Sumter Gastroenterology

Gastroenterology • Sumter, SC

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About

Sumter Gastroenterology in Sumter, SC offers gastroenterology services including colon cancer screening, chronic care management, infusion therapy, pediatric gastroenterology, virtual telemedicine, and clinical trials. The practice has three gastroenterologists and three nurse practitioners on staff.

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Clinic Type

Gastroenterology

Address

641 W Wesmark Blvd, Sumter, SC 29150

Phone

803-905-6944

Email

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Opening Hours

Monday – Thursday 9:00AM – 5:00PM; Friday 8:00AM – 4:00PM

Website

https://gialliance.com/sumter-gastroenterology/

Emergency Care

9-1-1 for emergencies

Services Offered

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Team

Floyd L. Angus, M.D. F.A.C.G. — Gastroenterologist
Kent N. Cunningham, M.D. — Gastroenterologist
Scott R. McDuffie, M.D., AGAF — Gastroenterologist
William G. Byrd (Greg), APRN — Adult Nurse Practitioner
Katherine Peil, FNP-C — Family Nurse Practitioner
Chasity Shadoan, FNP-C — Family Nurse Practitioner

Insurance & Payment

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Languages Spoken

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Social Media

Twitter Facebook Linkedin

Photos

What Patients Say

Overall sentiment across review platforms: positive

WebMD / Healthgrades for Dr. Kent Cunningham: 4.2 to 4.5/5 stars (5 to 6 ratings)
WebMD / Vitals for Dr. Floyd Angus: 4.3 to 4.5/5 stars (8 to 10 ratings)
WebMD for Dr. Frank Martin: 5.0/5 stars (5 ratings)

Patients praise

Professional and approachable staff
Thorough explanations of conditions and treatments
Attentive follow-up care
Knowledgeable physicians

Common complaints

Limited mentions of negative experiences, primarily occasional low ratings on platforms like Healthgrades

"I was told if I ever needed a GI to go see Dr. Cunningham... he was kind and patient as well as very soft spoken. You could do no better in Sumter for a GI."

— Vitals review for Dr. Kent Cunningham

"I found Dr Angus to be not only professional but very approachable He did not rush through the appointment and answered all my questions as well as put me at ease"

— Vitals review for Dr. Floyd Angus

"I had a fantastic experience during my recent visit. The staff was incredibly friendly and made me feel at ease right from the start. The doctor took the time to explain everything in detail..."

— Patient review for Sumter Gastroenterology (via Edan.io)

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