Petra Rasmussen

Petra Rasmussen
Associate Policy Researcher
Santa Monica Office


Ph.D. in health policy and management, University of California, Los Angeles; M.P.H. in health policy and management, Columbia University; B.A. in global health practices and policies, Duke University


Petra W. Rasmussen (she/her) is an associate policy researcher at RAND. Her research focuses on health care coverage in the United States, including examining consumer insurance decision-making, tracking the implementation and effects of the Affordable Care Act (ACA), and evaluating gaps in health care access and use. She has worked with the Centers for Medicare & Medicaid Services, analyzing data on the care provided to Medicare beneficiaries following procedures with global periods. She has conducted analyses using national, state, and private survey data, as well as large insurance enrollment and claims databases. In addition to her quantitative analysis expertise, Rasmussen is trained in mixed methods research and has conducted semi-structured interviews and program evaluations.

Prior to joining RAND, Rasmussen worked at the UCLA Center for Health Policy Research as a member of the California Simulation of Insurance Markets (CalSIM) microsimulation model team, which estimates the effects of the ACA and other coverage-related policies on insurance enrollment in California. She was previously a senior research associate at The Commonwealth Fund in New York City, where she managed a large survey portfolio, produced reports and issue briefs, and tracked and researched emerging policy issues regarding health reform and the comprehensiveness and affordability of health insurance coverage and access to care.

Rasmussen completed her Ph.D. in health policy and management at the UCLA Fielding School of Public Health. She also has a bachelor's degree from Duke University and an M.P.H. in health policy and management from Columbia University's Mailman School of Public Health.

Recent Projects

  • Easing Access to Public Funding for Transition-Age Foster Youth
  • Evaluation of the Social Determinants of Health Database for Patient-Centered Outcomes Research
  • Medicare Advantage: Quality Measures and Comparison with the Traditional Program
  • Quantifying the Resources Used in Furnishing Global Surgical Services
  • Evaluation of Los Angeles’ Health Pathways Expansion Program

Selected Publications

Anderson D, Rasmussen PW, Drake C, "Estimated Plan Enrollment Outcomes After Changes to US Health Insurance Marketplace Automatic Renewal Rules," JAMA Health Forum, 2(7), 2021

Rasmussen PW, Anderson D, "Estimated Plan Enrollment Outcomes After Changes to US Health Insurance Marketplace Automatic Renewal Rules," Milbank Quarterly, 2021

Rasmussen PW, Rice T, Kominski GF, "California’s New Gold Rush: Marketplace Enrollees Switch To Gold-Tier Plans In Response To Insurance Premium Changes," Health Affairs, 38(11), 2019

Rasmussen PW, Kominski GF, "Sources of Success in California’s Individual Marketplace Under the Affordable Care Act," Journal of Health Politics, Policy and Law, 44(4), 2019