Geoffrey J. Hoffman, PhD, MPH

Geoffrey Hoffman

Assistant Professor
Department of Systems, Populations and Leadership
Room 4352

University of Michigan School of Nursing
400 North Ingalls Building
Ann Arbor, MI 48109-5482

Telephone: (734) 764-8248


  • Older adults
  • Falls
  • Formal and informal caregiving
  • Hospital readmissions
  • Disparities in health and access to healthcare

Dr. Hoffman is a health services researcher with interests in older adult health and the Medicare program. His research focuses on older adults falls, informal and formal caregiving, and hospital readmissions. His work on falls assesses how different research methodologies impact fall prevalence and Medicare expenditure estimates and how caregiving reduces fall risk among disabled and cognitively impaired older adults. His work has been published in leading journals such as Medical Care, Health Services Research, and The Gerontologist. Dr. Hoffman is also interested in examining peer effects on health outcomes in spousal households, with implications for care management approaches for older adults.


Dr. Hoffman teaches a course on health policy and health program planning, implementation, and evaluation, and has guest lectured on health care financing to graduate level students. He has also mentored graduate students in the School of Nursing.

Affiliations / Service

  • Member, AcademyHealth, 2010-present
  • Member, American Public Health Association, 2010-present

Notable Awards / Honors

  • James G. Zimmer New Investigator Award from the Aging & Health Section of the American Public Health Association, 2017
  • Honorable Mention, James G. Zimmer New Investigator Award from the Aging & Health Section of the American Public Health Association, 2013
  • AcademyHealth Public Health Systems Research Scholarship, 2013


  • PhD, UCLA Fielding School of Public Health, 2015
  • MPH, UCLA Fielding School of Public Health, 2008
  • BA, Harvard University, Cambridge, MA 1994

Publication Highlights

  • Hoffman GJ, Hoffman JR, (in press) "Cost-Sharing Isn’t the Answer - The Overwhelming Case Against ‘Skin in the Game.’” Canadian Journal of Emergency Medicine.

  • Hoffman GJ, Hays RD, Wallace SP, Shapiro MF, Yakusheva O, Ettner SL. Receipt of Caregiving and Fall Risk in US Community-Dwelling Older Adults. Med. Care. 2016;55(4):371-378.

  • Hoffman, G. J., Hays, R. D., Shapiro, M. F., Wallace, S. P., & Ettner, S. L. (2016). The costs of fall-related injuries among older adults: Annual per-faller, service component, and patient out-of-pocket costs. Health Services Research. 

  • Hoffman, G. J., Hays, R. D., Shapiro, M. F., Wallace, S. P., & Ettner, S. L. (2016). Claims-based identification methods and the cost of fall-related injuries among US older adults. Medical Care, 54(7), 664-671.

  • Hoffman, G. J., & Rodriguez, H. P. (2015). Examining contextual influences on fall-related injuries among older adults for population health management. Popul Health Manag, 18(6), 437-448. 

  • Hoffman, G. (2015). Cost-sharing, physician utilization, and adverse selection among Medicare beneficiaries with chronic health conditions. Medical Care Research and Review, 72(1), 49-70. 

  • Chung, P. J., Lui, C. K., Cowgill, B. O., Hoffman, G., Elijah, J., & Schuster, M. A. (2012). Employment, family leave, and parents of newborns or seriously ill children. Academic Pediatrics, 12(3), 181-188.

  • Hoffman, G. J., Lee, J., & Mendez-Luck, C. A. (2012). Health behaviors among baby boomer informal caregivers. The Gerontologist, 52(2), 219-230.

  • Hoffman, G. J., & Mendez-Luck, C. A. (2011). Stressed and strapped: Caregivers in California. Policy Brief UCLA Cent Health Policy Res.

  • Tilson S., Hoffman, G.J., Report to Congress: Addressing Medicare Hospital Readmissions. Washington, DC: Congressional Research Service, May 25, 2012

  • Stone J, Hoffman GJ. Report to Congress: Medicare Hospital Readmissions: Issues, Policy Options and PPACA. Washington, DC: Congressional Research Service, September 21, 2010