Hospital Mergers Don’t Make Care Better—They Just Make It Pricier, LDI Fellows Say
A New Review Finds Hospital Mergers Raise Prices Without Improving Care, and Urges Regulators to Stop Accepting Quality Claims to Justify Consolidations
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
Our work addresses some of the most pressing health and health care challenges facing our nation today.
Medicare Payment Model Shortchanges Rural Patients, Study Finds
CMS’s Main Risk Adjustment Method Underestimates Rural Patients’ Health Risks, LDI Fellows Show, Potentially Reducing Access to Care in the Heartland
AI Pushes Medical Schools Into New Era, but Are They Prepared?
Experts at Penn LDI Panel Call for Rapid Training of Students and Faculty
Acupuncture Could Fix America’s Chronic Pain Crisis–So Why Can’t Patients Get It?
A Proven, Low-Risk Treatment Is Backed by Major Studies and Patient Demand, Yet Medicare and Insurers Still Make It Hard To Use
Black Older Adults With Cancer Are Far Less Likely to Get Any Care
New Study From LDI and MD Anderson Finds That Black and Low-Income, Dually Eligible Medicare Patients Are Among the Most Neglected in Cancer Care
When Medicare Sent Patients Home Sooner, Mary Naylor Built the Safety Net
Her Transitional Care Model Shows How Nurse-Led Care Can Keep Older Adults Out of the Hospital and Change Care Worldwide
Upcoming Events
In-Person Event
Fireside Chat with Vivek Murthy, MD, MBA — *CANCELED*
Loneliness and Public Health: A Conversation with Ezekiel Emanuel, MD, PhD
Open to Penn affiliates
In-Person Event
LDI Fellows Workshop: Using Large Language Models (LLMs) for Health Services Research, Part 2
Open only 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.
Gary Weissman, MD, MSHP
- Assistant Professor, Pulmonary and Critical Care Medicine , Perelman School of Medicine
Abby Sartor, MD
- Clinical Fellow, Gynecologic Oncology , Perelman School of Medicine
Austin Kilaru, MD, MSHP
- Assistant Professor, Emergency Medicine , Perelman School of Medicine
Sarah Gutman, MD, MSPH
- Assistant Professor, OB/GYN , Perelman School of Medicine
Dylan Small, PhD
- Universal Furniture Professor , Wharton School
- Professor, Statistics and Data Science , Wharton School
Michael Scott, MB, ChB
- Professor, Anesthesiology and Critical Care , Perelman School of Medicine
Amy Hillier, PhD, MSW
- Associate Professor, Social Work , School of Social Policy & Practice
Sean Hennessy, PharmD, PhD
- Professor, Biostatistics, Epidemiology, and Informatics , Perelman School of Medicine
- Professor, Systems Pharmacology and Translational Therapeutics , 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