Penn Metabolic Medicine — David M. Merrick, MD, PhD
3737 Market Street, 9th Floor · Philadelphia, PA 19104
Hospital of the University of Pennsylvania — West Pavilion · 3400 Civic Center Boulevard, West Pavilion, 4th Floor · Philadelphia, PA 19104
2.6· 11 Google reviews
Listing updated October 2, 2026
No current plans confirmed — RetaMaps has not yet confirmed this practice's intentions regarding retatrutide. Inclusion on RetaMaps does not mean the provider offers or will offer retatrutide.
Penn Medicine Endocrinology, Diabetes and Metabolism is an academic hospital program treating diabetes, thyroid, pituitary, metabolic, obesity, and related hormone disorders, with team-based care, clinical trials, and insurance-based scheduling. Hamdee Attallah, MD, is Professor of Clinical Medicine and Section Chief of Endocrinology at the Philadelphia VA; he sees adults 18+ at the Hospital of the University of Pennsylvania West Pavilion (3400 Civic Center Boulevard). Official pages accept insurance and do not name GLP-1 brands.
| Advertises semaglutide today | Not listed |
| Advertises tirzepatide today | Not listed |
| Telehealth visits | Not listed |
| Cash pay accepted | Yes |
| Accepts insurance — per practice website | Yes |
| Accepting new patients — per practice website | Yes |
"Not listed" means we didn't find this stated on the practice's public pages — it doesn't mean no. — means unknown. Medication rows describe currently FDA-approved GLP-1 medications the practice advertises today, not retatrutide. Confirm details directly with the practice.
Counts computed by RetaMaps from public Google reviews; most recent review 2026-02-25. Read the reviews themselves on the practice's Google listing.
3737 Market Street, 9th Floor · Philadelphia, PA 19104
3401 N. Broad Street · Philadelphia, PA 19140
3400 Civic Center Boulevard, Perelman Center for Advanced Medicine, West Pavilion, 4th Floor · Philadelphia, PA 19104
3400 SPRUCE STREET, 1 MALONEY · Philadelphia, PA 19104
Retatrutide is Eli Lilly's investigational once-weekly triple agonist (GIP, GLP-1 and glucagon receptors). Five Phase 3 trials have reported positive results, and Lilly plans to submit it to the FDA in Q1 2027. It is not FDA-approved, has no brand name or price, and cannot be prescribed outside clinical trials or Lilly's physician-requested expanded access program. Products sold online as "research" or compounded retatrutide are not legitimate retatrutide.
Next milestone: TRIUMPH-5 head-to-head vs tirzepatide results (Expected ~Dec 2026)
Sources: Lilly — What to know about retatrutide · Lilly — TRIUMPH-2/TRIUMPH-3 results · BioPharma Dive — FDA submission plans · STAT — Lilly expanded access (Aug 3, 2026) · FDA — Concerns with unapproved GLP-1 drugs