Marcela Horvitz-Lennon

Marcela Horvitz-Lennon

Senior Physician Policy Researcher, RAND; Professor of Policy Analysis, RAND School of Public Policy

She/Her

Marcela Horvitz-Lennon is a senior physician policy researcher at RAND and a professor of policy analysis at the RAND School of Public Policy. She is also an associate professor of psychiatry (part-time) at Harvard Medical School, and a senior scientist at the Health Evaluation Research Laboratory, Cambridge Health Alliance, a safety-net hospital where she is also a practicing psychiatrist. She has research experience in various topics of relevance to individuals with serious mental illness, whose high disease burden is compounded by social disadvantage. Topics include health care access, quality, and costs; racial, ethnic, and geographic disparities; effectiveness and safety of treatments; underuse/overuse of mental health interventions; integration of physical and mental health care; diffusion of innovations; impacts of harmful social determinants of health; and Medicaid and federal health care policy. Horvitz-Lennon has led NIH-funded investigations and publicly-funded contract work to advance knowledge on these topics and evaluate clinical and policy strategies seeking to improve care and outcomes for this vulnerable population. She has served as reviewer and chair at standing and ad-hoc NIH study sections, and is a longtime member of the American Psychiatric Association's Clinical Guideline Writing Group. Horvitz-Lennon has mentored pre-doctoral students and served as member/director of Ph.D. dissertation committees. Horvitz-Lennon earned her M.D. in Santiago, Chile, and a Master's degree in public health at Johns Hopkins University School of Public Health. She completed her psychiatric residency training at the University of Maryland Medical School and a fellowship in community psychiatry at Johns Hopkins Medical School.

Education

M.D. in medicine with intern, Pontifical Catholic University; M.P.H. in public health, Johns Hopkins University

Languages

Spanish

Concurrent Non-RAND Positions

Associate Professor (part-Time), Harvard Medical School

Selected Work

  • Lê Cook B, McConnell KJ, Parry G, Flores MW, Kumar A, Holmes H, Reddy A, Takalkar R, Mullin B, Normand SLT, Horvitz-Lennon M., "Disparities in access to serious mental illness care following the implementation of value-based payment reform in the Oregon Medicaid program. ," Medical Care Research and Review , 2025
  • Normand SLT, Leckman-Westin E, Finnerty M, Jeong J, Tsuei J, Zelevinsky K, Chen QC, Horvitz-Lennon M., "Race, ethnicity, and diffusion of telemedicine in Medicaid for schizophrenia care following the pandemic onset," JAMA Network Open (forthcoming)
  • Normand SLT, Zelevinsky K, Finnerty M, Leckman-Westin E, Chen QC, Jeong J, Abing HK, Tsuei J, Horvitz-Lennon M., "Racial-ethnic disparities in quality of care among Medicaid beneficiaries with schizophrenia.," Psychiatric Services , 2024 (forthcoming)
  • Agniel D, Normand SLT, Newcomer JW, Zelevinsky K, Poulos J, Tsuei J, Horvitz-Lennon M., "Revisiting diabetes risk of olanzapine versus aripiprazole for serious mental illness care," BJPsych Open, 2024 (forthcoming)
  • Horvitz-Lennon M, McConnell KJ, Glied S, Levin JS, Eberhart NK, Breslau J., "Is carve-in financing of Medicaid behavioral health services better than carve-out? ," Health Affairs, 2023
  • Horvitz-Lennon M, Breslau J, Wagner L, Setodji C, Lu R, Ohana E, Ruder T, Kushner J, Tsuei J, Stefancic, A, Tuda D. , Independent Evaluation of the New York State Health and Recovery Plans (HARP) Program. Interim Evaluation Report., New York State Department of Health. , 2022
  • Horvitz-Lennon, M. "Evidence-Based Practices or Practice-Based Evidence: What Is The Future? ," in Goldman H, Frank R, and Morrissey J, editors. , The Palgrave Handbook of American Mental Health Policy., Palgrave Macmillan, 2020
  • Mulcahy AM, Normand SLT, Newcomer J, Colaiaco B, Donohue JT, Horvitz-Lennon M, "Simulated effects of policies to reduce diabetes risk among adults with schizophrenia receiving antipsychotics," Psychiatric Services, 2017

Authored by Marcela Horvitz-Lennon

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