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LDI generates critical evidence to improve U.S. health care delivery, patient care, and health policy.

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In the Media

Our Fellows shape the nation’s most consequential health policy debates by authoring op-eds and reaching millions through appearances in top media outlets, including The New York Times, Washington Post, STAT News, Newsweek, and more.

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.

Judith Long

Judith Long, MD

  • Professor, Medicine , Perelman School of Medicine
  • Chief, Division of General Internal Medicine , Perelman School of Medicine
Alexis Ogdie

Alexis Ogdie, MD, MSCE

  • Professor, Medicine , Perelman School of Medicine
  • Professor, DBEI , Perelman School of Medicine
Christina Roberto

Christina Roberto, PhD

  • Mitchell J. Blutt and Margo Krody Blutt Presidential Professor, Medical Ethics and Health Policy , Perelman School of Medicine
  • Director, Center for Food & Nutrition Policy , Perelman School of Medicine
Alison Buttenheim

Alison Buttenheim, PhD, MBA

  • Professor, Family and Community Health , Penn Nursing
  • Professor, Medical Ethics and Health Policy , Perelman School of Medicine
Peter Groeneveld

Peter Groeneveld, MD, MS

  • Professor, Medicine , Perelman School of Medicine
  • Director, Center for Healthcare Evaluation, Research, and Promotion (CHERP)

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