School of Medicine


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  • Anca M. Hrastinski, MD

    Anca M. Hrastinski, MD

    Assistant Professor of Pediatrics

    Current Research and Scholarly InterestsI am a physician-scientist, neonatologist, and stem cell biologist whose research focuses on understanding mechanisms of human brain development, neuroinflammation, and neurological injury using patient-derived stem cell models.
    I was among the early pioneers of three-dimensional human cortical organoid technologies and contributed to development of foundational protocols for generating region-specific human brain organoids from pluripotent stem cells. My work helped establish the feasibility of modeling human brain development and disease using stem cell-derived tissues and has contributed to the widespread adoption of organoid technologies across neuroscience, regenerative medicine, and translational research.
    A major focus of my laboratory is the development of increasingly sophisticated multicellular organoid and assembloid systems that incorporate diverse neuronal and glial populations to model complex human brain circuitry and disease processes. We integrate stem cell biology, organoid engineering, CRISPR-based genome editing, single-cell transcriptomics, epigenomics, high-content imaging, and computational approaches to identify disease mechanisms and therapeutic targets. These technologies have been applied to studies of hypoxic brain injury, 22q11.2 deletion syndrome, Trisomy 21 (Down Syndrome), Trisomy 18, narcolepsy, Alzheimer's and Parkinson's Disease.

  • Dimitre Hristov

    Dimitre Hristov

    Associate Professor of Radiation Oncology (Radiation Physics), Emeritus

    Current Research and Scholarly InterestsDevelopment and integration of X-ray, MRI and US imaging technologies for radiation therapy guidance; Design of synergistic approaches to radiation therapy delivery; Treatment planning optimization and modeling.

  • Elaine Hsiang

    Elaine Hsiang

    Clinical Instructor, Emergency Medicine

    BioDr. Elaine Hsiang (she/her) is a clinician-researcher within the Department of Emergency Medicine at Stanford University. Her research focuses on LGBTQIA+ health, with particular attention to how intersectionality and experiences of marginalization shape health-seeking behaviors and health care utilization. Her broader portfolio includes work on substance use and HIV-related outcomes, language equity, equity within digital health innovations, and LGBTQIA+ content in graduate medical education.

  • Stephanie Hsiao, MD

    Stephanie Hsiao, MD

    Clinical Assistant Professor, Medicine - Cardiovascular Medicine

    BioDr. Stephanie Hsiao is a clinical assistant professor at Stanford Medicine and a full-time advanced heart failure/transplant cardiologist at the Palo Alto VA. She is the associate program director of the Stanford Cardiology Fellowship and the site director of Palo Alto VA. She grew up in Taipei, Taiwan. She attended undergraduate at UC Berkeley and obtained her Master’s degree in Pharmacology at Cambridge University in the UK. She obtained her M.D. from UC San Francisco. She completed her Internal Medicine residency and General Cardiology fellowship at the California Pacific Medical Center in San Francisco, where she served as the chief resident and chief cardiology fellow. She completed her advanced heart failure/transplant cardiology fellowship at Stanford in June 2022 and joined the Stanford Faculty soon after. She has a strong interest in medical education and quality improvement. Her clinical interests include HF outreach in the VA health care systems, cardiology fellowship curriculum design/development and humanism in medicine. Her research interests include multi-organ transplantations, advanced HF therapies for the underserved and CardioPalliative integration. She plans to lead a career in medical education and quality improvement to deliver exceptional and equitable care for patients needing advanced HF therapies.

  • Robert Hsieh

    Robert Hsieh

    Adjunct Clinical Assistant Professor, Medicine - Oncology

    BioRobert W. Hsieh, M.D. Ph.D. is a medical oncologist who specializes in the treatment of prostate cancer, bladder cancer, kidney (renal) cancer and testicular cancer as a member of Stanford's multi-disciplinary Urologic Cancer Program. Dr. Hsieh obtained his M.D. and Ph.D. degrees at the University of Chicago (Pritzker School of Medicine) and subsequently came to Stanford to complete his Internal Medicine residency and Hematology and Oncology fellowship training (with a clinical focus on genitourinary cancers).

    Dr. Hsieh has also had extensive experience in basic lab research (cancer stem cells, target identification and validation, pre-clinical drug discovery) having done post-doctoral work in the Clarke Lab in the Institute for Stem Cell Biology and Regenerative Medicine. He is currently involved in early phase clinical trials in immuno-oncology in industry.

  • Ann Hsing

    Ann Hsing

    Professor (Research) of Medicine (Stanford Prevention Research Center/Cancer Institute) and of Epidemiology and Population Health

    Current Research and Scholarly InterestsResearch Focus
    • Epidemiology of prostate, hepatobiliary, and thyroid cancers
    • Racial disparities in cancer
    • Endogenous hormones/growth factors
    • Circadian rhythms
    • Chronic inflammation
    • Genetic susceptibility
    • Cancer prevention and control
    • Global oncology and international studies

  • Deborah Hsu, MD, MEd

    Deborah Hsu, MD, MEd

    Professor of Emergency Medicine (Pediatrics) and, by courtesy, of Pediatrics (Hospital Medicine)

    Current Research and Scholarly InterestsCompetency-based medical education; assessment; curriculum development; professional development

    Projects:
    American Board of Pediatrics EPAs Common to All Subspecialties and Subspecialty Specific EPAs. July 2026. Access at https://www.abp.org/sites/public/files/pdf/epas-subspecialties-full-list.pdf. Pediatric Emergency Medicine Entrustable Professional Activities Revisions - Work Group leader. 2025-2026.

    American Board of Pediatrics EPA to Milestone Navigator Pediatric Emergency Medicine Work Group leader. Mapping pediatric emergency medicine milestones 2.0 to pediatric emergency medicine and common pediatric subspecialty entrustable professional activities. March 2024. Access at https://public.tableau.com/app/profile/americanboardofpediatrics/viz/EPAtoMilestoneCrosswalk/PrimaryDashboard?publish=yes

    Pediatric Emergency Medicine Milestones Work Group member. Pediatric Emergency Medicine Milestones. The Accreditation Council for Graduate Medical Education. April 2022. Access at https://www.acgme.org/globalassets/pdfs/milestones/pediatricemergencymedicinemilestones.pdf

    Pediatric Emergency Medicine Milestones Work Group member. Supplemental Guide: Pediatric Emergency Medicine. The Accreditation Council for Graduate Medical Education. April 2022. Access at https://www.acgme.org/globalassets/pdfs/milestones/pediatricemergencymedicinesupplementalguide.pdf

    Milestones 2.0 - Pediatric Emergency Medicine Webcast. ACGME Digital Learning. May 2022. Access at https://www.acgme.org/specialties/pediatrics/milestones/ https://vimeo.com/705402260/17a977fe28

  • Helen H. Hsu

    Helen H. Hsu

    Clinical Associate Professor, Psychiatry and Behavioral Sciences - Vaden Health Center

    BioDr. Hsu is Director of Outreach, Asian American specialist, and lecturer at Stanford University. She is Past President of the American Psychological Association Div. 45 (Society for the Study of Race, Culture and Ethnicity) and is a Past President and Fellow of the Asian American Psychological Association (AAPA), past Chair of the Training Advisory Committee at the American Psychological Association (APA) Minority Fellowship Program. Dr. Hsu also served on the APA Committee on Sexual Orientation and Gender Expression, and was a Union City Human Relations Commissioner for 10 years.
    As a bi-cultural, bi-lingual clinician, Helen has worked within the Alameda County Behavioral Healthcare system as a clinical supervisor within Asian Community Mental Health Services and the City of Fremont Youth and Family Services overseeing K-12 school based clinical services and community care for those living with chronic and severe mental health conditions. She directs outreach and education for preventative mental health care for Stanford CAPS, and teaches the Art of Grief for Stanford Living Education and co-teaches Asian American psychological perspectives on campus.
    Dr. Hsu's work has focused primarily on intersectional diverse communities, culturally responsive treatment, parenting education, school-based clinical services, grief and loss, and mentorship and leadership training of psychology students and is committed to community advocacy and leadership mentoring focusing on marginalized communities.
    She is on the advisory board for the JED foundation which focuses on teen and young adult suicide prevention and promoting mental health. She has worked extensively in private practice and as a consultant for Netflix and various universities, corporate, and clinical training sites. Dr. Hsu is an author of several book chapters on clinical topics and the recent Healing Trauma Workbook for Asian American.

  • Joe Le Hsu

    Joe Le Hsu

    Assistant Professor of Medicine (Pulmonary and Critical Care)

    Current Research and Scholarly InterestsI am interested in understanding the host-pathogen interaction between Aspergillus fumigatus and the lung transplant recipient.