When Insurers Acquire Pharmacy Benefit Managers, Medicare Members Could Pay More
Health Insurer Acquisition of PBMs — the Prescription Drug Middlemen — Raised Premiums for Some Part D Beneficiaries
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.
Linda Aiken to Receive ANA President’s Award
LDI Senior Fellow Honored for International Research Achievements
Rural Health Funds May Not Reach Hardest-Hit States, Study Finds
First Rural Health Grants May Not Go to Areas With the Greatest Needs, LDI Experts Find
How to Lower Maternal and Child Deaths Across the World? Give Low-Income Families Cash.
Research Brief: Cash Transfer Programs Improve Birth, Nutrition, and Early Childhood Health Outcomes
Medicaid Reviews May Disenroll Vulnerable Dual Eligibles
Chart of the Day: Researchers Urge Easier Renewals and Better Support To Prevent Gaps in Care
New Study Reveals Death Rates During SSDI’s 24-Month Wait for Medicare
While They Wait for Medicare, People Approved for Social Security Disability Die at Higher Rates Compared to the General Public
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
Is Medicare Advantage Working?
A Conversation with Cheryl Damberg, PhD, and Sachin Jain, MD, MBA, moderated by Rachel M. Werner, MD, PhD
Virtual Event
LDI Fellows Workshop: Truveta Real World Data Research Capabilities & Research Use Cases
Open to LDI Fellows
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.
Emma Cho, PhD, RN
- Postdoctoral Research Fellow, NewCourtland Center for Transitions and Health , Penn Nursing
Shana Stites, PsyD, MA
- Assistant Professor, Psychiatry , Perelman School of Medicine
Karen Lasater, PhD, RN
- Associate Professor, Biobehavioral Health Sciences , Penn Nursing
- Jessie M. Scott Term Chair, Nursing and Health Policy, Center for Health Outcomes and Policy Research , Penn Nursing
Sue Hyon Kim, MSN, RN
- PhD Student, Nursing , Penn Nursing
Caroline Darlington, PhD, MSN
- Fellow, National Clinician Scholars Program , Perelman School of Medicine
Jennifer Lewey, MD, MPH
- Assistant Professor, Medicine , Perelman School of Medicine
Caitlin Russell, PhD, MBE
- Postdoctoral Fellow, National Clinician Scholars Program , Perelman School of Medicine
- Instructor, Women’s Health Gender Related NP Track , Penn Nursing
Susan Salkowitz, MA, MGA
- Clerk, Section on Preventive Medicine and Public Health, College of Physicians of Philadelphia
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