RetaMaps

Gastrointestinal and NonSurgical Weight Loss Solutions

Gastrointestinal and NonSurgical Weight Loss Solutions · 623 West Duarte Road · Arcadia, CA 91007

4.9· 76 Google reviews

Listing updated October 2, 2026

Retatrutide outlook for this practice

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.

About this practice

Gastrointestinal & Non-Surgical Weight Loss Solutions is a gastroenterology and non-surgical weight-loss practice in Arcadia, California. Its website says it is led by Dr. Portocarrero, described as a board-certified interventional gastroenterologist with training in internal medicine, gastroenterology and obesity medicine, and it references 2021 as its start. The site also introduces an office manager who is fluent in English and Spanish. Google shows a 4.9-star rating across 76 reviews dating back to 2021, with 24 in the past year; reviewers most often mention the staff, and 16 reviews mention results.

Services & access

Advertises semaglutide todayNot listed
Advertises tirzepatide todayNot listed
Telehealth visitsNot listed
Cash pay accepted—
Accepts insurance — per practice websiteYes
Accepting new patients — per practice websiteYes

"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.

Review activity

★ 4.9
Google rating · 76 reviews
24
reviews in the past year (avg ★ 4.8)
1
reviews mention GLP-1 medications
13
reviews mention weight loss

Counts computed by RetaMaps from public Google reviews; most recent review 2026-09-25. Read the reviews themselves on the practice's Google listing.

What patients say

Rated ★4.9 across 76 Google reviews. Of the 76 reviews we analyzed, 74 (97%) are positive (4–5★) and 2 (3%) are negative (1–2★).

What patients like

  • Friendly, helpful staff17 reviews
  • Weight-loss results15 reviews
  • Knowledgeable, professional providers11 reviews
  • Feeling listened to5 reviews

Common complaints

  • Concerns about provider expertise2 of 2 negative
  • Scheduling or communication problems2 of 2 negative
5★
71
4★
3
3★
0
2★
1
1★
1

Most recent Google reviews

Perla★★★★★2026-09-25

Mi nombre es Perla . Me realize la manga gastrica por endoscopia, con el Doctor : Portocarrero . Muy profesional , amable, desde el día 1 cuando me hizo la valoración me explicó el procedimiento y cuales hiban hacer los resultados. En tan solo 5 días de mi intervención e bajado 13 libras . Hoy se , que fue la mejor decisión que tome para mi Salud y sentirme mejor con migo misma . Vieje del estado de UTAH a Arcadia California. Lo recomiendo 100%

mihair h.★★★★★2026-08-09

Woot Woot!

Armine M.★★★★★2026-08-05

OMG, I don’t even know where to start! I would like to sincerely thank the entire staff, from the front desk team to the pre-op nurses, OR nurses, and everyone involved in my care. From the moment I walked into the surgery center, I was greeted with warm smiles and kindness. Everyone made me feel comfortable, and my fear and anxiety quickly disappeared. A special thank you to Dr Donald Portocarrero He patiently answered all of my questions and took the time to explain every detail of the procedure. His knowledge, professionalism, and expertise gave me complete confidence that I was in the best hands. It has been 10 days since my ESG procedure, and my experience has been amazing. I have had no pain, no nausea, and no vomiting. I was extremely scared before the procedure, but looking back, I realize I had nothing to worry about. In just 10 days, I have already lost 12 pounds, and I can’t wait to see my continued progress. Choosing this team was one of the best decisions I’ve made. I highly recommend Dr Donald Portocarrero and his entire team to anyone considering ESG. Thank you all for making this such a positive experience!

blanca p.★★★★★2026-07-24

Excelente servicio del Dr.Porto carrero, después de mucho tiempo tome una muy buena decisión de hacerme la manga gástrica por endoscopia, el procedimiento fue rápido y sin dolor con un excelente servicio, y he logrado bajar 20 libras en tan solo 4 semanas, y puedo decir que es una de las mejores decisiones que he tomado para mi salud, en mi punto de vista lo recomiendo.

Delia L.★★★★★2026-07-17

Thanks to Dr. Don Portocarrero and his knowledgeable team at Gastrointestinal NonSurgical Weight Loss Solutions, I found a way to win the never ending fight against obesity with the ESG. I was scared of surgeries, skeptical about weight loss injections and tired of trying to lose weight without results. Dr. Portocarrero took time to explain every step of the ESG procedure and followed up with the aftercare and diet, making it easy to trust him, understand and follow his instructions. I was home, up and walking the same day after the procedure ready to start my new healthier lifestyle! Very grateful, Delia.

Analysis by RetaMaps of reviews on this practice's public Google Business listing; review themes are detected automatically and reviews reflect their authors' opinions. See all reviews on Google.

Nearby providers in Arcadia

Retatrutide status
Phase 3 complete · Not FDA-approvedUpdated October 2, 2026

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.

Development
Phase 3 complete
FDA status
Submission planned — Q1 2027 (Lilly guidance)
Availability
Not commercially available
Access routes
Clinical trials, or Lilly's expanded access program (physician must apply)

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