School of Medicine


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  • Beth Habelow

    Beth Habelow

    Lecturer, Surgery - Anatomy

    BioPhysical therapist, lecturer

  • Laura Michele Hack

    Laura Michele Hack

    Assistant Professor of Psychiatry and Behavioral Sciences (Public Mental Health and Population Sciences)

    BioDr. Laura Hack is an Assistant Professor in the Department of Psychiatry and Behavioral Sciences and Director of Novel & Precision Neurotherapeutics at the Stanford Center for Precision Mental Health and Wellness. Dr. Hack's translational research program focuses on identifying bioclinical subtypes of depression and comorbid stress-related disorders and testing mechanistically-guided treatments for these subtypes. Dr. Hack studies treatments spanning repurposed medications, such as pramipexole and guanfacine, neuromodulation techniques, ketamine, MDMA, and psilocybin.

    Dr. Hack directs the Stanford Translational Precision Mental Health Clinic (STPMHC), a cutting-edge consultation clinic for patients with a primary diagnosis of depression and comorbid anxiety disorders. Providers in the clinic integrate objective measures with a patient's history and presentation to inform treatment considerations and provide insights into the biological basis of a patient's condition. These measures, which may also help reduce self-blame and foster motivation to pursue recommended treatments, include the investigational use of clinical circuit scores derived from functional magnetic resonance imaging, symptom questionnaires, objective neurocognitive assessments, pharmacogenomic testing, and laboratory work. Patients and their referring doctors receive a detailed report with an explanation of the findings and the implications for treatment.

    Additionally, as Deputy Director of the Precision Neuromodulation Clinic (PNC) within the VA Palo Alto Health Care System, she specializes in delivering novel treatments, including repetitive transcranial magnetic stimulation (rTMS) and ketamine, to patients suffering from treatment-resistant depression and comorbid stress-related disorders.

  • 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.

  • Jennifer Hah

    Jennifer Hah

    Associate Professor of Anesthesiology, Perioperative and Pain Medicine (Adult Pain)

    Current Research and Scholarly InterestsPerioperative Recovery of Opioids Mood and Pain Trial

  • Jin S. Hahn, MD

    Jin S. Hahn, MD

    Professor of Neurology at the Stanford University Medical Center, Emeritus

    Current Research and Scholarly Interests1. Clinical informatics and electronic health records
    2. Neonatal and fetal neurology
    3. Prenatal diagnosis neurodevelopmental anomalies
    4. Personalized Health and Wellness Records

  • Bereketeab Haileselassie

    Bereketeab Haileselassie

    Assistant Professor of Pediatrics (Critical Care)

    Current Research and Scholarly InterestsMy laboratory is focused on understanding the cellular mechanisms which mediate end-organ failure in pediatric sepsis. Our current work focuses on determining the role of altered mitochondrial dynamics in sepsis-induced multi-organ dysfunction syndrome (MODS). Specifically, we focus on understanding the mechanisms that mediate derangements in mitochondrial fission and autophagy in sepsis.

  • Jens Hainmueller

    Jens Hainmueller

    Kimberly Glenn Professor and Professor of Political Science

    BioJens Hainmueller is the Kimberly Glenn Professor of Political Science and Director of Graduate Studies in Stanford University’s Department of Political Science. He co-directs the Stanford Immigration Policy Lab and is a Faculty Affiliate at the Stanford Center for Causal Science, the Institute for Human-Centered Artificial Intelligence, and the Europe Center. He is also a member of the Maternal & Child Health Research Institute at Stanford’s School of Medicine.

    Hainmueller’s research spans statistical methods, causal inference, immigration, and political economy, and he has published nearly 70 articles with over 40,000 citations. Many of his works appear in top journals, including Science, Nature, and PNAS, as well as leading field journals in political science, statistics, economics, and business.

    He has developed widely adopted statistical methods—such as synthetic control methods, entropy balancing, Average Marginal Component Effects, and GeoMatch algorithms—and created several open-source software packages that support empirical research across disciplines. At Stanford, he teaches courses on causal inference and data science.

    Hainmueller’s contributions have earned him prestigious awards, including the Gosnell Prize for Excellence in Political Methodology, the Warren Miller Prize, the Robert H. Durr Award, and the Emerging Scholar Award from the Society of Political Methodology. He is an Andrew Carnegie Fellow, an elected Fellow of the Society of Political Methodology, and holds an honorary degree from the European University Institute (EUI).

    He earned his PhD from Harvard University, with additional studies at the London School of Economics, Brown University, and the University of Tuebingen. Before joining Stanford, he was a faculty member at the Massachusetts Institute of Technology (MIT).

    For a full list of his publications, please refer to his Google Scholar Citation Page and CV.

  • Lou Halamek

    Lou Halamek

    Professor of Pediatrics (Neonatology) and, by courtesy, of Obstetrics and Gynecology

    Current Research and Scholarly Interests1. development of hospital operations centers coupled with sophisticated simulation capabilities
    2. re-creation of near misses and adverse events
    3. optimizing human and system performance during resuscitation
    4. optimizing pattern recognition and situational awareness at the bedside
    5. evaluation and optimization of debriefing
    6. patient simulator design

  • Scott S. Hall, Ph.D

    Scott S. Hall, Ph.D

    Professor of Psychiatry and Behavioral Sciences (Child and Adolescent Psychiatry and Child Development)

    Current Research and Scholarly InterestsMy primary area of scholarly and clinical interest is the pathogenesis of problem behaviors shown by individuals diagnosed with intellectual and developmental disabilities (IDD), particularly those with neurogenetic forms of IDD, such as fragile X syndrome, Cornelia de Lange syndrome and Prader-Willi syndrome. My work aims to both advance understanding of these disorders and to identify effective new treatment approaches for pediatric and adult patient populations by state-of-the-art methodologies, such as brain imaging, eye tracking and functional analysis to determine how environmental and biological factors affect the development of aberrant behaviors in these syndromes. The end goal of my research is to create patient-specific methods for treating the symptoms of these disorders.

  • 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.

  • Meghan Halley

    Meghan Halley

    Assistant Professor (Research) of Pediatrics (Stanford Center for Biomedical Ethics)

    BioMeghan Halley, PhD, MPH is Assistant Professor of Pediatrics (Research) in the Center for Biomedical Ethics at Stanford University School of Medicine. With training in medical anthropology, public health and health services research, her scholarship draws on multidisciplinary theoretical and methodological approaches to examine ethical, legal, social and policy questions arising in clinical and translational research. Her areas of expertise include the ethics of new genomic technologies, normative frameworks for integrating research and clinical care, challenges and opportunities in patient and community engagement, and the epistemic and ethical implications of valuing new health interventions. Her work has been funded by the National Institutes of Health, the Patient Centered Outcomes Research Institute, and the National Science Foundation and published in high-impact journals including the New England Journal of Medicine, Nature Genetics, and the American Journal of Bioethics.

  • Joachim Hallmayer

    Joachim Hallmayer

    Professor of Psychiatry and Behavioral Sciences (Child and Adolescent Psychiatry and Child Development)
    On Partial Leave from 09/01/2024 To 08/31/2026

    Current Research and Scholarly InterestsPrincipal Investigator
    Infrastructure to facilitate discovery of autism genes
    The purpose of this project is to facilitate the discovery of the genes that contribute autism by maintaining an infrastructure which research groups studying the genetics of autism can work collaboratively. This will be
    accomplished through workshops, a Virtual Private Network, and access to a database that includes phenotype and genotype data from all participating groups.

    Principal Investigator
    A California Population-Based Twin Study of Autism
    This will address several fundamental questions: (1) What is the heritability of autism (2) What is the contribution of genetic factors to variation in symptom dimensions? (3) Is there a continuum between the quantitative neurocognitive traits and clinical disorder? (4) What proportion of the variance in the neurocognitive traits is accounted for by genetic and non-genetic factors?

    Co-Investigator
    Center for Integrating Ethics in Genetics Research(Cho)
    The goal of this project is to serve as a center of excellence in neurogenetics research, to develop a national model for bench, to bedside research ethics consultation, and to provide training opportunity in biomedical ethics.

    Co-Investigator
    Gene, Brain and Behavior in Turner Syndrome(Reiss)
    The primary objective of this project is to use advanced, multi-modal magnetic resonance imaging (MRI) techniques, analyses of X chromosome parent-of-origin and cognitive-behavioral assessment to elucidate the effects of monosomy and X-linked imprinting on neurodevelopment and neural function in a large cohort of young girls with Turner syndrome, pre-estrogen replacement.

    Project Director
    Project F: Genomic Analysis in narcolepsy cataplexy
    The goal of the project is to locate genes outside the HLA region that influence susceptibility to narcolepsy. In order to localize these genes we will carry out a linkage and association study in the most extensive world-wide collection of DNAs from well-characterized patients with narcolepsy and their families.

  • Bonnie Halpern-Felsher

    Bonnie Halpern-Felsher

    Marron and Mary Elizabeth Kendrick Professor of Pediatrics and Professor, by courtesy, of Epidemiology and Population Health and of Psychiatry and Behavioral Sciences (Child and Adolescent Psychiatry)

    Current Research and Scholarly InterestsResearch focuses on developmental, cognitive and psychosocial factors involved in adolescents’ and young adults’ health-related decision-making, perceptions of risk and vulnerability, health communication and risk behavior. My research has focused on understanding and reducing health risk behaviors such as tobacco use, alcohol and marijuana use, risky driving, and risky sexual behavior.

  • S. Morad Hameed MD MPH

    S. Morad Hameed MD MPH

    David L. Gregg, MD, Professor

    Current Research and Scholarly InterestsTrauma Surgery
    Emergency General Surgery
    Critical Care
    Public Health

  • Lawrence D. Hammer

    Lawrence D. Hammer

    Professor of Pediatrics (General Pediatrics) at the Lucile Salter Packard Children's Hospital, Emeritus

    Current Research and Scholarly InterestsDr Hammer has had a longstanding interest in factors influencing the development of childhood obesity. In particular, his studies have focused on early determinants of eating behavior, physical activity, and parenting behavior in relation to early feeding decisions and parental influences on diet and eating. With the current epidemic of child obesity and it's comorbidities, he is currently involved in the development of protocols for adolescent bariatric surgery.

  • Bin Han

    Bin Han

    Clinical Professor, Radiation Oncology - Radiation Physics

    Current Research and Scholarly InterestsDevelopment of an advanced EPID-based dosimetric solution
    Ultrasound system for image guided prostate cancer treatment,
    Depth sensing and 3D-printing techniques for total body irradiation
    AI applications in predicting treatment effectiveness and cancer recurrence

  • May Han, MD

    May Han, MD

    Associate Professor of Neurology and Neurological Sciences (Adult Neurology)
    On Leave from 10/01/2024 To 04/30/2025

    Current Research and Scholarly InterestsMultiple sclerosis
    Neuromyelitis optica
    Autoimmune CNS disorders

  • Seunggu Jude Han, MD

    Seunggu Jude Han, MD

    Clinical Associate Professor, Neurosurgery

    BioDr. Han is a board-certified neurosurgeon with fellowship training in neuro-oncology. He is also a clinical associate professor in the Department of Neurosurgery at Stanford University School of Medicine and chief of neurosurgery at Palo Alto VA Medical Center.

    Dr. Han diagnoses and treats a wide range of conditions, including brain tumors, pituitary tumors, spinal tumors, and degenerative spinal disorders. He is passionate about caring for underserved populations, as well as educating and mentoring the next generation of neurosurgeons.

    Dr. Han’s academic and research interests include brain mapping, advancing diagnostic methods and treatments for brain tumors, and improving the quality of neurosurgical care. He has conducted several clinical trials to determine the safety and effectiveness of specific treatments for different tumors affecting the central nervous system.

    Dr. Han has published over 100 peer-reviewed articles in prestigious journals, including Neurology, Neurosurgery, Neuro-Oncology, and the Journal of Neurosurgery. He also serves as a reviewer for many professional publications.

    Dr. Han is a member of the American Association of Neurological Surgeons, the Congress of Neurological Surgeons, and the Society for Neuro-Oncology. He serves as an executive committee member and abstract reviewer for annual conferences in several of these organizations.

  • 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.

  • Philip C. Hanawalt

    Philip C. Hanawalt

    Dr. Morris Herzstein Professor in Biology, Emeritus

    Current Research and Scholarly InterestsMy current interest includes two principal areas:

    1. The molecular basis for diseases in which the pathway of transcription-coupled DNA repair is defective, including Cockyne syndrome (CS) and UV-sensitive syndrome (UVSS). Patients are severely sensitive to sunlight but get no cancers. See Hanawalt & Spivak, 2008, for review.

    2. Transcription arrest by guanine-rich DNA sequences and non-canonical secondary structures. Transcription collisions with replication forks.

  • Frank Hanley

    Frank Hanley

    Lawrence Crowley, M.D., Endowed Professor of Child Health

    Current Research and Scholarly InterestsHis research and clinical work focuses on the development of interventional techniques for fetal and neonatal treatment of congenital heart disease, pulmonary, vascular physiology, and the neurologic impact of open-heart surgery. He developed and pioneered the “unifocalization” procedure, in which a single procedure is used to repair a complex and life-threatening congenital heart defect rather than several staged open-heart surgeries as performed by other surgeons.

  • Maha Hanna

    Maha Hanna

    Clinical Assistant Professor, Pediatrics

    Current Research and Scholarly InterestsA bad latch means maternal excruciating pain, ineffective milk transfer with subsequent weight loss, hypoglycemia, higher risk of hyperbilirubinemia and dehydration fever.All of the above led to early cessation of breastfeeding; 46% of mothers who initiate exclusive breastfeeding stop within the first 12 weeks because of difficult latch. I developed a latch tutorial focusing on step-by step-in striations for achieving an effective, non-painful latch.

  • 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.

  • Sigurdis Haraldsdottir

    Sigurdis Haraldsdottir

    Member, Stanford Cancer Institute

    BioDr. Sigurdis Haraldsdottir, M.D., Ph.D. is an Assistant Professor of Medicine at Stanford University School of Medicine. She received her medical degree and master's degree in medical sciences from the University of Iceland. She did her Internal Medicine training at Boston University Medical Center and training in Medical Oncology at the Ohio State University, before joining the faculty at Stanford. Her clinical and research focus is in gastrointestinal malignancies with a focus on mismatch repair deficient cancers, particularly colorectal cancer. She is conducting population-based research on Lynch syndrome - an inherited cancer syndrome, and recently completed a nation-wide study on Lynch syndrome in Iceland. She received her Ph.D. in Medical Sciences in 2017 from the University of Iceland. Her interests also focus on investigating colorectal cancer genomics, and their effect on outcomes and treatment implications.

  • Pehr Harbury

    Pehr Harbury

    Associate Professor of Biochemistry

    Current Research and Scholarly InterestsScientific breakthroughs often come on the heels of technological advances; advances that expose hidden truths of nature, and provide tools for engineering the world around us. Examples include the telescope (heliocentrism), the Michelson interferometer (relativity) and recombinant DNA (molecular evolution). Our lab explores innovative experimental approaches to problems in molecular biochemistry, focusing on technologies with the potential for broad impact.