School of Medicine


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  • Deborah Kado

    Deborah Kado

    Professor of Medicine (Primary Care and Population Health) and, by courtesy, of Epidemiology and Population Health

    BioDr. Kado is a board-certified, fellowship-trained doctor specializing in geriatrics. She serves as co-director of the Stanford Longevity Center. She is a professor of medicine and chief of research for the Geriatrics Section in the Department of Medicine, Division of Primary Care and Population Health. She is also the Director of the Geriatric Research, Education, and Clinical Center (GRECC) at VA Palo Alto Health Care System.

    For each patient, Dr. Kado prepares a personalized care plan. Her objective is to help all individuals maintain the best possible health and quality of life as they age.

    A special interest of Dr. Kado is bone health. She has conducted extensive research focused on osteoporosis and the related disorder hyperkyphosis.
    Since joining the UCLA faculty in 2000, she has received continuous funding for her research from the National Institutes of Health (NIH).

    She has over 100 peer-reviewed publications of her research findings in the Journal of Bone and Mineral Research, Osteoporosis International, Journal of Gerontology and Medical Sciences, Journal of Geriatric Oncology, Nature Communications, and other peer-reviewed journals.

    In 2007, she defined hyperkyphosis as a new geriatric syndrome. Her discoveries in this field were first featured in the American College or Physician’s premier internal medicine journal Annals of Internal Medicine. Later, they also appeared in a dedicated chapter in UpToDate, the electronic resource providing evidence-based clinical decision support for doctors worldwide.

    Prior to coming to Stanford, Dr. Kado practiced at UC San Diego where she started a dedicated osteoporosis clinic for patient care and research. She later broadened her research interests beyond musculoskeletal aging to study other aging-related topics such as the gut microbiome in older men and the effects of cancer treatments on aging in newly diagnosed breast cancer patients.

    Dr. Kado is a California native. She trained at UCSF and UCLA. She also earned a Master of Science degree in epidemiology at the UCLA School of Public Health, sponsored by the John Hartford Foundation.

    She is a member of the American Geriatrics Society, American Society of Bone and Mineral Research, Gerontological Society of America, The Endocrine Society, and other professional organizations. She co-chairs the NIH National Institute on Aging Workshop for the American Society of Bone and Mineral Research. She also participates in the Bone Health Working Group of the Society for Women’s Health Research.

  • James Kahn

    James Kahn

    Professor of Medicine (General Medical Disciplines), Emeritus

    Current Research and Scholarly InterestsMy initial research activities involved antiretroviral and novel therapeutic treatments of HIV infection, understanding elements of HIV pathogenesis associated with acute HIV infection and post exposure prevention. My most recent scholarly activities concentrate on working as a team to capitalize on the data stored in electronic medical records, HIV disease modeling and using electronic medical records for outcome research and developing a mentorship program for early career scientists.

  • Neil M. Kalwani

    Neil M. Kalwani

    Clinical Instructor, Medicine - Cardiovascular Medicine

    BioNeil Kalwani, MD, MPP is a Clinical Instructor in the Division of Cardiovascular Medicine and Director of Preventive Cardiology at the VA Palo Alto Health Care System. He attended college at Yale University and completed graduate degrees in medicine and public policy at Harvard University. He trained in internal medicine at Brigham and Women’s Hospital before arriving at Stanford in 2018 for fellowship in cardiovascular medicine, during which he served as Chief Fellow. He then completed a postdoctoral fellowship through the Stanford-AHRQ Health Services Research Training Program in the Department of Health Policy. His clinical focus is in general and preventive cardiology and echocardiography. He practices at the VA Palo Alto Health Care System and at Stanford Health Care.

    Dr. Kalwani's research focuses on the evaluation of policies and care delivery innovations designed to improve the value of care for patients with cardiovascular disease.

  • Afrin N. Kamal, MD MS

    Afrin N. Kamal, MD MS

    Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology

    BioAfrin Kamal is a board-certified gastroenterologist, who trained at Washington University in internal medicine, Cleveland Clinic in gastroenterology/hepatology, and most recently Stanford University in esophageal and motility diseases. Afrin shares a clinical passion in esophageal motility diseases with an an overlapping interest in health services and outcomes research.

  • Ahmad Kamal, MD, MS

    Ahmad Kamal, MD, MS

    Clinical Associate Professor (Affiliated), Medicine - Med/Gastroenterology and Hepatology

    BioDr. Kamal graduated from the University of California at Irvine in 1995 with a B.S. in Biology and received his M.D. from Harvard Medical School in 1999. He completed his residency in Internal Medicine and fellowship in Gastroenterology at Stanford in 2006, during which time he also earned an MSc in Clinical Epidemiology.

    ​In addition to serving as associate chief of the division of gastroenterology at SCVMC, Dr. Kamal is vice chair of internal medicine and director of the clinical research pathway, an innovative program that provides mentoring and protected time for clinical research to internal medicine residents. He is active in teaching trainees at all levels and received an outstanding mentor award from Stanford's biodesign program.

    Dr. Kamal has been named a fellow of the American Gastroenterological Association and has been recognized several times in the "Top Doctors" list. He received the Hospital Quality Institute's C. Duane Dauner Award for his work in specialty care transformation and was one of 6 recipients of Silicon Valley Business Journal's Excellence in Healthcare Award. During the COVID-19 pandemic, he served as Director of Health Systems Preparedness for Santa Clara County and was awarded a Medal for Outstanding Service by the Board of Supervisors.

    Dr. Kamal has also been active in clinical and health services research, authoring over 20 peer-reviewed publications, 40 abstracts, and 7 book chapters. ​