Columbia Endocrinology — Heidi Guzman, MD
180 Fort Washington Ave Ste 904 · New York, NY 10032
Namrata Gumaste · 222 E 41ST ST FL 23 · New York, NY 10017
5.0· 1 Google review
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.
| Advertises semaglutide today | Not listed |
| Advertises tirzepatide today | Not listed |
| Telehealth visits | Yes |
| Cash pay accepted | Yes |
| Accepts insurance — per practice website | Not listed |
| 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 2026-02-03. Read the reviews themselves on the practice's Google listing.
180 Fort Washington Ave Ste 904 · New York, NY 10032
525 E 68th St # F-2020 · New York, NY 10065
3.0(22 Google reviews · 6 in past year)
222 East 41st Street, Floor 23 · New York, NY 10017
2.7(7 Google reviews · 1 in past year)
423 E 23RD ST · New York, NY 10010
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