School of Medicine
Showing 401-420 of 445 Results
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Mark Van Orden
Postdoctoral Scholar, General Internal Medicine
BioMark Van Orden is a postdoctoral scholar at the Stanford School of Medicine. His research applies causal inference and natural experiments to questions at the intersection of economics and health. His current work examines how shingles vaccination affects brain structure using MRI data from the UK Biobank, providing the first causal neuroimaging evidence of how vaccination protects against dementia. He received his PhD in Economics from the University of California, Irvine.
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Maria Norma Villalon Landeros
Clinical Assistant Professor, Medicine - Primary Care and Population Health
BioDr. Norma Villalon's path to medicine reflects a journey of perseverance and community service. Born and raised in rural Guanajuato, Mexico, her early years were shaped by strong family bonds and a deep appreciation for community care, despite financial challenges. Before immigrating to the United States at 18, she dedicated herself to adult education through INEA, teaching literacy and basic education to members of her community. This early experience fostered her commitment to serving diverse populations and understanding their unique needs. As a first-generation professional from an immigrant background, Dr. Villalon brings a unique perspective to medicine, informed by her profound understanding of underserved communities. Her journey from a small Mexican village to becoming a physician exemplifies the power of determination and the importance of accessible healthcare. Through her work, she continues to advocate for equitable medical care while actively mentoring and supporting the next generation of physicians from underrepresented backgrounds.
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Kathan Vollrath, MD, MPH
Clinical Associate Professor, Medicine - Primary Care and Population Health
BioDr Vollrath is an internal medicine primary care physician at Stanford Internal Medicine Clinic. She provides asynchronous message-based care via myHealth, including inbox coverage for faculty on vacation. She is a QuEST scholar, studying the implementation of this new service.
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Katherine T. Ward, MD
Clinical Professor, Medicine - Primary Care and Population Health
BioDr. Ward is the Chief of the Geriatrics Section in the Department of Medicine, Division of Primary Care and Population Health at Stanford University School of Medicine, and a Clinical Professor of Medicine. In this leadership role, she supervises program leaders across outpatient, inpatient, and skilled nursing facility settings, bringing them together to provide longitudinal, coordinated care to older adults across the healthcare continuum.
Dr. Ward is a fellowship-trained geriatrician with Stanford in Palo Alto, California, and is board certified in geriatric medicine, hospice and palliative medicine, and internal medicine. Her clinical practice spans all care settings—outpatient clinics, hospitals, and skilled nursing facilities—with a focus on managing the critical transitions between them. She specializes in comprehensive care for older adults, including dementia care, palliative care, geriatric assessment, and best practices in nursing home care. Dr. Ward draws on her extensive experience to teach and implement evidence based models that support care for older adults. Dr. Ward's research interests include early detection of dementia in vulnerable populations, dementia care support programs, and geriatric assessment in diverse populations.
She has published her research in peer-reviewed journals including the Journal of the American Geriatrics Society; The American Journal of Geriatric Pharmacotherapy; The Journal of Nutrition, Health & Aging; and the Journal of Palliative Medicine. She has served as an ad hoc reviewer for several journals, including Geriatrics, and has presented posters at annual meetings of the American Geriatrics Society and the Society of General Internal Medicine.
Dr. Ward is a member of the American College of Physicians and the American Geriatrics Society. -
Eva Weinlander
Clinical Professor, Medicine - Primary Care and Population Health
Current Research and Scholarly InterestsWomen's Health
Mind Body Medicine
Chronic Disease Management -
Kirsti Weng Elder MD/MPH
Clinical Associate Professor, Medicine - Primary Care and Population Health
BioDr. Weng was the Section Chief of General Primary Care from 2020-2023. Dr..Weng has served in roles as Medical Director, and leader of care programs as well as improvement projects. She enjoys leading doctors and strives to inspire those around her to practice patient-centered care as well as physician self-care. She is a leader in organizational change and physician management. As a leader in primary care re-design, she is passionate about balancing the needs of the patient, provider and health care institution. She is an advocate of Mindfulness Self-compassion. Dr Weng is currently semi-retired. She works in the Express Care Clinic as a provider and does individual life and executive coaching.
Kirsti Weng Elder has over 35 years of experience caring for patients in primary care, urgent care and in the hospital. She is a teacher of students and residents. She practices with an emphasis on musculoskeletal care as she feels fitness is a foundation for wellness.
Kirsti supports community health and care for the underserved. Outside of work she enjoys biking, reading and spending time with her 8 children. She is on the board of the Valley Health Foundation. -
Frederik Wild
Postdoctoral Fellow, Medicine - Primary Care and Population Health
BioI am a postdoctoral researcher at Stanford University (Geldsetzer Lab) and the Heidelberg Institute of Global Health (Germany).
In my research, I apply micro-econometric methods, specifically quasi-experimental designs, to study how policy interventions and external shocks shape health, human capital, and socioeconomic outcomes. I particularly enjoy investigating large-scale datasets as well as geospatial data.
Further information on my work is available on my personal webpage at: www.frederikwild.com -
Temesgen 'Tem' Woldeyesus
Clinical Assistant Professor, Medicine - Primary Care and Population Health
BioDr. Tem (Temesgen) is a Clinical Assistant Professor in the Department of Medicine, Division of Primary Care and Population Health. He obtained his medical degree at UCSF and continued his residency training at UCSF in Family and Community Medicine. He was selected as Chief Resident, where he further developed as a clinical educator and administrator, prior to joining the faculty group at Stanford. His academic interests include alternative models of care, community health, clinical informatics, and digital health innovation in safety net settings.
Dr. Tem Woldeyesus practices full-spectrum family medicine, which includes care for the entire age spectrum. He is driven to provide evidence-based, high quality, culturally competent care.
He is a native of the Bay Area. Outside of work, he enjoys spending time with his wife and kids, playing (and watching) basketball, and exploring national parks.
