Stanford University


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  • Earth Hasassri, MD

    Earth Hasassri, MD

    Adjunct Clinical Assistant Professor, Psychiatry and Behavioral Sciences - Child & Adolescent Psychiatry and Child Development

    BioDr. Earth Hasassri is an Adjunct Clinical Assistant Professor in the Department of Psychiatry and Behavioral Sciences, Division of Child and Adolescent Psychiatry and Child Development at Stanford University School of Medicine. He has a private practice in Menlo Park and teaches medical students, residents, and fellows at Stanford University School of Medicine. In his private practice, he specializes in seeing children and adults with complex psychiatric conditions such as ADHD, autism spectrum disorders, functional neurological disorders, those with epilepsy, and other neuropsychiatric conditions. His interests are caring for individuals who suffer from medical conditions at the interface of medicine and psychiatry.

    Prior to medical school, Dr. Hasassri graduated with dual bachelor's degrees in neurophysiology and psychology at the University of California San Diego, where he performed research on sleep medicine. He earned his medical degree from the Mayo Clinic Alix School of Medicine where he did research in clinical epidemiology. Dr. Hasassri completed his residency in general psychiatry at the University of California San Francisco Langley Porter Psychiatric Hospitals & Clinics, during which he was awarded an Area of Distinction in Clinical Neuroscience for his work in applying neuroscientific principles in his clinical work in those with brain cancer, dementia, neurodevelopmental disorders, and other neuropsychiatric conditions. Dr. Hasassri is dual board certified in adult psychiatry and in child and adolescent psychiatry through the American Board of Psychiatry and Neurology, a member Board of the American Board of Medical Specialties.

  • Nancy A. Haug

    Nancy A. Haug

    Adjunct Clinical Professor, Psychiatry and Behavioral Sciences

    BioNancy A. Haug, PhD is Adjunct Clinical Professor and Addiction Medicine fellowship program faculty in the Department of Psychiatry and Behavioral Sciences at Stanford University School of Medicine. She currently leads didactics and a journal club for Addiction Medicine fellows, and teaches a postdoctoral seminar on ethics and legal issues for the Clinical Psychology Fellowship Program. Dr. Haug's primary academic affiliation is Professor of Psychology at Palo Alto University, where she teaches, advises and supervises doctoral students in the PAU-Stanford PsyD Consortium. Dr. Haug previously served as faculty and attending psychologist in the Department of Psychiatry at the University of California San Francisco, and taught in the University of California, Berkeley Alcohol & Drug Studies program. She obtained her PhD in Clinical Psychology and Behavioral Medicine at the University of Maryland, Baltimore County and a Master's degree in Counseling Psychology at Loyola University, Maryland. She completed a clinical internship and postdoctoral fellowship at University of California, San Francisco and San Francisco General Hospital in public service and minority mental health.

    Dr. Haug chairs the American Psychological Association (APA) Ethics Committee and formerly served on the California Psychological Association Ethics Committee. She is a Fellow, Member-at-Large for Practice, and President- Elect of the Society of Addiction Psychology (Division 50). Dr. Haug is on the editorial board of the Journal of Psychoactive Drugs and the Journal of Addictive Diseases. She was funded by SAMHSA for a practitioner-education initiative to expand training for evidence-based addiction treatment. Dr. Haug leads the Harm Reduction and Addiction Treatment Laboratory at PAU with current research studies on the implementation of evidence-based practices in addiction treatment, harm reduction for substance use, cannabis vaping and psychedelic-assisted psychotherapy.

    Dr. Haug has been licensed as a psychologist in California since 2004, is board certified in addiction psychology by American Board of Professional Psychology, and has an independent practice in Los Gatos, CA. She has clinical expertise in treating substance misuse and eating disorders using motivational interviewing, cognitive-behavioral and mindfulness-based therapies including Acceptance and Commitment Therapy. Dr. Haug is a Stanford WellConnect referral for fellows, residents and faculty in her clinical practice. She completed the Stanford YogaX 200-Hour Yoga Teacher Training Program with healthcare setting emphasis.

  • John Lyon Havlik

    John Lyon Havlik

    Postdoctoral Medical Fellow, Psychiatry
    Resident in Psychiatry and Behavioral Sciences

    BioHello! I'm the inaugural Humanities and Social Medicine research track resident at Stanford University.

    Psychiatric and substance use disorders are usually caught only after substantial, sometimes irreparable, harm has already occurred. My work is about changing that: I build artificial intelligence models that identify people earlier, and I evaluate whether the systems that receive them, like health plans, treatment facilities, and now generative AI chatbots, are equipped to respond appropriately. I believe this kind of early intervention will one day be commonplace and prevent a great deal of human suffering.

    On the building side, I'm technical lead and first author on a supervised model that detects substance use disorders from EHR-like data, currently in press at Nature Mental Health; related work uses multimodal data to flag who will go on to develop opioid use disorder and to predict imminent psychiatric emergency-department visits. I also co-authored a Nature Medicine paper on how to rigorously test the true capabilities of medical AI. I work across a wide range of deterministic and probabilistic methods, including the transformer architectures behind modern "chatbots." My work has been featured in 40+ peer-reviewed publications and featured in national news outlets.

    In production, spinout AI-enabled clinical workflow automation software I developed is in use at the U.S. Department of Veterans Affairs and here at Stanford. The aim of my work is to move advances in artificial intelligence out of publications and into the clinic.

    On the evaluating side, I serve as an expert reviewer of AI-in-medicine trials for the State of Utah's Office of Artificial Intelligence Policy, and I am a sought-after health-tech advisor for Silicon Valley's leading venture capital firms and companies. I write on psychiatric services and health policy, recently in JAMA Health Forum on private-equity residential treatment and JAMA Network Open on the economics of telemedicine "house calls". Alongside my research, I founded and lead Research Roundtable, a mentorship group whose undergraduates have published 10+ first-author papers. Before medicine, with Peggy Mason at UChicago, I found the human bystander effect in rats (Science Advances).