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Prisma Health Gastroenterology and Liver Center

Gastroenterology • Simpsonville, SC • Since 2017

About

Prisma Health Gastroenterology and Liver Center – Simpsonville is part of Prisma Health, South Carolina’s largest nonprofit health system. The center focuses on digestive health services, including gastroenterology and liver care, and is aligned with Prisma Health’s mission to improve clinical quality, access, and patient experience across South Carolina. The organization operates from its Greenville HQ and serves patients statewide through its facilities and programs. For specifics on Simpsonville services, availability, or appointment information, contact Prisma Health directly or visit prismahealth.org.

Clinic Type

Gastroenterology

Address

741 SE Main St. Simpsonville, SC 29681

Phone

864-522-8420

Email

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Opening Hours

8 AM–5 PM

Services Offered

  • Gastroenterology
  • Hepatology
  • Endoscopy

Technology & Equipment

  • Endoscopy suite on-site

Team

  • M. Macmillan, MD — Gastroenterologist
  • P. Sentell — Gastroenterologist
  • Sentell, AGAC, AGAC — Gastroenterologist

Insurance & Payment

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Languages Spoken

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Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Prisma Health Find a Doctor portal: Individual providers at the facility generally hold high ratings (e.g., 4.6–4.9 out of 5 stars based on dozens of reviews per provider) (Varies by provider (e.g., 12 to 29 reviews per provider listed))

Patients praise

  • Professional and knowledgeable clinical staff (e.g., Physician Assistants)
  • Clear communication during follow-up visits

Common complaints

  • Difficulty reaching staff by phone or getting return calls
  • Billing and insurance coding disputes (e.g., diagnostic vs. routine coding)
  • Perceived lack of helpfulness from clinical staff

"I give one star because I can never get anyone on the phone to make an appointment stayed on hold the first time for 45 minutes and another time for 30 minutes."

— LocalityBiz review

"For the follow up I saw PA John Colton. He explained everything in laymens terms, answered all my questions and took his Time with me... I felt I was heard and presented as very knowledgeable and genuinely cared."

— LocalityBiz review

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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