Incarceration as Social Determinant of Health
Penn Researcher Says Mental Illness, Chronic Disease Risks Surge After Release
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.
What The Pitt Gets Right About the U.S. Health Care System
LDI Fellows Weigh in on the HBO Max Show, Describing Real Challenges From High Patient Bills to Assaults on Nurses in the ER
U.S. AI Boom Could Cause Health Care Costs to Soar Without Changes to Payment Policy
Federal Officials Factor in Health Gains to Control Spending, LDI Fellow Says
Finding Rare Agreement on Fixing the Health Care Affordability Crisis
Former Obama and Trump Advisors Find Some Common Ground at D.C. University of Pennsylvania Event
“Everybody’s Going to Feel the Pain”: Medicaid Cuts Threaten Addiction Treatment
New York Commissioner Warns University of Pennsylvania Conference That Funding Losses Could Force States to Ration Care and Risk Rising Overdose Deaths
Many Maternal Deaths Occur After Birth, With Mental Health a Key Factor
LDI Experts Are Making Postpartum Care Safer With Telehealth, Remote Monitoring, Doulas, and Long-Acting Addiction Care
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
In-Person Event
Research Seminar with Emily Mrig, PhD
From Promise to Practice: How Payment, Coverage, and Institutional Dynamics Shape Access to Precision Medicine
Open to Penn Affiliates
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.
John Rizzo, MSN, RN
- PhD Student, Center for Health Outcomes and Policy Research (CHOPR) , Penn Nursing
Oluwadamilola (Lola) Fayanju, MD, MA
- Professor, Surgery , Perelman School of Medicine
Rachel M. Werner, MD, PhD
- Executive Director of the Leonard Davis Institute
- Robert D. Eilers Memorial – William Maul Measey Professor in Health Care Management and Economics , Wharton School
Matthew Press, MD, MSc
- Associate Professor, General Internal Medicine , Perelman School of Medicine
Lauren VonHoltz, MD, MPH
- Assistant Professor, Emergency Medicine , Perelman School of Medicine
- Assistant Professor, Pediatric Emergency Medicine , Children’s Hospital of Philadelphia
Gary Weissman, MD, MSHP
- Assistant Professor, Pulmonary and Critical Care Medicine , Perelman School of Medicine
Catherine Vanchiere, MD, MA
- Clinical Fellow, Cardiovascular Medicine , Perelman School of Medicine
Melanie Kornides, ScD, MSN
- Associate Professor, Family & Community Health , Penn Nursing
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
$160M+
Awarded in External Grant Funding
11,300+
Journal Articles Published (2020–2024)
$400K+
Awarded in Research Grants from LDI