School of Medicine
Showing 5,401-5,500 of 13,083 Results
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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.
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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, OHNS/Sleep Surgery DivisionBioDr. 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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Joshua Keefe, MD, PhD
Affiliate, Department Funds
Resident in MedicineBioJoshua Keefe is a resident physician in the Stanford Internal Medicine Residency as part of the Translational Investigator Program. Josh received his BS in Bioengineering from UCLA and subsequently completed a postbaccalaureate research fellowship at the Framingham Heart Study under the mentorship of Dr. Daniel Levy before obtaining his MD and PhD from the Baylor College of Medicine. Josh completed his PhD under the mentorship of Dr. Xander Wehrens, studying the role of macrophage-mediated inflammation in postoperative atrial fibrillation.
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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. -
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.
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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. -
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
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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.
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Micah Kelly
Radiation and Cancer Biology Administrative Programs Lead, Radiation Oncology - Radiation Biology
Current Role at StanfordAdministrative Associate to Drs. Erinn Rankin, Ted Graves, and Laura Attardi.
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Michael Kelly, MD, MSCI
Clinical Instructor, Orthopaedic Surgery
BioDr. Michael Kelly is a board-certified, fellowship-trained orthopaedic spine surgeon 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, and The Journal of Bone and Joint Surgery. He has shared his expertise at renowned international conferences, including annual meetings of the Scoliosis Research Society and the North American Spine Society (NASS). 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. -
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.
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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.
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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. -
Wayne Kepner
Postdoctoral Scholar, Psychiatry
BioWayne Kepner, PhD, MPH is a public health researcher whose scholarship focuses on health disparities and substance use among vulnerable populations. Dr. Kepner is currently a T-32 Post-doctoral Fellowship in Pain and Substance Use at Stanford University's School of Medicine, where he will continue his research under the mentorship of Dr. Keith Humphreys and Dr. Mark McGovern.
Dr. Kepner received his doctoral degree from the Joint Doctoral Program in Interdisciplinary Research on Substance Use at San Diego State University and the University of California, San Diego. His research focused on substance use disorders, health services utilization, and geospatial analysis of health data, with a particular emphasis on older adult populations. Dr. Kepner has extensive experience in both qualitative and quantitative research methods, having conducted interviews with older adults on cannabis use and analyzed large-scale electronic health records. He has co-authored several peer-reviewed publications on topics ranging from cannabis use trends to emergency department utilization for substance-related diagnoses. In addition to his academic work, Dr. Kepner is committed to community engagement, co-founding Aztecs For Recovery, a collegiate recovery program at SDSU. -
Samantha M Kerath
Director of Finance and Administration, Microbiology and Immunology
Current Role at StanfordDirector of Finance & Administration
Microbiology & Immunology and Baxter Lab -
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).
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Andreas Kerschbaumer
Postdoctoral Scholar, Immunology and Rheumatology
BioDr. Andreas Kerschbaumer is a postdoctoral scholar in the Division of Immunology and Rheumatology at Stanford University, conducting research in the Robinson and Khatri Labs. His work integrates clinical rheumatology with computational and systems immunology, applying meta-analytic techniques on transcriptomic datasets to uncover mechanisms of autoimmunity and improve therapeutic strategies in rheumatology.
He trained in internal medicine and rheumatology at the Medical University of Vienna, Department of Medicine III, Division of Rheumatology, where he also completed his PhD under Professors Smolen and Aletaha on treatment outcomes in inflammatory arthritis, followed by his habilitation on strategies to optimize the interpretation of clinical trial data in rheumatoid and psoriatic arthritis.
Dr. Kerschbaumer has been actively engaged with the European Alliance of Associations for Rheumatology (EULAR), contributing as Fellow, Methodologist, and Co-Methodologist to multiple international taskforces, including the 2019, 2022, and 2025 rheumatoid arthritis recommendations and the 2019 and 2023 psoriatic arthritis recommendations. He is currently a member of the EULAR Quality of Care Committee and serves as Co-Abstract Chair of the ACR Rheumatoid Arthritis abstract committee. -
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.
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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.
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Timothy Keyes
MD Student, expected graduation Spring 2026
Ph.D. Student in Cancer Biology, admitted Winter 2018
MSTP StudentBioTimothy is an MD/PhD student studying cancer biology and biomedical informatics at the Stanford University School of Medicine. He is a joint member of Kara Davis's laboratory in the Department of Pediatrics and Garry Nolan's Laboratory in the Department of Pathology.
As a biomedical data scientist, Timothy's research focuses on the application of machine learning to single-cell data analysis in the context of pediatric leukemia. Through the use of emerging, high-throughout single-cell technologies such as mass cytometry and sequence-based cytometry, Timothy's research is designed to build predictive models of patient outcomes - such as relapse or minimal residual disease (MRD) - at the point of diagnosis. To do so, he uses a variety of computational tools including generalized linear models, clustering, and deep learning. In addition, his work prioritizes constructing easy-to-use, highly-reproducible data analysis pipelines that can be shared as open-source tools for the scientific community.
Outside of science, Timothy has a longstanding interest in human rights and social justice work among members of the lesbian, gay, bisexual, transgender, and queer (LGBTQ+) community. He currently serves as the resident data scientist for the Medical Student Pride Alliance (MSPA), a 501(c)(3) non-profit organization that advocates for diversity, equity, and inclusion for LGBTQ+ medicals students in medical schools across the United States. As a data scientist at MSPA, Timothy analyzes and visualizes data to guide MSPA's strategic decision-making as well as for academic publication. He also advises and mentors other student members of MSPA performing data analysis in Python and R.
In recognition of his accomplishments, Timothy has received several institutional and national award for both research and advocacy. These include a National Research Service Award (NRSA) from the National Cancer Institute, a Junior Leadership Award from the Building the Next Generation of Academic Physicians (BNGAP) LGBT Workforce, Stanford Medicine’s Integrated Strategic Plan Star Award, and a Point Foundation Scholarship. -
Harold Keyserling
Clinical Associate Professor (Affiliated), Rad/Veterans Affairs
Neuroradiologist, Radiology - Diagnostic RadiologyBioHarold Keyserling, MD is a diagnostic radiologist with subspecialty certification in neuroradiology. In addition to his clinical work, Dr. Keyserling is actively engaged in resident education and is a consulting radiologist for the Centers for Disease Control and Prevention (CDC), Division of Global Migration Health.
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Steve Khachi, M.D.
Adjunct Lecturer, Psychiatry and Behavioral Sciences - Child & Adolescent Psychiatry and Child Development
BioDr. Steve Khachi is a double-board-certified psychiatrist specializing in child, adolescent, and adult psychiatry. He is the Founder and Medical Director of the Mind Study Center in Pasadena, California—an integrated mental health clinic offering psychotherapy, medication management, neuropsychological evaluations, and transcranial magnetic stimulation (TMS). His clinic emphasizes interdisciplinary collaboration, clinical excellence, and innovation in care delivery.
Dr. Khachi serves as Adjunct Clinical Faculty at both Stanford University and the University of Southern California (USC), where he teaches and supervises child psychiatry fellows and residents. He is passionate about education and mentorship, and is committed to advancing the next generation of clinicians.
Dr. Khachi completed his Child and Adolescent Psychiatry Fellowship at Stanford University, where he served as Chief Fellow. He completed residency in General Psychiatry at UC San Diego, received his medical degree from the University of Wisconsin School of Medicine and Public Health, and earned his B.S. in Biochemistry–Molecular Biology from UC Santa Barbara. His additional training includes research fellowships at UCSF and the NIH/Howard Hughes Medical Institute. -
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
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.
