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About

St. Mary’s Gastroenterology Center (part of St. Mary’s Healthcare Amsterdam) is a nonprofit healthcare provider in Amsterdam, NY, delivering gastrointestinal care as part of a broader hospital system. Key details: - Affiliation: St. Mary’s Healthcare Amsterdam (nonprofit hospital and health system) - Location: 427 Guy Park Ave, Amsterdam, NY 12010 (HQ for the organization) - Services: Gastroenterology through the system’s expanded offerings (linked to the organization’s growth in specialty care) - Population served: Patients in Amsterdam and the Mohawk Valley, with a focus on comprehensive care within a community hospital setting - Contact: Main line 1-518-842-1900 If you’re seeking specifics about the Amsterdam gastroenterology team (e.g., providers, appointment scheduling, procedures like GI endoscopy, or contact for the gastroenterology center), I can refine with more targeted details.

Clinic Type

Gastroenterology

Address

Medical Office Building, Floor 2/Suite 201, 425 Guy Park Avenue, Amsterdam, NY 12010

Phone

(518) 843-1240

Email

humanresourcesall@nysmha.org

Opening Hours

Monday–Friday 8AM–4:30PM

Services Offered

  • Gastroenterology
  • Colonoscopy
  • Colon cancer screening
  • Digestive disease treatment

Team

  • Michael Coles, MD — MD, Gastroenterology
  • Diane Gagliardi, MSN, AGPCNP-BC, RN — MSN, AGPCNP-BC, RN
  • Garth Garramone, MD, FACP — MD, FACP

Insurance & Payment

Languages Spoken

  • English

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • US News & World Report: 3/5 (for Dr. Christopher C. Ashley) (6 reviews)
  • WebMD: 4.5/5 (Overall rating for Dr. Michael Finnegan) (26 ratings (with 1 written review))
  • Healthgrades: 60% (Hospital-wide patient experience rating) (N/A)

Patients praise

  • Staff perceived as courteous
  • Clear instructions provided during visits

Common complaints

  • Reports of perceived lack of interest or incompetence from individual providers
  • Hospital-wide patient experience ratings below the national average

"The guy doesn't show any interest in treating me. Don't know if he's just lazy or incompetent. I wouldn't recommend him to anyone."

WebMD review of Dr. Michael Finnegan

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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Nathan Littauer Hospital (NLH) in Gloversville, NY, operates as a private hospital in the Hospitals and Health Care sector with 119 employees and annual revenue around $118M. The organization is linked to Tanner Community Development Corporation and offers a broad range of medical services and specialties through NLH’s facilities, with four offices including Gloversville (HQ) and a presence in nearby New York locations. If you’re specifically looking for Gastroenterology at Nathan Littauer: - NLH’s leadership includes roles in Primary Specialty Care, Performance Improvement, and Community Education, suggesting a broad clinical scope, but no explicit gastroenterology team or services are named here. Recommendation: - Visit NLH’s website (nlh.org) or contact NLH directly at (518) 725-8621 or info@nlh.org to confirm whether they offer gastroenterology services, related specialists (gastroenterologists, GI surgeons), procedures (EGD/colonoscopy), and appointment availability. - If you need a gastroenterology-focused facility nearby, consider also checking listed competitors or regional hospitals (e.g., Ellis Medicine, Albany Medical Center) for GI services.

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