, dedicated to adult spinal deformity care, and the Harms Study Group, which focuses on pediatric spinal deformities.

  • Timothy Kelly, MD, MPH

    Timothy Kelly, MD, MPH

    Clinical Instructor, Anesthesiology, Perioperative and Pain Medicine

    BioDr. Timothy Kelly, MD, MPH, is a fellowship-trained pain medicine specialist and board-certified emergency medicine doctor at Stanford Health Care. He is a clinical instructor in the Department of Anesthesiology, Perioperative and Pain Medicine at Stanford University School of Medicine.

    Dr. Kelly provides pain management care and treats pain conditions such as chronic neck, back, knee, and shoulder pain.

    Dr. Kelly’s research focuses on the intersection of pain management and emergency medicine. He has studied treatments like peripheral nerve stimulation (using small electrical devices to reduce chronic pain) and targeted drug delivery. Dr. Kelly is interested in bridging the gap between emergency medicine and pain medicine.

    Dr. Kelly’s research has been published in numerous peer-reviewed journals, including Annals of Internal Medicine, Clinical Toxicology, American Journal of Emergency Medicine, and Academic Emergency Medicine Education and Training, among others.

    Dr. Kelly is a member of the American Society of Regional Anesthesia and Pain Medicine (ASRA), North American Neuromodulation Society (NANS), and American Academy of Pain Medicine (AAPM).

  • John L Kendall

    John L Kendall

    Professor of Emergency Medicine (Adult Clinical/Academic)

    BioJohn L. Kendall, MD, FACEP is Professor of Emergency Medicine at Stanford University School of Medicine, where he serves as Director of Academic Affairs, Director of Ultrasound, and Co-Director of Systemwide Point-of-Care Ultrasound (POCUS) for Stanford Health Care. A national leader in emergency and critical care ultrasound, he has published extensively on ultrasound education, quality assurance, and clinical applications, authoring more than 75 peer-reviewed publications and multiple textbooks. He is a Director of both the American Board of Emergency Medicine and the American Board of Medical Specialties, and has chaired numerous national committees shaping ultrasound certification and standards. His contributions to education, research, and leadership have been recognized with multiple national awards, including the Distinguished Service Award and Best Research in Medical Education Award from the Society for Academic Emergency Medicine and the Lifetime Service Award from the American College of Emergency Physicians.

  • Joan Kendig

    Joan Kendig

    Professor of Biology in the Department of Anesthesia, Emeritus

    Current Research and Scholarly InterestsMy laboratory tries to find out how pharmacologic agents used in the practice of anesthesia (general anesthetic and analgesic agents) lead to therapeutically desireable endpoints including unconsciousness, immobility and absence of pain. The old idea that general anesthetics are uniformly non-specific "membrane stabilizers" is giving way to a new realization that these agents exert specific actions on particular ion channels and intracellular signalling systems.

  • Vanessa Kennedy

    Vanessa Kennedy

    Assistant Professor of Medicine (Blood and Marrow Transplantation and Cellular Therapy)

    BioDr. Kennedy is a board-certified hematologist and medical oncologist who specializes in the treatment of myeloid malignancies, including acute myeloid leukemia (AML), myelodysplastic syndrome (MDS), and myelofibrosis (MF). She is an Assistant Professor in the Department of Medicine, Division of Blood and Marrow Transplantation & Cellular Therapy, at Stanford University School of Medicine.

    Dr. Kennedy's research focuses on the use of clinical informatics and bioinformatics in understanding cancer biology and improving patient outcomes. She is also actively involved in interventional clinical trials. Her work has been supported by grant funding from the American Society of Clinical Oncology, the American Society of Hematology, and the Chan-Zuckerberg Foundation.

  • John Kerner

    John Kerner

    Professor of Pediatrics (Gastroenterology), Emeritus

    Current Research and Scholarly InterestsI am interested in pediatric nutritional support and have experience evaluating new enteral and parenteral products especially for the neonate (I studied a "new" I.V. fat product for Abbott; I participated in a multicenter trial of a formula with fish oil in it for neonates with Mead Johnson and a multicenter trial of a new human milk fortifier for Wyeth).

  • Andrew Kesselman

    Andrew Kesselman

    Clinical Associate Professor, Radiology

    Current Research and Scholarly InterestsCurrently studying the role of interventional therapies in caval filtration, venous thromboembolism and primary and metastatic hepatic malignancies.

  • Kian Keyashian

    Kian Keyashian

    Clinical Associate Professor, Medicine - Gastroenterology & Hepatology

    BioThe management of inflammatory bowel disease continues to evolve, with the introduction of biologic and small molecule therapies and new goals of treatment, with an emphasis on healing the bowel. My career goal since my graduation from IBD fellowship in 2012 has been to improve the outcomes and quality of life of patients with inflammatory bowel disease. In line with these goals, my research has focused investigating new noninvasive diagnostic test, finding factors early in the disease course that might predict a more aggressive disease course and need for different therapies, and investigating new promising effective medications with less side effects.

  • Khizer Khaderi MD, MPH

    Khizer Khaderi MD, MPH

    Clinical Associate Professor, Ophthalmology

    BioDr. Khizer Khaderi is a Clinical Associate Professor at the Byers Eye Institute at Stanford University. Khaderi is the Founding Director of the Stanford Human Perception Laboratory (HPL) and the Stanford Vision Performance Center (VPC). He also serves as faculty at the Stanford Institute for Human-Centered AI and the Wu Tsai Human Performance Alliance (HPA)

    Khaderi is a renowned Neuro-Ophthalmic surgeon, technologist and futurist. Dr. Khaderi is pioneering the field of Symbiotics, defined as the convergence of human science + computer science. Khaderi developed the discipline of Symbiotics following initial interest from CS students interested in his research at the Stanford Human Perception Lab. Symbiotics involves a deep understanding in the principles of human systems and applying these principles computationally, to design and develop the next generation of human-centric technologies, where machines perceive, understand and respond to optimize the human experience. Dr. Khaderi envisions the application of Symbiotic principles as the key to unlocking ambient intelligence.

    Khaderi has extensive domain expertise in artificial intelligence (AI), spatial computing (virtual reality (VR), augmented reality (AR), mixed reality (MxR)), wearables, gaming, IoT, Web3, applied neuroscience, human factors, and human-machine interfaces/interaction. His research interests include developing personalized human intelligent systems based on the human brain and sensory systems, developing technologies to optimize human performance, and combining biological and computational principles to expand our capabilities in research, clinical practice, and everyday life. Dr. Khaderi's approach to advance research interests and develop practical applications for everyday use is building technology, companies and collaborative partnerships across academia and industry.

    Dr. Khaderi’s experience across industry sectors include consumer electronics, gaming, retail, life science, sports/Esports health care, Pharma, e-commerce, to name a few. He has developed novel technologies in these areas, and generated multiple invention patents. Selected as a “40 under 40”, he contributed to President Obama’s Council of Advisors on Science and Technology regarding vision technology and the aging population. He also advises multiple companies, venture firms and organizations including Apple, Google, Meta, Microsoft, Riot Games, Intel, Activision, Unity, Epic Games, NBA, Glaukos, the Global Esports Federation, the World Health Organization, the International Olympic Committee, the International Telecommunication Union, and the World Bank.

  • Ali Raza Khaki, MD

    Ali Raza Khaki, MD

    Clinical Assistant Professor, Medicine - Oncology

    BioDr. Khaki is a medical oncologist and clinical assistant professor at Stanford University School of Medicine.

    In his clinical practice, he treats patients with all forms of genitourinary cancer, including kidney, bladder, prostate, and testicular. He also regularly attends on the inpatient oncology service at Stanford Hospital.
    With each patient, he is devoted to providing exceptional, humanistic care and has been recognized throughout his career for his humanism. As a medical student, he was named to the national Gold Humanism Honor Society and he received the Reza Gandjei Humanism Award as a medical resident at UCSF.

    His research interests include novel therapies for genitourinary cancers, with a focus on urothelial cancer outcomes. He is the site principal investigator for multiple clinical trails investigating new therapies for genitourinary cancers.

    Dr. Khaki is also active working clinically in inpatient oncology and is a Unit Based Medical Director for G1, an oncology hospital unit and is the Director of Inpatient Oncology. In this role, he oversees the inpatient oncology teams, works closely with the cancer center to develop new transitions of care pathways from inpatient to outpatient and has co-led an inpatient oncology research group to study quality improvement, care delivery and end-of-life care for patients with cancer.

    Dr. Khaki has earned honors and recognition from the American Association for Cancer Research, American Society of Clinical Oncology, Bladder Cancer Advocacy Network, Conquer Cancer Foundation, and other organizations.

    He has authored numerous articles on topics such as immunotherapy for urothelial cancer, management of cancer patients with COVID-19, and utilization of end-of-life care by cancer patients. In addition, he is an editor for HemOnc.org and theMednet, a physician-only online community where members share clinical questions and answers.

  • Christina Khan, MD, PhD

    Christina Khan, MD, PhD

    Clinical Professor, Psychiatry and Behavioral Sciences

    BioDr. Christina Khan is a pediatric and adult psychiatrist and Clinical Professor in the Department of Psychiatry and Behavioral Sciences. She specializes in the treatment of trauma, depression, anxiety, LGBTQ+ health, and physician wellness. Dr. Khan’s training includes doctoral and postdoctoral research training in community and public health, including specialized training in global health and PTSD research and treatment. Her work focuses on addressing health disparities in underserved populations and treating vulnerable and marginalized populations here in the United States and abroad.

    At Stanford, she is co-Chief of the Diversity and Cultural Mental Health Section in the Department of Psychiatry and Behavioral Sciences and founder and Director of THRIVE, Stanford's LGBTQ+ mental health clinic. She has been working with WellConnect since 2014 addressing burnout, trauma, and secondary trauma in Stanford physicians. Dr. Khan is also a Faculty Fellow at the Center for Innovation in Global Health (CIGH) and serves on the CIGH Program Leadership Committee.

    Nationally, Dr. Khan serves as Past President of the Association of Women Psychiatrists and as Councilor for the Council on Minority Mental Health and Health Disparities of the American Psychiatric Association.

  • Michelle Joanne Khan, MD, MPH, FACOG (she/her)

    Michelle Joanne Khan, MD, MPH, FACOG (she/her)

    Clinical Professor, Obstetrics & Gynecology - General

    Current Research and Scholarly InterestsDr. Khan's research focuses on prevention of HPV-related cancers of the cervix, vagina, vulva, and anus and on the impact of reproductive tract infections on pregnancy and health.

  • Saad A. Khan, MD

    Saad A. Khan, MD

    Associate Professor of Medicine (Oncology)

    BioDr. Khan is a fellowship-trained cancer specialist with board certification in oncology and hematology. He is an assistant professor in the Department of Medicine, Division of Oncology.

    Dr. Khan focuses on the treatment of head and neck cancers, advanced thyroid cancers, and neuroendocrine tumors. He recognizes the broad effects of these conditions on daily living and aims to develop personalized, comprehensive treatment plans that optimize health and quality of life.

    Dr. Khan’s research interests include therapeutic clinical trials as well as ways to reduce toxicities that some patients may experience when receiving cancer treatment. His research activities include ongoing clinical trials of targeted and immune therapy for aggressive thyroid cancer.

    He has published numerous articles on his research discoveries in peer-reviewed journals such as the JAMA Oncology, Investigational New Drugs, and others. Topics include new drug treatments for small cell lung cancer and for cancers of the head and neck, racial and gender disparities in certain types of cancer, and management of the potentially toxic effects of cancer therapies.

    Dr. Khan is a member of the NRG Head and Neck Committee. NRG brings together internationally recognized groups (the first words in their names form the acronym “NRG”) to conduct cancer clinical research and share study results. The objective is to inform clinical decision making and healthcare policy worldwide.

    Dr. Khan is a member of the ECOG Head and Neck Core and Thoracic Committees. ECOG (Eastern Cooperative Oncology Group) is part of one of the five groups of the National Cancer Institute (NCI) National Clinical Trials Network (NCTN) Program.

    He also is a member of the National Cancer Institute’s Central IRB for Early Phase Clinical Trials.

    When not providing patient care or conducting research, Dr. Khan enjoys spending time with his family, hiking, and relaxing at the beach.

  • Yousuf Khan

    Yousuf Khan

    Instructor, Molecular and Cellular Physiology

    BioI am a PhD student in Stanford Biosciences, department of Molecular and Cellular Physiology. I am broadly interested in basic molecular processes that occur in the cell and aim to delineate these mechanisms using biochemistry, molecular biology, bioinformatics and biophysics. I am also available as a consultant for bio-tech ventures.

  • Abha Khandelwal

    Abha Khandelwal

    Clinical Professor, Medicine - Cardiovascular Medicine

    Current Research and Scholarly InterestsCardiovascular disease in Pregnancy
    Valvular Heart Disease
    Cardiomyopathy
    Pericardial disease
    Heart Disease in South Asians
    Women's Cardiovascular Disease

  • Kajal Khanna

    Kajal Khanna

    Clinical Associate Professor, Emergency Medicine
    Clinical Associate Professor (By courtesy), Pediatrics

    Current Research and Scholarly InterestsGlobal pediatric emergency medicine research, educational scholarship, pediatric emergency medical care in low- and middle- income countries and rights-based approaches to health systems development

  • Nasim Sabery Khavari

    Nasim Sabery Khavari

    Clinical Associate Professor, Pediatrics - Gastroenterology

    Current Research and Scholarly InterestsPediatric Gastroenterology, Celiac Disease, Nutrition in Celiac Disease

  • Paul A. Khavari, MD, PhD

    Paul A. Khavari, MD, PhD

    Carl J. Herzog Professor of Dermatology in the School of Medicine

    Current Research and Scholarly InterestsWe work in epithelial tissue as a model system to study stem cell biology, cancer and new molecular therapeutics. Epithelia cover external and internal body surfaces and undergo constant self-renewal while responding to diverse environmental stimuli. Epithelial homeostasis precisely balances stem cell-sustained proliferation and differentiation-associated cell death, a balance which is lost in many human diseases, including cancer, 90% of which arise in epithelial tissues.

  • Sarita Khemani

    Sarita Khemani

    Clinical Associate Professor, Medicine

    Current Research and Scholarly InterestsDr. Khemani’s scholarly work focuses on physiological reserve, biological aging, and healthy longevity, with an emphasis on developing multidimensional measures to better predict resilience, recovery, and health trajectories across the lifespan.

  • Cynthia Khoo

    Cynthia Khoo

    Clinical Associate Professor, Anesthesiology, Perioperative and Pain Medicine

    BioDr. Khoo serves as the Associate Program Director of Career Development for the Stanford Anesthesia Residency and Co-Director of the Division of Global Health Equity. In her residency role, she leads the Anesthesiology Leadership Pathways at Stanford (ALPS), a comprehensive mentorship initiative spanning advocacy, research, community engagement, global health, innovation, medical education and quality improvement.

    A graduate of the University of Pennsylvania’s MD-PhD program, Dr. Khoo completed her residency and regional anesthesia fellowship at Stanford. Her global health work focuses on promoting safe, equitable perioperative care through high-tech education, including immersive reality simulations for crisis management in Tanzania and Guyana. She supports bi-directional partnerships that facilitate resident rotations and host international scholars at Stanford. Her current research focuses on enhancing clinical research quality in low-resource settings across Rwanda, Vietnam, Guyana, and Tanzania. Dr. Khoo specializes clinically in regional, orthopedic, and thoracic anesthesia.

  • Chaitan Khosla

    Chaitan Khosla

    Wells H. Rauser and Harold M. Petiprin Professor and Professor of Chemistry and, by courtesy, of Biochemistry

    Current Research and Scholarly InterestsResearch in this laboratory focuses on problems where deep insights into enzymology and metabolism can be harnessed to improve human health.

    For the past two decades, we have studied and engineered enzymatic assembly lines called polyketide synthases that catalyze the biosynthesis of structurally complex and medicinally fascinating antibiotics in bacteria. An example of such an assembly line is found in the erythromycin biosynthetic pathway. Our current focus is on understanding the structure and mechanism of this polyketide synthase. At the same time, we are developing methods to decode the vast and growing number of orphan polyketide assembly lines in the sequence databases.

    For more than a decade, we have also investigated the pathogenesis of celiac disease, an autoimmune disorder of the small intestine, with the goal of discovering therapies and related management tools for this widespread but overlooked disease. Ongoing efforts focus on understanding the pivotal role of transglutaminase 2 in triggering the inflammatory response to dietary gluten in the celiac intestine.

  • Nitasha Khullar, MD

    Nitasha Khullar, MD

    Clinical Assistant Professor, Medicine - Immunology & Rheumatology

    BioDr. Nitasha Khullar is a board-certified, fellowship-trained rheumatologist at Stanford Health Care. She is also a clinical assistant professor in the Department of Medicine, Division of Immunology and Rheumatology at Stanford University School of Medicine.

    Dr. Khullar specializes in caring for people with autoimmune and inflammatory diseases that affect the joints, muscles, and immune system. She treats conditions like lupus, rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, vasculitis, gout and other complex rheumatic disorders. She provides personalized care for each patient, focusing on early diagnosis and working closely with other medical specialists to help manage these diseases. She values shared decision-making and a patient-centric approach to her care.


    Dr. Khullar’s work has been presented at national and international conferences, including the American College of Rheumatology and the American Association of Immunology. She has authored peer-reviewed publications in journals such as Viruses, Molecular Neurobiology, Age (Dordrecht, Netherlands), and Current Treatment Options in Rheumatology.

    She is a member of the American College of Rheumatology.