George Mason University
George Mason University Mason
George Mason University

Gilbert Gimm, PhD

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Dr. Gimm, associate professor of health administration and policy, has research experience in program evaluations, disability and aging, care coordination models, and health care payment reforms. Currently, Dr. Gimm serves as a co-investigator on a grant from the National Institute on Disability, Independent Living, and Rehabilitation Research (NIDILRR) to study the effects of health care reform on access to care and services for adults with disabilities.  

Previously, Dr. Gimm was a senior researcher at Mathematica Policy Research in Washington, DC, where he conducted evaluations for the Centers for Medicare & Medicaid Services (CMS) of the Medicaid Buy-In program and impacts of early interventions on the receipt of federal disability benefits for adults with mental health conditions. He also examined the financial performance of rural hospitals in response to Medicare payment reforms. His research has been published in several journals, including the American Journal of Public Health, Disability and Health Journal, Health Affairs, and Health Services Research. Dr. Gimm's other research interests include the effect of malpractice claims on physician practice patterns and the extent to which care coordination models improve cost and quality.

Community Service

  • Chair, National Advisory Committee, Disability Research Interest Group, AcademyHealth, 2014-2017
  • Board of Directors, Treasurer, Federal Aviation Administration (Department of Transportation): Child Development Center, Washington, DC, 2010-current



PhD, Health Economics and Policy, University of Pennsylvania (2005)

MBA, Health Care Management, University of Pennsylvania (1999)

BA, Economics, Harvard University (1992)


Research Interests

  • Medicaid program evaluations
  • Aging/Disability research
  • Chronic care coordination & Health care financing 


Craver G, Gimm G, Hill K. (2018, in press). “Understanding Care Coordination Experiences in a State Medicare-Medicaid Financial Alignment Demonstration.” Journal of Health and Human Services Administration

Henning-Smith C, Gimm G. (2018).  “The Relationship between Employment, Gender, and Living Arrangements for Working-Age Adults with Disabilities.”  Journal of Vocational Rehabilitation, 48(3): 393-401.

Gimm G, Wood E, Zanwar P. (2017). “Access to Preventive Services for Working-Age Adults with Physical Limitations.” Archives of Physical Medicine and Rehabilitation, 98(12): 2442-2448.

Gimm G, Want J, Hough D, Polk T, Rodan M, Nichols LM. (2016). “Medical Home Implementation in Small Primary Care Practices:  Provider Experiences and Perspectives.”  Journal of the American Board of Family Medicine, 29(7): 767-774. 

Gimm G, Chowdhury S, Castle N. (2016). “Resident Aggression and Abuse in Assisted Living Facilities.” Journal of Applied Gerontology.

Cuellar A, Helmchen L, Gimm G, Want J, Burla S, Kells B, Kicinger I, Nichols LM. (2016). “The CareFirst Patient-Centered Medical Home Program: Cost and Utilization Effects in Its First Three Years.”  Journal of General Internal Medicine, 31(11): 1382-1388.  

Gimm, G. & Kitsantas, P. (2016). Falls, Depression, and Other Hospitalization Risk Factors for Adults in Residential Care Facilities. International Journal of Aging and Human Development, 83(1), 44-62.

Gimm, G. & Yang, Y.T. (2016). The Effect of Paid Leave Laws on the Mental Health of Family Caregivers of the Elderly. Ageing International, 41(2), 214-226.

Gimm, G., Blodgett, E., & Zanwar, P. (2016). Examining Access to Care for Younger vs. Older Dual-Eligible Adults Living in the Community. Disability and Health Journal, 9(3), 431-438.

Kennedy, J., Gimm, G. & Glazier, R. (2016). After CLASS – Is a voluntary public insurance program a realistic way to meet the LTSS needs of adults with disabilities? Disability and Health Journal, 9(2), 197-200.

Gimm, G. & Nichols, L.M. (2015). Ebola Crisis of 2014: Are Current Strategies Enough to Meet the Long-Run Challenges Ahead? American Journal of Public Health, 105(5), e8-e10.

Gimm, G., Kitsantas, P., Cantiello J & Carle A. (2014). Resident Characteristics and Chronic Health Conditions in Assisted Living Communities. Seniors Housing & Care Journal, 22(1), 82-96.

Gimm, G., Hoffman, D., & Ireys, H.T. (2014). Early Interventions to Prevent Disability for Workers with Mental Health Conditions: Impacts from the DMIE. Disability and Health Journal, 7(1), 56-63.

Yang, Y.T. & Gimm, G. (2013). Caring for Elder Parents: A Comparative Evaluation of Family Leave Laws. Journal of Law, Medicine, and Ethics, 41(2), 501-513.

Kennedy, J., Gimm, G. & Blodgett, E. (2013). Return to Work: a Critical Aspect of Care Coordination for Younger Dual Eligibles. Disability and Health Journal, 6(2), 95-99.

Gimm, G., Ireys, H.T., Gilman, B., & Croake, S. (2011). Impact of Early Intervention Programs for Working Adults with Potentially Disabling Conditions: Evidence from the National DMIE Evaluation. Journal of Vocational Rehabilitation, 34(2), 71-81.

Gimm, G. (2010). The Impact of Malpractice Liability Claims on Obstetrical Practice Patterns. Health Services Research, 45(1), 195-211.

Ireys, H.T., Gimm, G., & Liu, S. (2009). The Effects of State Policy Decisions on the Employment and Earnings of Medicaid Buy-In Participants in 2006. Journal of Disability Policy Studies, 20(3), 142-154.

Felt-Lisk, S., Gimm, G., & ,Peterson S. (2007). Making Pay-for-Performance Work in Medicaid. Health Affairs, 26(4), w516-w527.

Burns, L., Gimm, G., & Nicholson, S. (2005). The Financial Performance of Integrated Health Organizations (IHOs). Journal of Healthcare Management, 50(3), 191-213.


"Research Grant for the Collaborative on Health Reform and Independent Living," U.S. Department of Health and Human Services, Administration for Community Living, National Institute for Disability, Independent Living, and Rehabilitation Research (NIDILRR).  Kennedy (Principal Investigator), September 2015-September 2020. Role: Co-Investigator and Consultant. $2,493,892.

"Contract for the Evaluation of the CareFirst Blue Cross Blue Shield Patient-Centered Medical Home Program," CareFirst Blue Cross Blue Shield. Nichols (Principal Investigator), January 2013-December 2017. Role: Co-Principal Investigator and Deputy Director. $5,399,385.

"Grant for the Dual Demonstration Evaluation Tailored for Virginia," Virginia Department of Medical Assistance Services. Cuellar (Principal Investigator), March 2014-December 2016. Role: Co-Investigator. $250,000.

"Grant on Quality of Life Indicators for Residents in Assisted Living Communities," Assisted Living Federation of America. Gimm (Principal Investigator); Kitsantas, Cantiello, Carle (Co-Investigators), October 2012-January 2014. Role: Grant Principal Investigator. $96,821.

"Grant on The Effect of Paid Leave Policies on Family Caregivers for the Elderly: Evidence from State Laws," The Borchard Foundation on Law and Aging. Gimm (Principal Investigator); Yang (Co-Investigator), January 2012-January 2013. Role: Principal Investigator. $20,000.

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