School of Medicine
Showing 541-560 of 1,239 Results
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Makoto Kawai
Clinical Professor, Psychiatry and Behavioral Sciences - Sleep Medicine
BioI am a physician scientist in the field of sleep medicine in aging and brain function. Using combined polysomnogram and novel neuroimaging technology, I aim to identify potential sleep biomarkers to investigate the mechanism of progression from normal aging to Mild Cognitive Impairment (MCI) or dementia. I also investigate the impact of sleep on cognitive/affective function or behavior abnormality in various neurodevelopmental and neurodegenerative disorders.
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Debra Lee Kaysen
Professor of Psychiatry and Behavioral Sciences (Public Mental Health and Population Sciences)
Current Research and Scholarly InterestsMuch of my current research focus is on the development of testing of accessible, scaleable, and effective treatments for trauma-related disorders and related comorbidities (e.g. substance use disorders, HIV, mood disorders). This work has focused on addressing trauma-related disorders especially in underserved populations and settings. This includes research in rural communities, with Native American communities, and with sexual minorities. My research has had a strong impact on building an evidence base on adaptations of psychotherapies for PTSD and substance use disorders for diverse populations both within and outside the United States. Our findings demonstrate that complex cognitive behavioral psychotherapies like Cognitive Processing Therapy can be culturally adapted and delivered in challenging settings (conflict settings, high poverty environments) with significant and lasting change in PTSD, depression, and functioning. This has led to work adapting CPT for diverse populations within the United States (rural Native Americans, urban Latinos) and outside of it (Iraq, DRC). Other research has focused on treatment for PTSD/SUD. My research has also found support for the use of brief telehealth interventions to build treatment engagement and to reduce drinking among trauma-exposed populations. In addition, my work has been critical in testing the feasibility of novel trauma-focused interventions for use by those with PTSD and SUD, thus paving the road for more rigorous research studies.
Current PI'ed research studies include: 1) developing and evaluating a brief motivational interviewing intervention designed to increase treatment-seeking among military personnel with untreated PTSD; a two-arm randomized comparative effectiveness trial to evaluate prevention of HIV/STI sexual risk behavior by addressing PTSD through Narrative Exposure Therapy or substance use through Motivational Interviewing among Native American men and women with PTSD; and 3) a comparison of outcomes among patients randomized to initially receive pharmacotherapy or Written Exposure Therapy delivered in primary care as well as comparing outcomes among patients randomized to treatment sequences (i.e., switching and augmenting) for patients who do not respond to the initial treatment. -
Corey Keller, MD, PhD
Associate Professor of Psychiatry and Behavioral Sciences (Public Mental Health and Population Sciences)
Current Research and Scholarly InterestsThe goal of my lab is to understand the fundamental principles of human brain plasticity and build trans-diagnostic real-time monitoring platforms for personalized neurotherapeutics.
We use an array of neuroscience methods to better understand the basic principles of how to create change in brain circuits. We use this knowledge to develop more effective treatment strategies for depression and other psychiatric disorders. -
Jennifer Keller
Clinical Professor, Psychiatry and Behavioral Sciences
Current Research and Scholarly Interestsinterpersonal violence and abuse prevention; empowerment of women; cognitive and affective information processing in depression; clinical, biological, and neuropsychological aspects of depression; South Asian mental health
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Kevin Kelley
Assistant Professor of Psychiatry and Behavioral Sciences (General Psychiatry and Psychology)
BioAs a neuroscientist and psychiatrist, I am motivated by how little we understand about the pathophysiology of psychiatric disorders and hope that further knowledge will help to alleviate the ongoing distress of many of our patients. My research program leverages computational genomics, human brain cellular models, and molecular neuroscience techniques to understand the cellular and molecular mechanisms of human brain development and how dysfunction in these processes lead to psychiatric disorders.
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Wayne Kepner
Postdoctoral Scholar, Psychiatry
BioWayne Kepner, PhD, MPH is a public health researcher whose work examines how addiction treatment systems can be organized to support long-term recovery. He is an Instructor in the Department of Psychiatry and Behavioral Sciences at Stanford University School of Medicine, where he holds a NIDA Mentored Research Scientist Development Award (K01DA067040) as principal investigator. The award funds a five-year study of how medications for opioid use disorder and mutual help groups fit together in addiction treatment, along with development of a user-centered intervention to bridge the two. Dr. Keith Humphreys serves as his primary mentor and Dr. Mark McGovern as co-mentor. Dr. Kepner joined the Stanford faculty in 2026 after completing the school's NIDA T32 postdoctoral fellowship in Pain and Substance Use.
Dr. Kepner received his doctoral degree from the Joint Doctoral Program in Interdisciplinary Research on Substance Use at San Diego State University and the University of California, San Diego, and he holds an MPH from San Diego State University. His doctoral research addressed substance use disorders, health services utilization, and geospatial analysis of health data, with particular attention to older adult populations. Across more than thirty peer-reviewed publications, he has studied the implementation of low-threshold opioid treatment, emergency department utilization for substance-related diagnoses, national trends in stimulant and cannabis use, and harm reduction for older adults in opioid treatment programs. He works in both qualitative and quantitative traditions, with interviews of people who use drugs alongside analyses of large electronic health record and national survey datasets. Journalists at the Washington Post, CNN, and Forbes have covered his research, and the Urban Institute cited his work on stigma in its analysis of Oregon's Measure 110.
Alongside his academic work, Dr. Kepner maintains an active commitment to recovery communities and community-based organizations. He co-founded Aztecs For Recovery, the collegiate recovery program at San Diego State University, and he now advises SMART Recovery USA and Narcotics Anonymous World Services on research. He also serves on the board of the Asian American Drug Abuse Program, where he advises the implementation of a $20 million state grant to expand behavioral health services for Asian American and Pacific Islander communities. -
Steve Khachi, M.D.
Adjunct Lecturer, Psychiatry and Behavioral Sciences - Child & Adolescent Psychiatry and Child Development
BioDr. Steve Khachi is a double-board-certified psychiatrist specializing in child, adolescent, and adult psychiatry. He is the Founder and Medical Director of the Mind Study Center in Pasadena, California—an integrated mental health clinic offering psychotherapy, medication management, neuropsychological evaluations, and transcranial magnetic stimulation (TMS). His clinic emphasizes interdisciplinary collaboration, clinical excellence, and innovation in care delivery.
Dr. Khachi serves as Adjunct Clinical Faculty at both Stanford University and the University of Southern California (USC), where he teaches and supervises child psychiatry fellows and residents. He is passionate about education and mentorship, and is committed to advancing the next generation of clinicians.
Dr. Khachi completed his Child and Adolescent Psychiatry Fellowship at Stanford University, where he served as Chief Fellow. He completed residency in General Psychiatry at UC San Diego, received his medical degree from the University of Wisconsin School of Medicine and Public Health, and earned his B.S. in Biochemistry–Molecular Biology from UC Santa Barbara. His additional training includes research fellowships at UCSF and the NIH/Howard Hughes Medical Institute. -
Christina Khan, MD, PhD
Clinical Professor, Psychiatry and Behavioral Sciences
BioDr. Christina Khan is a pediatric and adult psychiatrist and Clinical Professor in the Department of Psychiatry and Behavioral Sciences. She specializes in the treatment of trauma, depression, anxiety, LGBTQ+ health, and physician wellness. Dr. Khan’s training includes doctoral and postdoctoral research training in community and public health, including specialized training in global health and PTSD research and treatment. Her work focuses on addressing health disparities in underserved populations and treating vulnerable and marginalized populations here in the United States and abroad.
At Stanford, she is co-Chief of the Diversity and Cultural Mental Health Section in the Department of Psychiatry and Behavioral Sciences and founder and Director of THRIVE, Stanford's LGBTQ+ mental health clinic. She has been working with WellConnect since 2014 addressing burnout, trauma, and secondary trauma in Stanford physicians. Dr. Khan is also a Faculty Fellow at the Center for Innovation in Global Health (CIGH) and serves on the CIGH Program Leadership Committee.
Nationally, Dr. Khan serves as Past President of the Association of Women Psychiatrists and as Councilor for the Council on Minority Mental Health and Health Disparities of the American Psychiatric Association.
