Erin Lindsey Duffy

Photo of Erin Duffy
Adjunct Policy Researcher
Off Site Office


Ph.D. in policy analysis, Pardee RAND Graduate School; M.P.H. in biostatistics and epidemiology, Boston University; B.A., Wellesley College


Erin Duffy is an adjunct policy researcher at the RAND Corporation. She is also a research scientist at the Leonard D. Schaeffer Center for Health Policy and Economics at the University of Southern California. 

Her research explores cost-drivers, market failures, and patients' finanicial liability in the American health care system. Duffy's recent work measures the prevalence and magnitude of surprise medical bills and evaluates the impact of policies that prohibit surprise medical billing. She also conducts qualitative and quantitative research on health system performance, strategies for health care cost containment, provider payment policies, and socioeconomic and racial disparities in health outcomes. 

Duffy holds a Ph.D. in policy analysis from Pardee RAND Graduate School, an M.P.H. from Boston University with concentrations in biostatistics and epidemiology, and a B.A. in religion from Wellesley College.  


  • A medical bill showing balance due, photo by DNY59/Getty Images

    Addressing Surprise Medical Bills Without Raising the Cost of Health Care

    Patients who try to stay within their insurers' networks can be hit with surprise bills when they unknowingly receive care from out-of-network physicians. How much should a physician be paid for providing a service that is critical but rendered without the patient's ready ability to choose an in-network provider?

    Apr 1, 2019 The Hill

  • Patient filling out forms in a doctor's office

    Can a Continuous Coverage Requirement Produce a Healthy Insurance Market?

    A continuous coverage requirement is intended to discourage individuals from waiting until they become sick to purchase insurance. Such a requirement works well in theory to maintain a healthy marketplace, but there is little evidence on how well it might work in practice.

    Jan 4, 2017 The Hill