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About

Gastroenterology Associates is a private, physician-led medical practice specializing in digestive system diseases, with 11 offices across Upstate South Carolina and 4 endoscopy centers. Founded in 1978 and headquartered in Greenville, SC, the practice offers prompt evaluation, diagnosis, and treatment, including in-house labs and advanced endoscopy. They emphasize timely care (urgent cases seen within 24 hours) and low-cost, high-quality services. Key locations include Simpsonville (317 St. Francis Drive Suite 150) and Greenville offices, with additional sites in Spartanburg, Clemson, and more. They employ about 49 people and reported annual revenue around $10.6 million.

Clinic Type

Gastroenterology

Address

Upstate South Carolina (multiple locations)

Phone

(864) 232-7338

Email

Opening Hours

Not published — contact the clinic to confirm hours.

Emergency Care

Urgent cases seen within 24-48 hours

Services Offered

  • Gastroenterology
  • Endoscopy
  • Colorectal cancer screening
  • Colonoscopy
  • G.I. procedures
  • In-house labs
  • Open Access Program
  • Urgent care within 24-48 hours
  • Pediatric GI (not specified)
  • Clinical research (implied by links)
  • Ambulatory surgical center procedures (cost comparison)

Technology & Equipment

  • State-of-the-art endoscopy equipment
  • In-House Labs
  • Open Access scheduling
  • Electronic health records

Team

  • Board-Certified Physicians — Medical team

Insurance & Payment

Office visits, Procedures, Screenings, Colonoscopy, Private pay (implied by “Low-cost & high-quality care”)

Languages Spoken

Pricing

  • Colonoscopy pricing context: ambulatory surgical center cheaper than hospital setting (up to 75% cheaper)

Current Offers

Schedule a screening colonoscopy without an office visit

FAQs

Why choose Gastroenterology Associates?

Largest GI practice in South Carolina; physician-owned; Open Access Program for easy scheduling; providers serve Prisma Hospital System and Pelham Medical Center; access to medical records from hospital systems; Prisma Health Upstate Network member; cost advantages at ambulatory surgical centers.

Photos

What Patients Say

Overall sentiment across review platforms: positive

  • Birdeye: 4.9 out of 5 stars (234 reviews)
  • rater8 (Dr. Jared Geist): 4.7 out of 5 stars (159 ratings)

Patients praise

  • Attentive and caring medical staff
  • Clear explanations of treatment plans
  • Efficient and smooth procedure experiences
  • Good bedside manner

Common complaints

  • Billing disputes and financial handling issues
  • Scheduling errors and delays in treatment

"Best doctor EVER! Caring and truly listens and answers questions. Trust him implicitly!"

rater8 - Patient review of Dr. Jared Geist

"I had a great experience with Cindy Loeb . She really took the time to listen to my concerns and didn't make me feel rushed. The explanation of my treatment plan was clear and easy to follow."

Gastroenterology Associates - Patient testimonial

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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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.

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