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
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.
U.S. Hospital Nurse Job Conditions Worsen After COVID, and Turnover Continues
Chart of the Day: National Study Shows Worse Nurse Job Satisfaction and Perceived Lower Care Quality as Staffing Shortages Persist Post-Pandemic
A Simple, Gamified Program Boosted Walking in Parkinson’s Patients
Chart of the Day: Remote Intervention with Gaming Elements Shows Promise, LDI Expert Finds
Courtney Schreiber Wins International Prize for Pregnancy Research
Cited for Driving Changes in Early Pregnancy Loss Care Guidelines
Incarceration as Social Determinant of Health
Penn Researcher Says Mental Illness, Chronic Disease Risks Surge After Release
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
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
In-Person Event
Charles C. Leighton, MD Memorial Lecture with Said Ibrahim, MD, MBA
Variations in Health Care Access, Utilization, and Outcomes: The Case of Elective Joint Replacement
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.
Yuan He, MD, MPH
- Assistant Professor, Pediatrics , Perelman School of Medicine
Julie A. Sochalski, PhD, RN
- Associate Professor, Biobehavioral Health Sciences , Penn Nursing
- Associate Dean, Academic Programs , Penn Nursing
Irma Elo, PhD, MPA
- Tamsen and Michael Brown Presidential Professor, Sociology , School of Arts and Sciences
Andy Murray, PhD
- Postdoctoral Fellow, Medical Ethics and Health Policy , Perelman School of Medicine
Rachel Kelz, MD, MSCE
- William Maul Measey Professor, Surgery , Perelman School of Medicine
- Director, Center for Surgery and Health Economics, Department of Surgery , Perelman School of Medicine
Christopher Chesley, MD, MSCE
- Assistant Professor of Medicine, Pulmonary and Critical Care , Perelman School of Medicine
Timothy Markman, MD
- Assistant Professor, Medicine and Cardiovascular Disease , Perelman School of Medicine
Oluwadamilola (Lola) Fayanju, MD, MA
- Professor, Surgery , 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
$160M+
Awarded in External Grant Funding
11,300+
Journal Articles Published (2020–2024)
$400K+
Awarded in Research Grants from LDI