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Penn LDI The Latest

FEATURE STORIES

Jamaji Nwanaji-Enwerem

Health Insurance May Slow Toxin-Related Aging

A study by Jamaji Nwanaji-Enwerem revealed that among people exposed to similar levels of lead, those with health insurance showed fewer changes associated with biological aging than those without insurance.

A person holding a miniature cardboard house

Housing Helps Veterans with Heart Disease

Sameed Khatana, Peter Groeneveld, Vincent Reina, Eric T. Roberts, and colleagues found that permanent supportive housing was significantly linked to fewer ED visits and hospitalizations for unhoused veterans with cardiovascular disease.

Abby Alpert

Insurer Acquisition of PBMs and Costs for Insurers

Research by Abby Alpert discovered that Medicare Part D insurers that continued to work with rival insurers’ pharmacy benefit managers (PBMs) had double-digit hikes in their premiums.

Two people looking at their phones

Policymakers' Social Posts on Firearm Violence

Therese Richmond, Matthew Kearney, and Zachary Meisel found that Pennsylvania state lawmakers’ social media posts were in response to mass shootings and lacked a public health framing.

Alon Bergman and Kaustav Shah

AI Device Firm Payments to Physicians

A study by Alon Bergman and Kaustav Shah showed that AI-enabled medical device firms paid $60 million to 46,000 doctors between 2017 and 2023.

 UPCOMING EVENTS

A photo of a wall with barbed wire on top of it

Behind Bars, Beyond Health: Equity and Incarceration in America

Tuesday, April 7, 2026
12:00–1:00 p.m. ET

 

A Conversation with Jason Schnittker, PhD. Moderated by Rachel M. Werner, MD, PhD.

 

In-person seminar open to Penn affiliates, in conjunction with Penn Medicine's Health Equity Week 

Emily Mrig

Research Seminar with Emily Mrig, PhD

Thursday, April 23, 2026
12:00–1:00 p.m. ET

 

From Promise to Practice: How Payment, Coverage, and Institutional Dynamics Shape Access to Precision Medicine

 

In-person seminar open to Penn affiliates, in conjunction with the Emerging Scholars Exchange Program.

 EVENT VIDEO RECAP

Medicare written on a sticky note on top of cash

Is Medicare Advantage Working?

At our recent virtual seminar, an expert panel discussed the benefits and challenges of Medicare Advantage, drawing in a national audience of 1,000+ registrants.

Penn LDI CHERISH 2026 Conference Graphics_500x500px

Substance Use Disorder Policy and Care in a Time of Medicaid Change

Over 600 attendees tuned in to our virtual conference to hear national experts discuss the impact of upcoming Medicaid funding changes for substance use disorder treatment programs.

IN THE MEDIA

“13 Years, 6 Doctors and a Lawsuit: The Road to an Endometriosis Diagnosis.” Jasmine Harris. New York Times

 

“US Senator Investigates FDA Over Rare-Disease Drug Denials.” Holly Fernandez Lynch. Bloomberg

 

“How Collective Intelligence Could Soon Reshape Medical Decision-Making.” Damon Centola. Forbes

 

“FDA Approves Drug for Rare Brain Disorder, Not Autism.” David Mandell. U.S. News and World Report

 

“Lyme Disease Vaccine Shows 70 Percent Efficacy, Pfizer Says.” Robert Aronowitz. Washington Post

PUBLICATIONS

“An Electronic Health Record-Based Tobacco Treatment System for Parents in Pediatric Primary Care.” Brian P. Jenssen, Abra M. Jeffers, Emara Nabi-Burza, Janani Ramachandran, Jeritt Thayer, Bethany Hipple Walters, Douglas E. Levy, Robert W. Grundmeier, Olivier Drouin, Mark Vangel, Nancy A. Rigotti, Tyra Bryant-Stephens, Alexander G. Fiks, Jonathan P. Winickoff. Pediatrics

 

“Teaching Video NeuroImage: C9orf72-Related Parkinsonism.” Megan Super, Rachel A. Paul, David J. Irwin, Whitley W. Aamodt. Neurology

 

“Modeling the Make America Healthy Again's Food Policy Strategy on Tobacco.” Christina A. Roberto, Alyssa J. Moran, Emily Broad Leib. JAMA Health Forum

 

“Maternal Depression and Opioid Use After Cesarean Delivery.” Taylor L. Pitt, Trisha M. Boekhoudt, Kara M. Rood, Hyagriv N. Simhan, Brian M. Casey, Monica Longo, Ruth Landau, Anna Bartholomew, Amber Sowles, Cora MacPherson, Dwight J. Rouse, John M. Thorp Jr., Uma Reddy, Jennifer L. Bailit, Ann M. Bruno, George R. Saade, Suneet P. Chauhan, William A. Grobman, Sindhu K. Srinivas. Obstetrics & Gynecology


“Caregiver Perceptions of Social Need Documentation.” Rachel Brown, Madeline DeMarco, Danielle Cullen. JAMA Network Open

Penn’s Leonard Davis Institute of Health Economics is a national leader in advancing health policy through transformative research.

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Leonard Davis Institute of Health Economics, 3641 Locust Walk, Philadelphia, PA 19104

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