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About

HSHS Medical Group Family Medicine – Mt. Zion, Decatur, IL is part of the Hospital Sisters Health System network. The page highlights: - Service focus: Family medicine within the HSHS Medical Group in central Illinois. - Location context: Mt. Zion/Decatur area in Illinois, with ties to the broader HSHS system and affiliated facilities (e.g., St. Elizabeth’s, Memorial Health, Springfield Clinic, St. John’s/St. Mary’s hospitals). - Network connections: Alumni and talent sources indicate close collaboration with local hospitals and clinics such as SSM Health, Memorial Health, Springfield Clinic, and HSHS hospitals. - Practical details: HQ and U.S. offices are listed in Springfield, IL, with multiple regional mentions, signaling administrative and referral links for the Mt. Zion/Decatur practice. Note: The provided highlights emphasize the broader HSHS footprint and partner networks rather than a standalone, detailed profile for "Family Medicine – Mt. Zion." If you need directions, provider roster, or appointment steps for that specific Mt. Zion location, I can fetch or format that concisely.

Clinic Type

Primary Care

Address

4965 East Lost Bridge Road, Decatur, IL 62521

Phone

217-864-5531

Email

Opening Hours

7:00 AM - 5:00 PM

Services Offered

  • Primary care clinic
  • Family medicine
  • Immunizations
  • X-ray

Team

  • Amy L McLain — APRN
  • Larisa Shils — PA
  • Bonnie J Coburn — APRN

Insurance & Payment

Languages Spoken

  • English

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Vitals: 4.7/5 for Dr. Dennis D. Costerisan (N/A)
  • Vitals: 2.6/5 for Dr. Larisa Georgy Ciatlos Deak (N/A)

Patients praise

  • Some individual physicians at the practice have received high ratings

Common complaints

  • General patient rights and grievance process documented by HSHS for all facilities

"Be the first to leave a review"

WebMD patient profile for the facility

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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