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Clinic Type

Gastroenterology

Address

Willis Knighton Health (Shreveport Gastroenterology providers) - Shreveport, LA

Phone

318-631-9121 / 318-212-8710 (varies by provider)

Email

privacyofficer@wkhs.com

Opening Hours

Not published — contact the clinic to confirm hours.

Telehealth

There are indications of virtual visits offered for some providers (e.g., Krista Jarrett, NP; Dr. T. Ryan Palmer, MD; Dr. Simhadri K. Sastry, MD)

Services Offered

Team

  • Dr. Sathya N. Jaganmohan, MD, MD — Gastroenterologist
  • Dr. Douglas E. Rimmer, Jr., MD, MD — Gastroenterologist
  • Dr. John N. Bienvenu, MD, MD — Gastroenterologist
  • Dr. T. Ryan Palmer, MD, MD — Gastroenterologist
  • Krista Jarrett, NP, NP — Nurse Practitioner
  • Dr. James C. Hobley, MD, MD — Gastroenterologist
  • Dr. Simhadri K. Sastry, MD, MD — Gastroenterologist
  • Megan O. Johnson, PA, PA — Physician Assistant
  • Dr. Sherif Michael, MD, MD — Gastroenterologist
  • Dr. L. Webster Johnson, MD, MD — Gastroenterologist

Insurance & Payment

Languages Spoken

Photos

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

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Shreveport, LA·Gastroenterology

GastroIntestinal Specialists, A.M.C. (GIS) is a private, independent digestive health clinic based in Shreveport, Louisiana, founded in 1979. They operate 7 offices across the United States (all in Louisiana) with HQ at 3217 Mabel Street, Shreveport. Key details: - Industry: Medical Practices; Specializes in gastroenterology - Headquarters: Shreveport, LA; Private ownership - Contact: gisadmin@gis.md; Phone 318-631-9121 - Locations: 7 offices including Shreveport and Bossier City - Website: gis.md - LinkedIn: linkedin.com/company/gastrointestinal-specialists-a-m-c If you’re looking for family-friendly, local GI care in Shreveport, GIS is an established option with multiple Louisiana locations and a long-standing presence in the region.

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Shreveport, LA·Gastroenterology

Willis Knighton Pinnacle Gastroenterology is a private gastroenterology practice focused on medical care and endoscopic services to improve health and quality of life. It operates three US offices, including a Shreveport location at 2551 Greenwood Rd Ste 350, Shreveport, LA 71103, and is part of the Pinnacle Gastroenterology network (headquartered in West Hollywood, CA). The practice emphasizes evidence-based gastrointestinal care, with services likely spanning routine GI consultations and endoscopy. Current core details: private wellness/fitness–adjacent healthcare provider, small team (listed as 1 employee in the profile), active status, and a presence in Shreveport via the Greenwood Rd office. Contact: listed phone numbers include 318-212-8710.

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