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About

Summary: Chautauqua Medical Services is part of the Great Lakes Physician Practice (GLPP) network, which includes a group of family providers and specialists in the Jamestown area. GLPP comprises primary care, specialty physicians, surgeons, and coordination with local hospitals to deliver comprehensive care. The network includes Jamestown Area Medical Associate, Chautauqua Medical Services, Lakeshore Orthopedics and Sports Medicine, and Jamestown Primary Care. GLPP operates 4 offices in the United States, with headquarters in Jamestown, NY, and locations in Jamestown and Silver Creek, NY. If you’re specifically looking for Chautauqua Medical Services in Dunkirk, NY: the provided material doesn’t list a Dunkirk address or explicit Dunkirk location. It notes four GLPP offices in the Jamestown area (HQ in Jamestown, NY) and one Silver Creek address. For Dunkirk, consider contacting GLPP directly or checking their site for a Dunkirk-affiliated provider or nearby office to confirm availability.

Clinic Type

Internal Medicine

Address

Chautauqua Medical Services, GLPP (northern Chautauqua County)

Phone

716-934-3641

Email

Opening Hours

Monday, Wednesday, Friday: 8:00AM - 5:00PM; Monday - Friday: 8:00AM - 5:00PM; Monday - Friday: 8:00AM - 5:00PM; Monday - Friday: 8:00AM - 5:00PM

Telehealth

GLPP Video Visit available

Services Offered

  • Primary Care
  • Specialty Care
  • Internal Medicine
  • Advanced Practice Providers
  • Physical Therapy

Team

  • Hyder Alam, MD — Internal Medicine physician
  • Shaden Alfallay, MD — Internal Medicine physician
  • Steven Barnes, DO — Internal Medicine physician
  • Anthony Bartholomew, MD — Internal Medicine physician
  • Sarah Bartholomew, PA-C — Internal Medicine provider
  • Michael Guilding, MD — Internal Medicine physician
  • Tyler Gustafson, RPA-C — Internal Medicine provider
  • Courtney Hammond, PA-C — Internal Medicine provider
  • John M. LaMancuso, MD, FACP — Internal Medicine physician
  • Andrew Landis, MD — Internal Medicine physician
  • Stephen Laskowski, DO — Internal Medicine physician
  • Susan Mackowiak, CRNP — Internal Medicine provider
  • Andrew Manoharan, MD — Internal Medicine physician
  • Hamza Muhammad, DO — Internal Medicine physician
  • Evadne C. Ong, MD — Internal Medicine physician
  • Xuan Huy Phan, MD — Internal Medicine physician
  • Carl Roth, DO — Internal Medicine physician
  • Mary Rudloff, PA-C — Internal Medicine provider
  • Beth Wlodarek, PA-C — Internal Medicine provider

Insurance & Payment

Languages Spoken

  • English

FAQs

What are the office hours?

Hours of Operation: Monday, Wednesday, Friday: 8:00AM - 5:00PM; Monday - Friday: 8:00AM - 5:00PM; Monday - Friday: 8:00AM - 5:00PM; Monday - Friday: 8:00AM - 5:00PM

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Third-party online review platforms (e.g., mappca.com, beautihost.com)": 1/5 (representative of negative user submissions found in online reviews)" (Multiple negative experiences cited on third-party aggregator sites")

Patients praise

  • Some patients report friendly and knowledgeable staff
  • Some individual physicians are highly regarded by patients
  • Good accessibility for message responses and appointments for some patients

Common complaints

  • Difficulty with appointment scheduling and frequent rescheduling
  • Lack of follow-up or returned phone calls from staff
  • Long wait times at the office
  • Perceived lack of accountability or unprofessional staff behavior
  • Limited access to acute care if the primary care provider is unavailable

"What I did not like and this happened a few times, would be when they tell you you will get a call back. It would be fine if they actually called back... I waited 3 days for a call back and never got it. Naturally I took things into my own hands and got the stitches removed and quit the script. Things are fine now but it really made me feel unimportant..."

mappca.com review"

"It took me 8 months to get in to see my PCP for an annual after 5 reschedules (typically calling the day before as a notice), and appointments are regularly rescheduled. Additionally, on three separate occasions I was scheduled for a specific day and time, only to show up and be told they scheduled me for a different day... Avoid this pace at all costs if you value your health."

beautihost.com 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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