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Our Mission
We connect researchers from across the University of Pennsylvania with a common mission: to improve health and health care by catalyzing collaborative, multidisciplinary research that influences policy and practice.
Featured Research Updates
LDI generates critical evidence to improve U.S. health care delivery, patient care, and health policy.
Don’t Normalize Workplace Violence Against Nurses
LDI Fellows Say the Issue is One of Patient Safety and Quality Care—and Should Be Viewed Not as Inevitable, but Addressable Through Federal Reform
‘Pill Mill’ Laws Worked, Cutting Opioid Overprescribing and Deaths
Measures in 11 States Also Reduced Doctor Shopping Without Pushing Patients Into Illicit Drug Use, a New RAND–Penn Study Finds
Risk-Based Contracts Are Unlikely to Cut Waste in Medicare Advantage
Risk-Based Payments May Fail to Lower Low-Value Care, a New Study Shows
Proposing a Framework to License Autonomous Clinical AI
As Autonomous Clinical AI Continues to Evolve, We Need Uniform Regulatory Standards, Says LDI Fellow
As Deadly Heat Waves Rise, Federal Policy Fails to Cover Air Conditioning
Federal Safety Net Covers Heating But Cooling is Optional. That Needs to Change, an LDI Fellow Writes
Impact Report
Our commitment to driving positive change through transformative research powered a series of standout achievements in 2025. Explore how we turned evidence into action to shape smarter health policy.
Upcoming Events
Virtual Event
Decoding the Moment: Can the No Surprises Act Be Fixed?
A Conversation with Benjamin Chartock, PhD, Zack Cooper, PhD, and Lindsey Murtagh, JD, MPH, moderated by Dan Gorenstein
Our Experts
Our 500+ Fellows are national experts and thought leaders who bridge all of Penn’s schools, the University of Pennsylvania Health System, and the Children’s Hospital of Philadelphia.
Ari Friedman, MD, PhD
- Assistant Professor, Emergency Medicine , Perelman School of Medicine
Jerry Johnson, MD
- Professor Emeritus, Medicine , Perelman School of Medicine
Frank T. Leone, MD, MS
- Professor, Medicine , Perelman School of Medicine
Eileen Lake, PhD, RN
- Edith Clemmer Steinbright Professor of Gerontology , Penn Nursing
- Professor, Sociology , School of Arts and Sciences
Emily F. Gregory, MD, MHS
- Assistant Professor, Pediatrics , Perelman School of Medicine
Joniqua Ceasar, MD
- Postdoctoral Fellow, National Clinician Scholars Program , Perelman School of Medicine
Hyunmin (David) Yu, PhD, RN
- Postdoctoral Fellow, Center for Health Outcomes and Policy Research , Penn Nursing
Jalpa Doshi, PhD
- Leon Hess Professor of Internal Medicine , Perelman School of Medicine
What We Do
As Penn’s hub for health care delivery, health policy, and population health, we connect and amplify over 500 Fellows across the University, and train the next generation of researchers.
Fast Facts
$179M+
Awarded in External Grant Funding
12,100+
Journal Articles Published (2021–2025)
$622K+
Awarded in Research Grants from LDI