Benjamin H. Han, MD, MPH
University of California San Diego, Department of Medicine, Division of Geriatrics and Gerontology - Assistant Professor
MD, State University of New York - Syracuse
MPH, Johns Hopkins School of Public Health
BA, English, Wesleyan University
Research Interests
Geriatrics, Methadone, Health disparities, Substance use
Benjamin Han is a geriatrician and health services researcher in the Division of Geriatrics and Gerontology, Department of Medicine at UC San Diego. His research focuses on unhealthy substance use among older adults, and caring for adults with multiple chronic conditions in opioid treatment programs.
Principal Investigator, Chronic Disease and Health Outcomes of Older Adults with Opioid Use. Active
Principal Investigator, Measuring Social Isolation, Loneliness, and Intersectional Stigma among Older Adults with Opioid Use Disorder. Active
Principal Investigator, Geriatric Conditions and Functional Status in Middle-Aged and Older Adults with Opioid Dependence. Completed


Han BH, Brennan JJ, Orozco MA, Moore AA, Castillo EM (2023).
Trends in emergency department visits associated with cannabis use among older adults in California, 2005-2019
Journal of the American Geriatrics Society, 71 (4), 1267-1274. doi: 10.1111/jgs.18180. PMCID: PMC10089945.

Kepner WE, Han BH, Nguyen D, Han SS, Lopez FA, Palamar JJ (2023).
Past-month binge drinking and cannabis use among middle-aged and older adults in the United States, 2015-2019
Alcohol, 107, 32-37. doi: 10.1016/j.alcohol.2022.07.006. PMCID: PMC9933134.

Han BH, Han SS, Palamar JJ (2023).
Binge drinking among adults with hypertension in the USA, 2015-2020
Journal of General Internal Medicine, 38 (1), 257-259. doi: 10.1007/s11606-022-07754-4. PMCID: PMC9849520.

Yang KH, Han BH, Moore AA, Palamar JJ (2022).
Trends in major depressive episodes and mental health treatment among older adults in the United States, 2010-2019
Journal of Affective Disorders, 318, 299-303. doi: 10.1016/j.jad.2022.09.007. PMCID: PMC9530028.

Kaufmann CN, Malhotra A, Yang KH, Han BH, Nafsu R, Lifset ET, Nguyen K, Sexton M, Moore AA (2022).
Cannabis use for sleep disturbance among older patients in a geriatrics clinic
International Journal of Aging and Human Development [Epub 2022 Oct 13]. doi: 10.1177/00914150221128971. PMCID: PMC10097827.

Dr. Han's MyBibliography Profile
Selected Press