Lee-Lee Ellis

Lee-Lee Ellis

  • Program and Policy Evaluation
  • Implementation Research
  • Qualitative Methods
  • Patient and Stakeholder Engagement
  • Social Determinants of Health
  • Primary Care Redesign and Transformation
  • Learning Systems
Focus Areas
  • Health
  • Delivery System Reforms
  • Population Health
About Lee-Lee

Lee-Lee Ellis is a health researcher who specializes in mixed-methods evaluations of service delivery reforms. She has methodological expertise in designing and leading qualitative research to support implementation evaluations and in synthesizing data with quantitative impact findings to characterize program effects. She is a subject matter expert in patient engagement and primary care transformation.

Currently, Ellis serves on the team evaluating the Center for Medicare & Medicaid Innovation’s (CMMI) Comprehensive Primary Care Plus initiative, a large-scale, multipayer initiative to transform primary care delivery. Ellis leads the development of case studies and other written products to support the learning system and technical assistance activities for CMMI’s Accountable Health Communities Model, which connects clinical care with social determinants of health. In addition, she recently led the implementation evaluations of two programs funded by the second round of the Health Care Innovation Awards, which aimed to improve care, improve health, and lower costs for Medicare and Medicaid beneficiaries.

Ellis joined Mathematica in 2015. Her work has been published in peer-reviewed journals, including the Journal of General Internal Medicine, Journal of Comparative Effectiveness Research, and American Journal of Critical Care. She holds a Ph.D. in health policy and bioethics from the Johns Hopkins Bloomberg School of Public Health and an M.A. in bioethics from New York University Graduate School of Arts and Sciences.

Key Projects