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About

Chautauqua Medical Services is part of the GLPP Great Lakes Physician Practice network, a Jamestown, NY–based health care organization with over 20 locations in Chautauqua County. The network links primary care and specialty providers (including Jamestown Area Medical Associate, Lakeshore Orthopedics and Sports Medicine, and Jamestown Primary Care) and collaborates with local hospitals to deliver integrated, accessible care. GLPP operates about 30 staff and reports annual revenue in the $5–$25 million range. The Fredonia area is referenced as a location in the network’s activity, indicating local employment and recruiting efforts in Chautauqua County.

Clinic Type

Internal Medicine

Address

Chautauqua Medical Services, Great Lakes Physician Practice, northern Chautauqua County

Phone

7169343641

Email

Opening Hours

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

Services Offered

  • Primary care
  • Internal Medicine
  • Specialty care
  • Physical therapy

Team

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

Insurance & Payment

Languages Spoken

  • English

FAQs

What specialties are offered?

Internal Medicine and related primary/specialty care.

What are the hours of operation?

Monday - Friday: 8:00AM - 8:00PM; Saturday: 9:00AM - NOON

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Various review aggregators (e.g., Vitals, Mappca, Beautihost): Generally mixed or unrated on major platforms, with specific provider ratings varying significantly (e.g., 1.7 to 4.2 out of 5) (Low volume of aggregated reviews on major sites)

Patients praise

  • Some individual providers are highly regarded and direct in their approach to patient care
  • Professional and friendly demeanor of some staff members
  • Clean environment

Common complaints

  • Unresponsive communication/failure to return calls
  • Long wait times for appointments and during office visits
  • Scheduling errors and frequent rescheduling of appointments
  • Perceived lack of care and accountability by some staff members
  • Difficulty accessing care when primary care physicians are unavailable

"Dr. BARTHOLOMEW is the BEST! He is direct and not afraid to tell you when you are not doing yourself any good."

Mappca Patient Review

"Absolutely terrible place, do not go here. Certain members of the staff are rude, complacent, and nonchalant. The staff involved in scheduling do not know how to create a working schedule for patients and their doctors."

Beautihost Patient 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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