Reaching Across the Aisle to Lower Health Care Costs
Two Health Policy Experts Find Bipartisan Consensus in Site Neutral Payments, Controlling Medicare Costs
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.
Military Surgeons Saw More Readmissions After Returning From Deployment
Leaves May Decay Doctors’ Skills, so Hospitals Need a Plan for Reentry, LDI Expert Says
Study Highlights Hidden Obstacles to Effective Asthma Care
Patient Navigators Help Address Housing Conditions, Household Allergens, and Other Barriers to Treatment
The GLP-1 Dilemma: Medical Breakthrough Meets Financial Reality
Penn LDI Panel Examines the Costs, Coverage Gaps, and Equity Challenges of Blockbuster Drugs
Solving the Nursing Shortage Means Supporting Care Workers
After Her Daughter’s Death, LDI Fellow Calls for Stronger Care Worker Training and Standards
When Higher Minimum Wages Don’t Mean Higher Incomes
New Research Finds Wage Increases Can Reduce Work Hours and Income for Some Women and Affect Infant Health
Upcoming Events
In-Person Event
LDI Fellow Workshop: Engaging with Policymakers to Increase the Impact of Your Research
Open to LDI Fellows only
In-Person Event
2026 J. Sanford “Sandy” Schwartz Memorial Grand Rounds with Peter Ubel, MD
Are Medical Experts Asking Patient Preferences to do Their Dirty Work?
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.
George Demiris, PhD, FACMI
- Penn Integrates Knowledge Professor, Biobehavioral Health Sciences , Penn Nursing
- Penn Integrates Knowledge Professor, Epidemiology and Informatics , Perelman School of Medicine
Summer Kaplan, MD, MS
- Associate Professor, Radiology , Perelman School of Medicine
Dominic A. Sisti, PhD, MBE
- Associate Professor, Medical Ethics & Health Policy and Psychiatry , Perelman School of Medicine
Mary Phan, PhD
- Postdoctoral Fellow, Department of Psychiatry , Perelman School of Medicine
Daniel Gorenstein
- Founder and Executive Editor, Tradeoffs Podcast
Madeline Perry, MD
- Postdoctoral Fellow, National Clinician Scholars Program , Perelman School of Medicine
Zachary Meisel, MD, MPH
- Professor, Emergency Medicine , Perelman School of Medicine
- Director, Center for Emergency Care Policy and Research , Perelman School of Medicine
Kevin Mahoney, MBA
- Chief Executive Officer, University of Pennsylvania Health System , 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
Our Impact
Penn LDI’s success stems from creating multidisciplinary solutions to our nation’s most pressing health care problems. Explore 20 stories about the transformative power of our institute.
