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Dr. Mark D. Irwin, MD

Internal Medicine

  • (618) 234-0640

Dr. Irwin's Overview

Dr. Mark D. Irwin graduated from the Southern Illinois University School of Medicine in 1977. He works in Belleville, IL and specializes in Internal Medicine. Dr. Irwin is affiliated with Memorial Hospital.

Dr. Irwin's Experience

Years in Practice: 38

Dr. Irwin's Specialties

Internal Medicine

Dr. Irwin's Education & Training

Medical School: Southern Illinois University School of Medicine; Graduated 1977

Dr. Irwin's Rating

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Overall Rating


  • Explains conditions & treatments
  • Takes time to answer my questions
  • Provides follow-up as needed
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Dr. Irwin's Accepted Insurance

  • Anthem Blue Access PPO
  • Anthem Blue Preferred HMO
  • Anthem Blue Preferred Plus POS
  • Anthem Blue Preferred Select
  • Anthem Direct Access w/HSA MO
  • CIGNA LocalPlus
  • CIGNA Open Access Plus
  • Coventry Health & Life IL - PPO
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Dr. Irwin's Office Information & Appointments

Office Locations

Esse Health IL &
Esse Health Internal Medicine

2900 Frank Scott Pkwy W Ste 904
Belleville, IL 62223
(618) 234-0640


Office Hours and Information

Fax: (314) 851-4475

Practice Website:

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: No

Monday 8:30 AM - 5:00 PM
Tuesday 8:30 AM - 5:00 PM
Wednesday 8:30 AM - 5:00 PM
Thursday 8:30 AM - 5:00 PM
Friday 8:30 AM - 5:00 PM
Saturday Closed
Sunday Closed

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Dr. Irwin's Hospital Affiliations

Office Locations

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