Director, Gehr Family Center for Health Systems Science and InnovationAssociate Professor of Medicine (with Tenure), Keck School of Medicine of USC
Health economist studying insurance design, Medicare policy, and health outcomes.
Gehr Family Center for Health Systems Science
USC Schaeffer Center for Health Policy
Keck School of Medicine of USC
Health economist dedicated to improving healthcare through rigorous research
Dr. Cameron Kaplan is Director of the Gehr Family Center for Health Systems Science and an Associate Professor of Medicine (with Tenure) at the USC Keck School of Medicine, with research and teaching that address insurance design, Medicare policy, and health policy in California, including Medi-Cal and safety-net systems. He is also a Senior Scholar at the USC Schaeffer Center for Health Policy & Economics.
His research program focuses on understanding how health policy and insurance benefit design affect healthcare utilization, health outcomes, and disparities. Dr. Kaplan employs sophisticated econometric methods to analyze large healthcare datasets, evaluating the real-world impacts of policy changes on vulnerable populations.
Dr. Kaplan's current research portfolio includes NIH-funded studies examining COVID-19's impact on disparities in preventive care access and the health impacts of opioids on hospitalized infants. His work has been published in leading journals including Health Affairs, JAMA Network Open, Health Economics, and Annals of Internal Medicine.
Prior to joining USC in 2018, Dr. Kaplan was on faculty at the University of Tennessee Health Science Center. He earned his BA in Economics from Brandeis University (2005), his PhD in Economics from UC Santa Barbara (2011), and completed postdoctoral training at the University of Pittsburgh.
How the design of coverage determines who gets care
How deductibles, coinsurance, coverage phases, and plan structure change what people actually use, including work on high-deductible plans, health savings accounts, and the financial burden carried by adults with chronic conditions.
Long-running work on how Part D benefit design affects medication use, adherence, and discontinuation, including the closure of the coverage gap, the January reset in cost sharing, and which drugs and patients respond most to price changes.
How state insurance regulations govern access to Medigap supplemental coverage outside the initial enrollment window, and what that means for beneficiaries facing high cost sharing without an annual limit.
Enrollment churn, transitions between coverage types, and how those transitions change out-of-pocket costs and care use, with a focus on California and on alternative payment models in Medicaid.
Primary, preventive, and cancer screening care in county health systems and federally qualified health centers, including how access was disrupted, how it recovered, and what determines whether coverage translates into care.
ACA marketplace tobacco premium surcharges and how subsidy design amplifies them, state limits on surcharges and their enrollment effects, and the reach of local flavor and smoke-free policies.
Peer-reviewed research in health policy, health economics, and health services research
Explaining the design details that decide who gets care
Insurers may charge tobacco users up to 50 percent more, and most charge considerably less than that. Tobacco users nevertheless face worse affordability, because marketplace subsidies are calculated before the surcharge is applied.
MedicarePart D changes a beneficiary's out-of-pocket price discontinuously through the year and resets each January. Beneficiaries anticipate those changes, though less completely than standard theory would predict.
MedicareTraditional Medicare places no annual limit on out-of-pocket costs. Access to a Medigap policy once the initial enrollment window has closed is governed almost entirely by state law.
Health systems research on the quality, value, and equity of care
The Gehr Family Center for Health Systems Science and Innovation builds the evidence base for equitable access to high-quality health care. We apply health economics, health policy, and access research to real delivery systems, with established strength in the safety net and a lens that applies just as directly to improving care for all patients.
Economics, policy, and access methods applied to questions delivery systems actually face, including coverage and cost sharing, care access and continuity, payment model design, and the measurement of disparities in real patient populations.
Sustained research relationships with Los Angeles County health services, federally qualified health centers, and Medicaid managed care organizations, grounded in the systems that care for dual-eligible, uninsured, and underserved populations.
An annual summer research program pairing students with faculty mentors, built around six weeks of intensive training in health systems research methods, followed by mentored work on active studies.
Common questions about my research, methods, and availability
I am a health economist, and my research asks how the design of health insurance affects whether people can actually get and afford care. That work spans Medicare prescription drug benefit design and the Part D coverage gap, state regulation of Medigap supplemental coverage, Medicaid and Medi-Cal enrollment and cost sharing, ACA marketplace premium subsidies and tobacco surcharges, and access to primary and preventive care in safety-net health systems.
A recurring theme across all of it: coverage on paper does not guarantee access in practice, and the details of benefit design usually determine who gets left out.
Mostly large administrative and claims datasets, including Medicare claims, all-payer claims databases, California Health Care Payments Data, electronic health record data from safety-net systems, and national survey data such as the Current Population Survey.
Methodologically I work in applied microeconometrics and quasi-experimental policy evaluation: difference-in-differences designs, instrumental variables, and cost-effectiveness analysis. Most of my identification strategies exploit either variation in state policy or discrete changes in federal benefit rules.
It is a research center at the Keck School of Medicine of USC that I have directed since 2023. The center builds the evidence base for equitable access to high-quality health care, applying health economics, policy, and access research to real delivery systems. Its established strength is in safety-net settings, including Los Angeles County health services, federally qualified health centers, and Medicaid managed care.
The center also runs an annual summer research program that places students with faculty mentors alongside six weeks of intensive research training.
My current NIH-funded work is an NIMHD U01, for which I am principal investigator, examining how COVID-19 mitigation efforts affected access to routine preventive care and chronic disease management in safety-net settings.
I am also involved in ongoing collaborative work on opioid exposure and outcomes among hospitalized infants, and on medication adherence and care transitions in low-income populations. Beyond currently funded projects, my continuing research interests include the regulation of Medicare supplemental coverage and the effects of coverage transitions in Medicaid.
Yes. I welcome research collaboration, and I am glad to hear from journalists and policy organizations working on health insurance design, Medicare and Medicaid policy, prescription drug coverage, and access to care in safety-net systems.
The best way to reach me is [email protected].
A complete list of my 51 peer-reviewed publications is on Google Scholar and in my ORCID record (0000-0001-6430-6816). My current CV is available here as a PDF.
Open to research collaboration, and to media and policy inquiries
Gehr Family Center
2250 Alcazar St, CSC 261
Los Angeles, CA 90089