Matthew Kehn

Matthew Kehn

Senior Researcher
  • Social determinants of health
  • Service integration, access to care, and care coordination
  • Program implementation
Focus Areas
  • Health
  • Disability
  • Medicaid and CHIP
  • Human Services
About Matthew

Matt Kehn studies Medicaid programs and initiatives that support underserved populations and people with disabilities. His expertise includes efforts to address the social determinants of health and improve access to care and care coordination, and policies to improve service delivery and system integration.

Kehn’s current projects focus on supporting the implementation of federal and state programs that seek to improve health outcomes and reduce health care costs by addressing the social needs of Medicare and Medicaid beneficiaries. He directs Mathematica’s contract with the Centers for Medicare & Medicaid Services (CMS) to provide implementation support and technical assistance for the Accountable Health Communities (AHC) Model. AHC seeks to screen Medicare and Medicaid beneficiaries for social needs, such as housing instability and food insecurity, then connect those individuals to community services. Kehn advises on several other Mathematica projects that support CMS’s efforts to improve quality through cross-sector coordination. He led the implementation evaluation of the Non-Elderly Disabled Category Two Housing Choice Voucher Program, and the CMS Real Choice Systems Change Grant for Building Sustainable Partnerships for Housing. He also served as deputy project director for a case review of state initiatives funded by the U.S. Department of Health and Human Services’ Assistant Secretary for Planning and Evaluation. These initiatives aimed to improve the coordination of housing and health services for individuals with behavioral health conditions. Kehn has helped CMS identify measures to gauge progress in expanding housing-related supports to Medicaid beneficiaries with long-term care needs, and to determine whether such measures could be developed for broad use.

Before joining Mathematica in 2010, Kehn held various research positions at the MedStar Health Research Institute. He holds an M.P.P. from the School of Public Administration at American University.

Key Projects
  • worker wearing hard hat in wheelchair
    Medicaid Buy-In Program

    The Medicaid Buy-In program allows adults with disabilities to earn more than would otherwise be possible and still have Medicaid coverage. In return, participants “buy into” the Medicaid program, typically by paying premiums based on income. To assist CMS in monitoring the program, Mathematica has developed...

  • HCIA Evaluations: Behavioral Health/Substance Abuse

    Mathematica evaluated the impacts of projects implemented by the 10 HCIA awardees focused on mental health and substance abuse services. These awardee demonstrations addressed a wide array of interventions and targeted different subgroups within this broad priority population.