Our team

Lawrence Peter Casalino, MD, PhD

Chief of the Division of Health Policy and Economics, Professor of Population Health Sciences, and Livingston Farrand Professor of Public Health

Dr. Casalino is the Livingston Farrand Professor of Public Health and Chief of the Division of Health Policy and Economics in the Department of Population Health Sciences at Weill Cornell Medicine. He is the Director of The Physicians Foundation Center for the Study of Physician Practice and Leadership at Weill Cornell.

Dr. Casalino is one of the very few academic researchers in the U.S. who has significant experience in full-time private practice. After working as a community organizer, he worked for 20 years as a full-time family physician in private practice in Half Moon Bay, California and as a tenured faculty member at the University of Chicago before coming to Weill Cornell.

Casalino has published numerous articles in peer-reviewed journals, including many articles in high impact journals, including the New England Journal of Medicine, JAMA, the Annals of Internal Medicine, and Health Affairs.  He is the recipient of a prestigious Investigator Award in Health Policy Research from the Robert Wood Johnson Foundation and of the John A. Benson Jr. Professionalism Article Prize from the American Board of Internal Medicine.  

Dr. Casalino has served on numerous national committees and Boards of Directors, as the chair of the Academy Health Annual Research Meeting, as the John Fry Fellow at the Nuffield Trust in London, as a member of the Congressional Budget Office Panel of Health Advisors, and as a senior advisor to the director of the U.S. Agency for Healthcare Research and Quality (AHRQ).  He currently serves as a Commissioner on the Medicare Payment Advisory Commission (MedPAC).

Amelia Bond, PhD

Assistant Professor of Population Health Sciences

Amelia Bond is a health economist and assistant professor at Weill Cornell Medicine’s Department of Population Health Sciences. Dr. Bond’s research focuses on provider payment and incentive structures. She holds a Ph.D. and M.S. from the Wharton School of the University of Pennsylvania, an M.H.S from Bloomberg School of Public Health and a B.A. from Wellesley College. She was previously a Research Analyst at the Center for Studying Health System Change, an independent health policy organization in Washington DC.

Dhruv Khullar, MD, MPP

Assistant Professor of Population Health Sciences

Dhruv Khullar is a physician at NewYork-Presbyterian Hospital and an assistant professor at the Weill Cornell Department of Population Health Sciences. He is also a contributor at the New York Times, where he explores the intersection of medicine, health policy, and economics. He currently serves as Director of Policy Dissemination at the Physicians Foundation Center for the study of Physician Practice and Leadership (CPPL). Dr. Khullar completed his training in internal medicine at the Massachusetts General Hospital and Harvard Medical School, and earned his medical degree (M.D.) at the Yale School of Medicine. He also received a Masters in Public Policy (M.P.P.) from the Harvard Kennedy School, where he was a fellow at the Center for Public Leadership. He was recognized by LinkedIn as one of the Top 10 Healthcare Professionals Under 35, by the National Minority Quality Forum as a 40 Under 40 Leader in Health, and by FASPE with the 2019 Distinguished Fellow Award for Ethical Leadership.

Eloise May O'Donnell, MPH

Research Program Manager

Eloise May O’Donnell is a Research Program Manager for the Division of Health Policy and Economics at Weill Cornell Medicine. Ms. O’Donnell holds a Master in Public Health from the University of Sydney. Previously, she worked in a boutique consulting firm in Sydney, using simulation modeling and systems thinking to address public health challenges. Her research interests include the corporatization of American medicine and the effects, for better or for worse, on patient outcomes and physician, staff and patient experience. Eloise also serves as Director of Administration at the Physicians Foundation Center for the study of Physician Practice and Leadership (CPPL). 

Hye-Young (Arian) Jung, PhD

Assistant Professor of Population Health Sciences

Hye-Young (Arian) Jung is an assistant professor at Weill Cornell Medicine’s Department of Population Health Sciences. Dr. Jung’s research largely focuses on empirical investigations of the impact of Medicare policies on the quality of care in post-acute and long-term care settings. Her current work is funded by a (K01) Mentored Research Scientist Career Development Award that largely centers on physicians who almost exclusively treat patients in nursing homes, i.e. “SNFists,” and whether they provide higher quality of care to Alzheimer’s patients in these facilities compared to other physicians. Dr. Jung’s other research interests include evaluating provider response to financial incentives, such as those intended to increase the adoption and use of health information technology, and the resulting consequences for the quality of care provided to Medicare beneficiaries.

Jiani Yu, PhD

Assistant Professor of Population Health Sciences

Jiani Yu is an assistant professor of Population Health Sciences at Weill Cornell Medicine. Dr. Yu is a health services researcher specializing in health economics. Her research is focused on innovations in health care delivery and the evaluation of health care interventions. More specifically, she studies the use of telemedicine services in health care delivery systems, including the utilization, costs and quality of health care services associated with virtual care. She is also interested in studying interventions to improve access to care, alternative payment models, and home health.

Jing Li, PhD

Assistant Professor of Population Health Sciences

Jing Li is a health economist and assistant professor in the Department of Population Health Sciences at Weill Cornell Medicine. She holds a PhD in Health Policy and a concurrent MA in Economics from University of California, Berkeley, and an MA in International Comparative Education from Stanford University. Dr. Li’s research focuses on the economic and behavioral mechanisms that guide decision-making in health care, for both physicians and patients. Her current projects with CPPL include using a cutting-edge economic experiment to measure altruism of physicians, and use altruism to predict their practice behavior and quality of care.

Mark Aaron Unruh, PhD

Assistant Professor of Population Health Sciences

Mark Aaron Unruh is an assistant professor of Population Health Sciences at Weill Cornell Medicine. His research primarily focuses on policies targeting Medicare beneficiaries receiving post-acute on long-term care. This includes studies examining provider response to the structure and level of Medicare and Medicaid reimbursements and also policies incentivizing the adoption and use of health information technology. His current work also includes projects examining the relationship between prices paid by commercial insurers to providers and the quality and cost of care. 

Robert 'Tyler' Braun, PhD

Postdoctoral Associate of Population Health Sciences

Robert “Tyler” Braun is a postdoctoral associate at Weill Cornell Medicine in the Department of Population Health Sciences. Tyler is a health policy researcher with particular interests in the comparative effectiveness of delivery systems and the advancement of Triple Aim. Dr. Braun is interested in the corporate transformation of medicine and how consolidation of medical organizations influences provider behavior, cost, and quality of care. Currently, he is the research leader on how acquisition of physician practices by private equity firms and physician management companies effect patient cost and quality of care. Previously, Dr. Braun was a pre-doctoral fellow in the Office of Data Analytics at the Department of Medical Assistance Services (DMAS) and has extensive experience in leveraging large and complex claims databases to answer important health services research related questions. 

William Schpero, PhD

Assistant Professor of Population Health Sciences

William Schpero is a health economist and an assistant professor in the Division of Health Policy and Economics. His research aims to inform the evolution of Medicaid policy and the design of the health care safety net in the United States. He is particularly interested in how provider incentives affect the composition of the delivery system and outcomes for low-income populations. He also seeks to identify and test policy levers that can be used to address racial, ethnic, and socioeconomic disparities in health and health care. Schpero received his Ph.D. from Yale University and his undergraduate degree from Dartmouth College.

Yongkang Zhang, PhD

Research Associate of Population Health Sciences

Yongkang Zhang is a research associate in the Division of Health Policy and Economics. Dr. Zhang’s research focuses on access, processes, and outcomes of healthcare. The overarching goal of his research agenda is to improve the value of healthcare by leveraging data-driven insights from comprehensive healthcare data (e.g., insurance claims, EHR, and social determinants of health data). His recent projects include high-cost Medicare patients, social determinants of health, healthcare providers’ prices paid by commercial insurers, and prediction modeling for hospital readmission. Dr. Zhang got his PhD in health policy and management from Tulane University.

Yuting Qian, MS

Research Coordinator of Population Health Sciences

Yuting Qian is the Research Coordinator for the Division of Health Policy and Economics at Weill Cornell Medicine. Ms. Qian holds an MS in Health Policy and Economics from Weill Cornell Medicine of Cornell University. She is currently assisting in a variety of projects in health service research area in the division, including collection, documentation and analysis of research data. She is also assisting with IRB protocol creation and submissions for review.

Manyao Zhang, MS

Research Data Analyst