School of Medicine


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  • Francois Haddad

    Francois Haddad

    Clinical Professor, Medicine - Cardiovascular Medicine

    BioDr. Francois Haddad, MD is a Clinical Professor of Medicine that specializes in the field of cardio-vascular imaging, pulmonary hypertension, advanced heart failure and transplantation. Dr. Haddad has over 18 years of practice in the field of cardiology. He directs Stanford Cardiovascular Institute Biomarker and Phenotypic Core Laboratory dedicated to translational studies in cardiovascular medicine. The laboratory focuses on (1) identifying early biomarkers of heart failure and aging, (2) bioengineering approaches to cardiovascular disease modeling and (3) novel informatic approach for the detection and risk stratification of disease. He is involved is several precision medicine initiatives in health including the Project Baseline, the Integrated Personalized Omics Profiling Initiative, the Athletic screening program at Stanford and the Strong-D cardiac rehabilitation initiative in individuals with diabetes mellitus.

  • Lindsey Merrihew Haddock

    Lindsey Merrihew Haddock

    Clinical Assistant Professor, Medicine - Primary Care and Population Health

    BioLindsey Haddock, MD, MAEd, is a geriatrician and clinician-educator with a master's degree in education. Her research in medical education focuses on learning in the clinical workplace and evaluation of workplace-based assessments. She is the co-director of Primary Care and Population Health's Quality Education Scholarship Training program (QuEST), and the associate program director of the fellowship in Geriatrics. She works clinically in Stanford Senior Care Clinic and the inpatient geriatrics service.

  • Kurt M. Hafer, MD, FACP

    Kurt M. Hafer, MD, FACP

    Clinical Associate Professor, Medicine - Primary Care and Population Health

    BioDr. Kurt Hafer is a board-certified physician and Fellow of the American College of Physicians (FACP) practicing Primary Care Internal Medicine exclusively at Stanford Concierge Medicine.

    Dr. Hafer grew up in Chapel Hill, NC and attended Pomona College, where he received his undergraduate degree in Psychology. After completing post-baccalaureate pre-medical coursework at the University of Michigan (UM) in Ann Arbor, he worked as a neuro-endocrine peptide researcher at UM.

    In 1999, Dr. Hafer graduated from The University of Chicago Pritzker School of Medicine. He completed a Primary Care Internal Medicine Residency at Santa Clara Valley Medical Center (SCVMC) in San Jose in 2002. Between 2002 to 2012 he was a Teaching Attending Physician at SCVMC as well as an adjunct Stanford physician, training medical students and residents in Internal Medicine.

    Dr. Hafer joined Stanford in 2012 as the founding Medical Director of the Stanford Primary Care, Portola Valley Clinic -- Stanford's first new primary care clinic in many years. His five years of leadership at the Portola clinic included incorporating the latest technologies into primary care, adopting active population health panel management, LEAN management practices, embedded specialists and evidence-based, best-care practices as a viable model for the future of Stanford Primary Care.

    In January 2017, Dr. Hafer joined Stanford Concierge Medicine as Medical Director. In addition to caring for his patients, his duties include directing the clinic and expanding clinic offerings in mental health, wellness, and piloting Primary Care Genetics and Pharmacogenomics screening programs as a test bed for Stanford Primary Care.

    While at Stanford, Dr. Hafer has served as a lecturer for the American College of Physician's Internal Medicine Maintenance of Certification Course held in San Francisco, and has been a Reviewer for the American College of Physicians on multiple projects. He has served on numerous Stanford Healthcare committees and worked with teams on numerous projects, including Stanford's Primary Care 2.0 Redesign, Hypertension Center of Excellence Clinical Integration Team, The Virtual Hypertension Monitoring Project, and Stanford's Primary Care Precision Health program design team. He has directed pilots of TeleHealth phone and video visits, integration of specialty care MDs into our primary care clinics. He led a successful Clinical Effectiveness Leadership Training (CELT) project using clinical pharmacists embedded in primary care clinics to more effectively manage diabetes and high blood pressure between MD visits. He has also served as the Physician Leader for Stanford's Realizing Improvement through Team Empowerment (RITE) Quality Improvement Program.

    He currently serves as a Physician Member and Chair (2023, 2024) of the Global Executive Services (GES) Network Steering Committee, part of the Vizient University Health System Consortium, a national group of ~200 members of academic medical centers with Executive Health or Concierge Medicine services.

    When not caring for patients, Dr. Hafer enjoys spending time outdoors with family and friends. He is married to a Stanford University History Professor, has a daughter who graduated from Stanford and UCLA Medical School (now a resident at UCSF), as well as a son who is completing a masters degree in computer science at Stanford. He is an avid lifelong cyclist (road and MTB, logging up to 8k miles annually), hiker, has a passion for tinkering with vintage Datsuns and enjoys wearing vintage watches.

    Dr. Hafer believes that a combination of truly knowing his patients as individuals, excellent patient-physician communication, and comprehensive preventive care allows him to provide exceptional care for his patients.

  • James Hallenbeck, MD

    James Hallenbeck, MD

    Associate Professor of Medicine (Primary Care and Population Health) at the Palo Alto Veterans Affairs Health Care System, Emeritus

    Current Research and Scholarly InterestsResearch in hospice and palliative care with emphases on physician education, cultural aspects of end-of-life care, and healthcare system issues.

  • Summer Han

    Summer Han

    Associate Professor (Research) of Neurosurgery, of Medicine (Biomedical Informatics) and, by courtesy, of Epidemiology and Population Health

    Current Research and Scholarly InterestsMy current research focuses on understanding the genetic and environmental etiology of complex disease and developing and evaluating efficient screening strategies based on etiological understanding. The areas of my research interests include statistical genetics, molecular epidemiology, cancer screening, health policy modeling, and risk prediction modeling. I have developed various statistical methods to analyze high-dimensional data to identify genetic and environmental risk factors and their interactions for complex disease.

  • Josef Hannah

    Josef Hannah

    Clinical Assistant Professor, Medicine - Primary Care and Population Health

    BioDr. Hannah graduated from Kansas City University of Medicine & Biosciences. He then completed a residency in Internal Medicine at the University of Kansas and a fellowship in Hospice & Palliative Medicine at Stanford University before joining as faculty at Stanford. His clinical practice includes both inpatient palliative care consultation as well as ambulatory care in palliative medicine. His research and educational interests include symptom management and utilizing media to grow palliative care services and education.

  • Stephanie Harman

    Stephanie Harman

    Clinical Professor, Medicine - Primary Care and Population Health

    BioDr. Stephanie Harman is a palliative care physician and Clinical Professor of Medicine. She graduated from Case Western Reserve University School of Medicine and went on to complete a residency in Internal Medicine at Stanford and a Palliative Care fellowship at the Palo Alto VA/Stanford program. She then joined the faculty at Stanford. She co-founded the Palliative Care Program at Stanford Health Care in 2007 and served as Clinical Chief of the Section of Palliative Care in the Division of Primary Care and Population Health from 2016 - 2022. She is the inaugural Associate Chair for Women in Medicine for the Department of Medicine and the Director of the Stanford Leadership Development Program, a joint program between Stanford Health Care and the School of Medicine for emerging leaders. A 2017 Cambia Health Foundation Sojourns Scholar Leader Awardee, she has a passion for leadership development and has built a Women Leaders in Academic Medicine (WLAM) program in the Division of Primary Care and Population Health, which is now in its 6th year with 28 women leaders. Her other professional interests include clinical ethics and serious illness communication.

  • William Haskell

    William Haskell

    Professor (Research) of Medicine, Emeritus

    Current Research and Scholarly InterestsMy major research interests and activities over the next several years will focus on the development and evaluation of the objective measurement of physical activity in free-living populations using a variety of sensing devices and mobile phones for data collection and processing. Also, I will continue to direct the Stanford Heart Network with the major mission being to assist community-based CVD prevention/treatment programs implement more effective heart attack and stroke prevention programs.

  • Sejal Tyle Hathi, MD MBA

    Sejal Tyle Hathi, MD MBA

    Clinical Instructor, Medicine

    BioDr. Sejal Tyle Hathi is a board-certified physician and nationally recognized public health leader with more than 15 years of experience advancing physical and mental health, women's rights, and public policy in the United States and globally.

    She serves as the 4th permanent Director of the Oregon Health Authority, appointed to the cabinet position by Governor Tina Kotek and unanimously confirmed by the Oregon Senate to oversee all health care and public health services, policies, and programs for the State of Oregon. Most recently, she served as New Jersey's deputy health commissioner and state health officer -- a position she held after two years as the Biden White House's Senior Policy Advisor for Public Health, where she led several presidential priorities across mental health, climate and health, public health preparedness, and supply chain policy. She has also held joint faculty appointments as an assistant professor of medicine at the Johns Hopkins School of Medicine & Bloomberg School of Public Health.

    Dr. Hathi grew up in Fremont, California and received her B.S. with honors from Yale University and her M.D. / M.B.A. from Stanford University, where she studied as a Harry S. Truman Scholar and Paul & Daisy Soros Fellow. She completed her clinical training in internal medicine and primary care at Harvard Medical School and the Massachusetts General Hospital.

  • Catherine Heaney

    Catherine Heaney

    Associate Professor (Teaching) of Psychology and of Medicine (Stanford Prevention Research Center)

    Current Research and Scholarly InterestsEnhancing our understanding of psychosocial factors at work (occupational stress, social support at work, organizational justice, organizational empowerment) that are associated with health and disease.

    Developing effective strategies for enhancing employee resiliency and reducing exposure to psychological and behavioral risk factors at work.

  • Gregory M. Heestand, MD

    Gregory M. Heestand, MD

    Clinical Associate Professor, Medicine - Oncology

    BioDr. Heestand is a board-certified medical oncologist with a focus on gastrointestinal cancers, primarily hepatocellular carcinoma, cholangiocarcinoma, and gallbladder cancer. He serves as the medical oncology champion of the Stanford Hepatobiliary Tumor Board, as well as the principal investigator of multiple clinical trials. He collaborates with campus laboratories to help develop new biomarker and treatment technologies. He is the former director of the Stanford Oncology Fellowship Program.

    Dr. Heestand and his team take great pride in helping patients and their families face gastrointestinal cancer.

    Outside of the clinic, Dr. Heestand enjoys playing the piano, teaching his kids about music, cooking for friends and family, and surfing the internet for interesting things to read.

  • Shireen N. Heidari

    Shireen N. Heidari

    Clinical Associate Professor, Medicine - Primary Care and Population Health

    BioShireen Heidari, MD is a palliative care and family medicine physician. She works as part of the inpatient palliative care consult team providing symptom management and support for patients and families facing any stage of a serious illness. Dr. Heidari is the program director for the Stanford University Hospice and Palliative Fellowship. She previously served as the clinical lead for the Stanford site of the PERIOP-PC Study, collaborating with the surgical department to evaluate the impact of early palliative care support for patients and family members preparing for major upper gastrointestinal cancer surgery.

    Dr. Heidari has written about the importance of human connection and stigma around healthcare workers seeking help for their mental health in The New England Journal of Medicine, The Lancet Respiratory Medicine, and The Intima. She hopes that by sharing her own story, she can continue being part of this conversation as we advocate for culture change in medicine and more sustainable practice.

    Before moving to northern California, Dr. Heidari attended medical school at Boston University, completed her residency at UC San Diego where she served as chief resident, followed by palliative fellowship at UCLA. Outside of her clinical and mentorship work, she is likely writing creatively or outside with her husband chasing their dogs.

  • Paul Heidenreich, MD

    Paul Heidenreich, MD

    Professor of Medicine (Cardiovascular)

    Current Research and Scholarly InterestsMy research interests include

    1) The cost-effectiveness of new cardiovascular technologies.
    Example: tests to screen asymptomatic patients for left ventricular systolic dysfunction.

    2) Interventions to improve the quality of care of patients with heart disease. Examples: include clinical reminders and home monitoring.

    3) Outcomes research using existing clinical and administrative datasets.

    4) Use of echocardiography to predict prognosis (e.g. diastolic dysfunction).

  • Heather Henri, MD

    Heather Henri, MD

    Clinical Associate Professor, Medicine - Primary Care and Population Health

    BioDr. Heather Henri is an Associate Professor at the Stanford University School of Medicine.

    Dr. Henri attended Stanford University, where she received her undergraduate degree in Biological Sciences. At Stanford she was the recipient of the President's Award for Academic Excellence in the Freshman Year, awarded to the top 3% of students. She has been the recipient of an American Heart Association Internship at the National Heart Lung and Blood Institute of the National Institutes of Health (NIH). She also was awarded two Howard Hughe's Institute Research Fellowships at the NIH, one at the National Cancer Institute and the second at the National Eye Institute.

    In 2000, Dr. Henri graduated from Harvard Medical School. She then completed a Surgical Internship at Stanford Medical Center, followed by an Internal Medicine Residency at Stanford in 2004. She served as the Clinic Chief at Blake Wilbur of Stanford Medical Group from 2006-2009, as well as on the General Internal Medicine Executive Committee at Stanford between 2006-2009.

    Dr. Henri was named as a "Top Reviewer" based on the quality of reviews by the Annals of Internal Medicine in 2006. With Dr. Peter Rudd, she co-authored the chapter "Hypertension: Context and Managment" in the Textbook of Cardiovascular Medicine published in 2007. Between 2006-2007 Dr. Henri was a member of the California Academic Collaborative on Chronic Care.

    In 2013, Dr. Henri joined Stanford Concierge Medicine where she practiced for six years. She also served as Director of the American College of Physician's Internal Medicine Maintenance of Certification Course held in San Francisco from 2013-2017. Dr. Henri has been invited by the American College of Physicians to work on multiple projects. She served on the Internal Medicine Essentials Text and Online Questions Editorial Review Board for the American College of Physicians. In 2016, 2017 and 2018 Dr. Henri reviewed and authored educational material for the American College of Physician's Medical Knowledge and Self Assessment Program (MKSAP 17) Updates. Starting in 2018, Dr. Henri was a primary regular reviewer of educational podcasts published by the American College of Physicians. In 2023 Dr. Henri served as a content Editor for the American College of Physicians Board Preparation course.

    Dr. Henri feels that comprehensive preventive care, combined with excellent patient-physician communication, is fundamental to her care of patients.

    American Board of Internal Medicine Certification 2004, 2014
    Fellow American College of Physicians 2016

  • Lisa Henriksen

    Lisa Henriksen

    Associate Professor (Research) of Medicine (Stanford Prevention Research Center)
    Sr Research Engineer, Medicine - Stanford Prevention Research Center

    Current Research and Scholarly InterestsMy research aims to improve our understanding of the health risks associated with exposure to tobacco marketing and provide a scientific rationale for new policies to reduce it. I also study use of media to promote and discourage adolescent tobacco use, and the impact of tobacco advertising on urge and craving to smoke.

  • Tina Hernandez-Boussard

    Tina Hernandez-Boussard

    Professor of Medicine (Biomedical Informatics), of Biomedical Data Science, of Surgery and, by courtesy, of Epidemiology and Population Health

    Current Research and Scholarly InterestsMy background and expertise is in the field of computational biology, with concentration in health services research. A key focus of my research is to apply novel methods and tools to large clinical datasets for hypothesis generation, comparative effectiveness research, and the evaluation of quality healthcare delivery. My research involves managing and manipulating big data, which range from administrative claims data to electronic health records, and applying novel biostatistical techniques to innovatively assess clinical and policy related research questions at the population level. This research enables us to create formal, statistically rigid, evaluations of healthcare data using unique combinations of large datasets.

  • Mark Hlatky, MD

    Mark Hlatky, MD

    Professor of Health Policy, of Medicine (Cardiovascular Medicine) and, by courtesy, of Epidemiology and Population Health

    Current Research and Scholarly InterestsMy main research work is in "outcomes research", especially examining the field of cardiovascular medicine. Particular areas of interest are the integration of economic and quality of life data into randomized clinical trials, evidence-based medicine, decision models, and cost-effectiveness analysis. I am also interested in the application of novel genetic, biomarker, and imaging tests to assess risk and guide clinical management of coronary artery disease.

  • Dora Ho

    Dora Ho

    Clinical Professor, Medicine - Infectious Diseases

    Current Research and Scholarly InterestsDr. Ho did her PhD work in HSV pathogenesis and postdoctoral research in CNS gene therapy with viral vectors. She is currently the clinical chief of the Division of Infectious Diseases and Geographic Medicine. She specializes in infection complications of immunocompromised patients, such as those with cancers, solid organ transplant or bone marrow transplant.

  • Edith Ho

    Edith Ho

    Clinical Associate Professor, Medicine - Gastroenterology & Hepatology

    Current Research and Scholarly InterestsDr. Ho plays an active role in the American College of Gastroenterology (ACG) Educational Affairs committee, where she chairs several abstract committees, directs regional post-graduate courses, regularly reviews physician course content, and develops CME content for the American Journal of Gastroenterology. She is also involed in the ACG Research Committee, which plays a criticol role in setting the direction of scientific advancement, education, and distribution of grant funding. Dr. Ho has also served as a guideline author for the American Gastroenterological Association on endoscopic therapies for weight loss and the medical management of luminal and perianal Crohn's disease. These guidelines shed new knowledge and set new standards of care for clinical practice here and abroad.

  • Andrew R. Hoffman

    Andrew R. Hoffman

    Professor of Medicine (Endocrinology), Emeritus

    Current Research and Scholarly InterestsMechanism of genomic imprinting of insulin like growth factor-2 and other genes.Long range chromatin interactions Role of histone modifications and DNA methylation in gene expression.

  • Seth Ari Sim-Son Hoffman

    Seth Ari Sim-Son Hoffman

    Instructor, Medicine - Infectious Diseases

    Current Research and Scholarly InterestsClinical research to benefit underserved populations.

  • Thomas Holden, MD

    Thomas Holden, MD

    Clinical Assistant Professor, Medicine - Oncology

    BioDr. Holden is a board-certified, fellowship-trained medical oncologist. He is a Clinical Assistant Professor at Stanford University School of Medicine.

    He specializes in care for people with gastrointestinal cancer including those of the colon, rectum, esophagus, liver, pancreas, and stomach. Dr. Holden works closely with patients to prepare personalized, comprehensive, and compassionate care plans that optimize healing and quality of life.

    Dr. Holden has conducted research into a wide range of subjects. He co-developed and established a multi-center trial investigating a new treatment regimen for gastric cancer. He has studied use of a fitness tracker to assess activity levels and toxicities in patients with colorectal cancer. He also has written invited commentary on the rapidly advancing field of genetic testing as well as a review on recent updates on the treatment of early-stage rectal cancer.

    He has published his research findings in articles in peer-reviewed journals including JAMA, the Journal of Clinical Oncology, Cortex, and elsewhere. He has made poster presentations to his peers at meetings including the ASCO Gastrointestinal Cancers symposium and House Staff Quality Improvement and Patient Safety Conference, a meeting held annually at Thomas Jefferson University.

    Dr. Holden has volunteered his time and expertise to help improve access to health care for homeless and underserved populations.

    In his free time, he runs, reads, plays the acoustic guitar, and travels.

  • Mark Holodniy

    Mark Holodniy

    Professor of Medicine (Infectious Diseases)

    Current Research and Scholarly InterestsMy research program is currently focused in three areas: 1) Translational research (viral evolution and antiviral resistance prevalence and development), 2) Clinical trials (diagnostic assay/medical device, antimicrobials and immunomodulators), and 3) Health services research focusing on public health, infectious diseases and clinical outcomes.

  • Marisa Holubar, MD MS

    Marisa Holubar, MD MS

    Clinical Professor, Medicine - Infectious Diseases

    BioDr. Marisa Holubar specializes in the treatment of infectious diseases and works primarily in the inpatient setting. She is particularly interested in antimicrobial stewardship and is dedicated to the mentorship and professional development of trainees and junior faculty.

  • Jason Hom

    Jason Hom

    Clinical Associate Professor, Medicine

    Current Research and Scholarly InterestsSince 2002, I have worked on a variety of clinical and translational imaging research projects. I have been fortunate to have Dr. Max Wintermark as a research mentor.

    Since 2012, I have worked on a variety of multi-disciplinary high value care research projects, with a focus on studying interventions related to provider education and EHR-based clinical decision support systems. As technology has progressed, I have examined a spectrum of interventions, ranging from static guideline-based best practice alerts to more advanced AI-based systems. Due to prior research work with code sets and based on my administrative roles, I have a particular interest in researching LLM use for clinical documentation.

    Since 2015, I have had the distinct privilege of being a clinical team member for The Stanford Center for Undiagnosed Diseases (undiagnosed.stanford.edu - PIs Dr. Euan Ashley, Dr. Matt Wheeler, Dr. Jon Bernstein & Dr. Paul Fisher).

  • Jison Hong

    Jison Hong

    Clinical Assistant Professor, Medicine - Immunology & Rheumatology

    BioJison Hong, MD specializes in the diagnosis, evaluation and management of all rheumatologic diseases. She has a special interest in evaluating and managing patients with complex gout and granulomatous mastitis. She is involved in projects to improve clinical care and promote language equity for those with limited English proficiency. She is involved in research identifying barriers to healthcare access along with mental health resources and outcomes for Asian American Native Hawaiian and Pacific Islander communities. Dr. Hong serves as the division champion for Stanford's Value Based Care Program which focuses on initiatives aimed at delivering high quality care at lower cost.

    Dr. Hong received her medical degree and Internal Medicine residency training at Rutgers- New Jersey Medical school in Newark, New Jersey. She served as a Chief Resident for an additional year and then went on to complete her fellowship training in Immunology & Rheumatology at Stanford University Medical Center . She joined the faculty in the Division of Immunology & Rheumatology at Stanford in 2014 as a Clinical Assistant Professor where she continues to practice.

  • Joseph Hopkins

    Joseph Hopkins

    Clinical Professor Emeritus (Active), Medicine - Primary Care and Population Health

    Current Research and Scholarly InterestsQuality improvement, process improvement, physician leadership development, patient safety, physician professionalism.

  • Benjamin Davies Horne

    Benjamin Davies Horne

    Adjunct Clinical Associate Professor, Medicine - Cardiovascular Medicine

    BioDr. Benjamin Horne is an Adjunct Clinical Associate Professor who is based at the Intermountain Medical Center Heart Institute in Salt Lake City, UT, where he serves as the Director of Cardiovascular and Genetic Epidemiology. His doctoral training (PhD) in genetic epidemiology was completed at the University of Utah and he holds masters degrees in public health and in biostatistics. Dr. Horne is a fellow of the American Heart Association, a fellow of the American College of Cardiology, and a member of the American Society of Human Genetics. Dr. Horne’s research focuses on population health and precision medicine, including evaluating the genetic epidemiology of heart diseases, developing and implementing clinical decision tools for personalizing medical care, discovering the human health effects of intermittent fasting, and studying the influences of air pollution on major adverse health events.

  • Sandra Horning

    Sandra Horning

    Professor of Medicine, Emerita

    Current Research and Scholarly InterestsClinical Interests: Hodgkin's disease and non-Hodgkin's lymphoma. Research Interests: clinical trials in Hodgkin's disease and malignant lymphoma including high dose therapy and autografting, complications of cytotoxic therapy, novel therapeutics, and clinicopathologic correlations.

  • Audra Horomanski

    Audra Horomanski

    Clinical Assistant Professor, Medicine - Immunology & Rheumatology

    BioDr. Horomanski specializes in the diagnosis and treatment of rheumatologic diseases. She received her undergraduate degree from Case Western Reserve University, medical degree from Wright State University, and completed her Internal Medicine residency and Rheumatology fellowship at Stanford University. She is the Director of the Stanford Vasculitis Clinic where she manages the complex care of patients with all types of vasculitis and works closely with partners in related specialties. She has a specific interest in clinical trials and a Graduate Certificate in Epidemiology and Clinical Research. Dr. Horomanski also received training in musculoskeletal ultrasound from the USSONAR program and is an integral part of Stanford's Diagnostic and Interventional Musculoskeletal Ultrasound Clinic. Additional areas of research include the application of ultrasound in the study and management of rheumatologic diseases.

  • Hitomi Hosoya, MD, PhD

    Hitomi Hosoya, MD, PhD

    Instructor, Medicine - Blood & Marrow Transplantation

    BioDr. Hosoya is fellowship-trained in blood and marrow transplantation, cellular therapy and hematology with the Stanford Medicine Cancer Center and an instructor at Stanford University in the Department of Medicine, Division of Blood & Marrow Transplantation and Cellular Therapy.

    Her areas of expertise include transplantation, immunotherapies, and cellular therapies for patients with multiple myeloma and other plasma cell disorders. She diagnoses and treats a range of blood disorders from anemia and hemophilia to cancerous conditions like leukemia and multiple myeloma. For each patient, she prepares a personalized, comprehensive, and compassionate care plan.

    Dr. Hosoya’s research is focused on improving cancer diagnostics and therapeutic decision-making in multiple myeloma. She is specifically interested in the genomics of multiple myeloma and its evolution over the course of the disease. Dr. Hosoya is studying the role of circulating tumor DNA (ctDNA) in patients with multiple myeloma and developing tools to detect and quantify tumors and their response to chemotherapy and immunotherapy, with a goal of informing personalized therapies. Dr. Hosoya demonstrated ctDNA is useful in detecting and monitoring tumor, and its prognostic value for patients undergoing CAR T-cell therapy in multiple myeloma. Her ongoing research is focused on applying cell-free DNA sequencing towards sensitive detection of copy number alterations, gene expression inferences, and understanding mechanisms of disease response and resistance in diverse therapies in multiple myeloma.

    Dr. Hosoya is a member of the Society for Immunotherapy of Cancer, American Society of Clinical Oncology, American Society of Hematology, and the Japan Team Oncology Program.

  • 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 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, women’s heart health, and AHFTX fellowship curriculum design/development. Her research interests include multi-organ transplantations and advocacy of diversity-equity-inclusion in advanced HF therapies. 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

  • 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.

  • Robert Huang

    Robert Huang

    Assistant Professor of Medicine (Gastroenterology and Hepatology)

    Current Research and Scholarly InterestsEpidemiology
    Epidemiology of gastric cancer
    Racial and ethnic disparities in gastric cancer
    Gastric intestinal metaplasia and other precancerous lesions
    Molecular marker development
    Microbiome

  • William Hui, MD

    William Hui, MD

    Clinical Assistant Professor, Medicine - Primary Care and Population Health

    BioDr. Hui is a family medicine physician. He practices in the same-day clinic at Stanford Family Medicine clinic in Palo Alto and is a clinical assistant professor in the Department of Medicine, Division of Primary Care and Population Health.

    He is the point-of-care ultrasound (POCUS) lead in the Division of Primary Care and Population Health. He also teaches with Global Ultrasound Institute, a community of POCUS practitioners and educators from around the world.

    Dr. Hui completed fellowship training in point-of-care ultrasound at the University of Pennsylvania. He trained as a resident in family medicine at Stanford Health Care after earning his medical degree at Drexel University College of Medicine.

    He has made numerous invited presentations to his peers. Topics include diagnostic and procedural use of point-of-care ultrasound.

    Dr. Hui is a member of the American Academy of Family Physicians, American Institute of Ultrasound in Medicine, and Society of Teachers of Family Medicine.

    He has volunteered with wilderness education and team-building programs for underprivileged youth. He also has provided translation and intake services to underserved and uninsured Chinese and Indonesian patients at a community clinic.

    Dr. Hui enjoys long-distance running and bouldering in his free time. He is also a coffee enthusiast.

    He speaks English fluently and Cantonese with limited working proficiency.

  • Sharon Wei Hung

    Sharon Wei Hung

    Clinical Assistant Professor, Medicine - Primary Care and Population Health

    BioDr Sharon Hung is a board-certified Internal Medicine physician who practices at the Stanford Internal Medicine Clinic in Santa Clara.

    She received her MD degree at Northwestern Feinberg School of Medicine and completed her internal medicine residency training at Cedars-Sinai Medical Center.
    Prior to working at Stanford, she was on faculty at the University of Arizona College of Medicine.

    Currently, her clinical interests include both preventative medicine as well as managing chronic medical conditions such as diabetes, osteoporosis and steatotic liver disease.
    She is the Director of Women’s Health for the Primary Care and Population Health department. Under this role, she is the course director of Stanford CME's Women's Health conference and the host for the Stanford CME's Women's Health vodcast which can be found on YouTube.
    She offers group patient visits for counseling on osteoporosis and creates educational resources for primary care providers on various women’s health topics.

    She is conversational in Spanish and Mandarin.

  • Jennifer L. Hunter, PA-C

    Jennifer L. Hunter, PA-C

    Clinical Assistant Professor, Medicine - Primary Care and Population Health

    BioJennifer Hunter, PA-C is the Lead Advanced Practice Provider (APP) for the Emergency Department & Clinical Decision Unit (CDU) with experience in Adult Congenital Heart Disease (ACHD) and over 10 years of experience in Emergency Medicine. She is also a Clinical Assistant Professor and Educator-4-Care (E4C) at the Stanford School of Medicine & Masters of Science in PA Studies Program.

  • Yusra Hussain, M.D.

    Yusra Hussain, M.D.

    Adjunct Clinical Assistant Professor, Medicine - Primary Care and Population Health

    Current Research and Scholarly InterestsCollaborator in the HALF study
    Collaborator in the PROMISE study
    Primary Investigator, Bidet Pilot Study- 650-644-9230

  • Joo Ha Hwang, MD, PhD

    Joo Ha Hwang, MD, PhD

    Professor of Medicine (Gastroenterology and Hepatology) and, by courtesy, of Surgery

    Current Research and Scholarly InterestsSpecialize in early detection of gastrointestinal malignancies including esophageal, gastric, pancreatic, bile duct & colon cancers. I have both a clinical & research interest in improving the early detection of gastric cancer in particular. I am the PI of the Gastric Precancerous conditions Study, a prospective study of patients with gastric intestinal metaplasia & other precancerous conditions which combines comprehensive clinical & endoscopic data with a large bio-specimen repository.