School of Medicine
Showing 101-200 of 737 Results
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Mandeep Kapur, MD
Affiliate, Psychiatry and Behavioral Sciences
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
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
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.
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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.
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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
Instructor, Medicine - 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) -
Maira Karan
Postdoctoral Scholar, Psychiatry
BioMaira Karan is a postdoctoral fellow in the department of psychiatry and behavioral sciences, and a Pathyways to Neuroscience trainee through the Wu Tsai Neurosciences Institute. Her doctoral research focused on how positive human behaviors, such as empathy and prosociality, develop during the period of adolescence and how the adolescent brain and body mature in concert to support these other-oriented behaviors. Her research has utilized behavioral experiments, validated questionnaires, ecological momentary assessments, longitudinal assessments, and functional magnetic resonance imaging (fMRI). Another line of her work examines how sleep affects adolescent health and well-being with a special focus on circadian rhythms. At Stanford, she is working on merging her two lines of research to assess how sleep and circadian timing influence adolescent behaviors and health. In addition to conducting research, she has a deep passion for uplifting underrepresented individuals in(to) the fields of psychology and neuroscience, and she has a Certificate in Critical Consciousness & Anti-Oppressive Practices.
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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. -
MD Emranul Karim
Affiliate, Medicine - Med/Infectious Diseases
Visiting Postdoctoral Scholar, Medicine - Med/Infectious DiseasesBioDr. Md. Emranul Karim is a Visiting Postdoctoral Scholar in the Department of Medicine, Division of Infectious Diseases & Geographic Medicine at Stanford University, working in the laboratory of Prof. Paul Bollyky. His current research focuses on RNA therapeutics and innovative delivery strategies for infectious and immune-mediated diseases.
Before joining Stanford, Dr. Karim was a Postdoctoral Associate in the Department of Chemical Engineering at the Massachusetts Institute of Technology (MIT), where he worked with Prof. Allan S. Myerson on developing continuous manufacturing platforms for in vitro transcription (IVT) of messenger RNA. His training at MIT provided expertise in mRNA synthesis, process optimization, and scalable manufacturing.
Dr. Karim’s broader research background lies in nanoparticle-based drug delivery and translational nanomedicine. He has extensive experience in the design and characterization of lipid nanoparticles (LNPs) and hybrid nanocarriers for nucleic acid delivery, with applications in vaccines, oncology, and regenerative medicine. He earned his Ph.D. in Biomedical Sciences from Monash University, where he developed novel nanoparticle platforms for targeted drug and gene delivery to breast cancer.
His long-term vision is to bridge RNA manufacturing and next-generation delivery technologies to accelerate the clinical translation of nucleic acid–based medicines. -
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. -
James Regun Karmoker
Postdoctoral Scholar, Ophthalmology
BioDr. James Regun Karmoker started his career as a Lecturer at the University of Asia Pacific, Bangladesh, after completing his B. Pharm and MS Pharm Tech from the same university. He obtained a doctorate degree in Vision Science from the University of Oklahoma, USA, where he studied immune cell activation in the context of retinal pigment epithelium injury. Currently, he is a postdoctoral scholar in Prof. Mary Elizabeth Hartnett’s lab studying age-related macular degeneration.
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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. -
David Karpf
Adjunct Clinical Professor, Medicine - Endocrinology, Gerontology, & Metabolism
BioMy specialty within Endocrinology is Metabolic Bone Disease, including both osteoporosis and hypoparathyroidism, as well as other conditions including hyper- and hyo-calcemia, hypercalciuria, Paget's Disease, Osteogenesis Imperfecta, hypophosphatasia, and other metabolic bone diseases, as well as diabetes and thyroid diseases.
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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.
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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 several 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, Siva pioneered approaches for single-molecule analysis of genetic variation, DNA methylation, and chromatin structure, and established a longitudinal rheumatic disease cohort and biorepository.
Siva’s current research bridges genomics and immunology with a focus on developing and applying sensitive technologies to unravel the genetic and molecular underpinnings of lupus, arthritis, and other immune-mediated diseases. As a physician-scientist, Siva is committed to translating fundamental discoveries into precision therapies and biomarkers to improve outcomes for patients with rheumatic diseases. -
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)
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
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.
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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
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.
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Max Kasun
Research Professional, Psychiatry and Behavioral Sciences
BioMax Kasun works in the Roberts Ethics Lab and Kim Ethics Lab at Stanford, which use empirical methods to help anticipate, clarify and resolve ethical issues in modern biomedical research. He received his BA from the University of Wisconsin-Madison. He has interests in empirical and normative thought dedicated to increasing scientific understanding and societal appreciation of the nature and prevalence of mental disorders and well-being, as well as in moral philosophy (e.g. Kantian ethics, justice, action, ethical naturalism, and pragmatism), cognitive and affective sciences, and philosophy of mind (e.g. embodiment and personhood). He has co-authored scientific, peer-reviewed articles and other scholarly work investigating ethical issues in research (e.g. authentic voluntarism in informed consent), medical education, public health, and neuroscience. He is currently working on a project investigating ethical issues encountered in development and clinical integration of artificial intelligence, including how environmental and cognitive factors shape appraisals of AI tools, clinical judgments, trust, and health decision-making.
Max is a co-author of several chapters in APA's Study Guide to DSM-5-TR (2024) including the chapters on bipolar and related disorders and personality disorders. He has provided editorial support for the peer-reviewed journal Academic Medicine and for two works on the subject of trauma and related interventions (United Nations, Springer). Previously, he served on leadership teams for the Stanford Mental Health Technology and Innovation Hub and Neurodiversity Project. -
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 and colleagues 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 is working closely with the Stanford Doerr School of Sustainability and the Center for Human and Planetary Health where she co-leads the Food Systems, Health and Environment Working Group.
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Daniel Katz
Assistant Professor of Medicine (BMIR)
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.
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Colonel Ronit Katz (Ben-Abraham)
Affiliate, Medicine - Primary Care and Population Health
BioColonel (CA) Ronit Katz, MD is The Surgeon General for the CA Guard and a consultant to NASA-Ames Medical Unit. During the current pandemic she has played a vital leadership role in California’s response to the evolving situation and received two NASA-Ames safety awards for her role in COVID -19 prevention.
Professor Katz is Board Certified in Preventive, Occupational and Environmental Medicine, and is a Fellow of the American College of Preventive Medicine.
Dr. Katz provides her expertise in occupational and environmental medicine to the CA WRIISC team.
Colonel (Dr.) Katz attended Tel Aviv University and The Weizmann Institute of Science in Israel at age 15. She graduated Magna cum Laude from Tel Aviv University, Sackler Medical School. She completed a fellowship in cancer research at Tufts-New England Medical Center, and later served as a Faculty Member at the Harvard University School of Public Health.
She is a recipient of Lawrence Livermore National Lab's (LLNL) “Certificate of Excellence” for outstanding performance in support of the Health Services Department, received the NASA Group Achievement Award, and was selected as one of the "Top Doctors in Silicon Valley."
In 2007, Dr. Katz received The American Medical Association’s (AMA) “Excellence in Medicine and Leadership Award.”
She serves on many boards and committees for local and national professional organizations, including serving in various senior and policy leadership roles in the AMA including Chair of AMA-IMGS Governing council and Delegate to HOD, and representing Stanford University Medical center for AMA-OMSS.
In 2018, Dr. Katz was a keynote speaker at the JMA International Conference on CBRNE/Disaster Preparedness/Counterterrorism in preparation for the Tokyo 2020 Olympics. In 2019 Col. Katz was the Key note speaker for Lawrence Livermore National Lab (LLNL) and her presentation was streamed live to other DOE facilities.
Colonel Katz is a national speaker and educator for The American College of Occupational & Environmental Medicine( ACOEM) and The New England Journal of Medicine Resident 360 programs.
Colonel Katz, MD is a Clinical Professor(Aff.) at Stanford University Medical Center where she was awarded the "Excellent Teacher Award." -
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 Cushings 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
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Ankita Kaulberg
Director of Innovation & Technology, Epidemiology and Population Health
Current Role at StanfordDirector of Innovation & Technology, HEARTS Lab
Stanford School of Medicine -
Aanchal Preet Kaur
Postdoctoral Scholar, Hematology-Oncology
BioDr. Aanchal Preet Kaur is a post-doctoral fellow in the Ramakrishna lab interested in understanding the role of myeloid cells in driving immunosuppression and resistance to CAR T cell therapies in pediatric patients with diffuse midline glioma. Her work involves developing organoid models to study the interaction of myeloid cells and CAR T cells and further employ these models to validate targets identified in patient single cell sequencing data using CRISPR technology.
Dr. Aanchal Preet Kaur received her PhD in Oncology at the University of Nottingham, United Kingdom where she focused on developing dendritic cell vaccines for melanoma. In her earlier post-doctoral work at Providence Cancer Institute with Dr. Michael Gough, she developed spheroid models to study the impact of radiation therapy on immune cell-cancer cell interactions. -
Dr Mohit Kaushal MD
Adjunct Professor, Biomedical Data Science
BioDr. Mohit Kaushal is an accomplished entrepreneur, investor, and physician with a distinguished career spanning clinical medicine, academia, public policy and industry. He has served as an investor and board member for numerous public and private transformative companies, including Oak Street Health (NYSE: OSH, acquired by CVS Health, NYSE: CVS), Humedica (acquired by Optum, NYSE: UNH), RxAnte (acquired by Millennium), Change Healthcare (acquired by Emdeon), Universal American (NYSE: UAM, acquired by WellCare, NYSE: WCG), goBalto (acquired by Oracle, NYSE: ORCL), CitiusTech (acquired by Baring), Wellframe (acquired by HealthEdge), and George Clinical (acquired by Hillhouse).
During the Obama administration, Dr. Kaushal served on the White House Health IT Task Force, contributing to the implementation of the Affordable Care Act’s technology initiatives and testifying before Congress on the role of technology and payment reform in Medicare. He also established and led the first dedicated healthcare team at the Federal Communications Commission, where his work included partnering with the FDA to streamline regulation of converged telecommunications, analytics, and medical devices, ultimately resulting in the FDA’s mobile medical applications guidance. His team also restructured the Rural Healthcare Fund into the Healthcare Connect Fund, aligning its resources with broader healthcare technology and payment reforms.
In academia, Dr. Kaushal is an Adjunct Professor in the Department of Biomedical Data Science at Stanford University, which integrates AI, biomedical informatics, biostatistics and computer science to advance precision health. His teaching emphasizes the application of data—ranging from molecular and tissue-level information to imaging, EHR, biosensors, and population health—to improve medical outcomes.
He remains active in public policy as a Scholar in Residence at the Duke-Margolis Center for Health Policy and was previously a Visiting Scholar at the Brookings Institution. His policy work includes previous appointments to the FDASIA Workgroup of the Health IT Policy Committee and the National Committee on Vital and Health Statistics, advising HHS on data access and use.
Dr. Kaushal is an emergency physician by training, holds an MBA from Stanford University, and earned his MD with distinction from Imperial College London. -
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
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.
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Yujiro Kawai
Postdoctoral Scholar, Cardiothoracic Surgery
Current Research and Scholarly InterestsCardiovascular surgery, Translational research, Regenerative research, Heart failure, Tissue engineering, Heart transplant, Spinal cord ischemia, iPS cell,
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Martin Kawalski MD, PhD
Affiliate, OHNS/Otolaryngology/Head & Neck Surgery
Visiting Scholar, Otolaryngology - Head & Neck Surgery DivisionsBioDr. Martin Kawalski, MD, PhD, is a Sleep Medicine researcher at Stanford University investigating how consumer wearables can quantify the impact of disrupted sleep on aging processes. He is particularly interested in leveraging AI-driven solutions to enhance patient education and engagement in digital health platforms. Prior to his academic career, Dr. Kawalski founded and led innovations in sports and lifestyle electronics, including co-founding SKEO—an alpine sports safety wearable developed with Olympian Bode Miller. His extensive international experience equips him with a global perspective and an ability to collaborate seamlessly across diverse cultures and disciplines.
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Masataka Kawana
Assistant Professor of Medicine (Cardiovascular Medicine)
BioDr. Kawana joined the Advanced Heart Failure and Transplant Cardiology group in 2018. 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 is the Medical Director of Ambulatory Heart Failure and Cardiomyopathy Service in the Advanced Heart Failure program. 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 mechanism of inherited cardiomyopathies, and he studies the effect of gene mutation on the 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.
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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.
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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
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.
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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. -
Preston Kellenberger
Ph.D. Student in Biochemistry, admitted Autumn 2025
BioI was raised in Saint Louis County, MO and completed my undergraduate degree in Biochemistry at The University of Missouri – Columbia. I’m most excited by translational problems that can be addressed through the structural understanding and engineering of biological molecules. At Stanford, I look forward to joining a collaborative community that spans broad scientific disciplines, and to contributing to research that advances human health. I love spending my extra time playing the drums, and I have served as a snare drummer for the world-class Madison Scouts and Cavaliers drum corps.
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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.