Dr. John Mark Flack, MD - Springfield, IL - Internal Medicine, Cardiovascular Disease

Dr. John Mark Flack, MD

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Internal Medicine, Cardiovascular Disease
Springfield, IL 62702 (5 other locations)
Dr. John Mark Flack, MD is a health care provider primarily located in Springfield, IL. He has 42 years of experience. His specialties include Internal Medicine, Cardiovascular Disease.

Quick Facts

  • accepting new patients
  • 42 years of experience
  • 40 insurances accepted
  • speaks English
  • University Of Oklahoma College Of Medicine
  • 2 specialties
  • 15 areas of expertise
  • 2 board certifications
  • 6 locations


Dr. John Mark Flack has 6 locations

Southern Illinois University

751 N Rutledge St Springfield, IL 62702

Siu Pulmonology

751 N Rutledge St Ste 2100 Springfield, IL 62702
Accepting New Patients

Siu Heart And Vascular Center

747 N Rutledge St Fl 4 Springfield, IL 62702

Saint Johns Hospital

800 E Carpenter St Springfield, IL 62769

Memorial Medical Center

701 N 1st St Springfield, IL 62781

Siu Gastroenterology

751 N Rutledge St Ste 1100 Springfield, IL 62702

Insurance Plans Accepted by Dr. John Mark Flack

  • Aetna Choice POS II
  • Aetna Elect Choice EPO Open Access
  • Aetna HMO
  • Aetna Innovation Health Aetna Premier Care Network Plus
  • Aetna Managed Choice POS Open Access
  • Aetna Open Choice PPO
  • Aetna Savings Plus of IL OA Select
  • Aexcel PPO
  • Anthem Blue Access PPO
  • BCBS Blue Card PPO
  • BCBS Blue Choice Preferred PPO
  • BCBS IL Blue Advantage HMO - PCPs Only
  • BCBS IL Blue Choice Select PPO
  • BCBS IL Blue Print PPO
  • BCBS IL HMO - PCPs Only
  • BCBS KC SolutionsCAP
  • BCBS KS Blue Choice
  • BCBS KS Blue Choice Preferred Care
  • Blue Advantage HMO - PCPs Only
  • Blue Choice Preferred Care
  • Blue Choice Preferred PPO
  • Blue Choice Select PPO
  • Health Alliance HMO/POS
  • Health Alliance PPO
  • HMO illinois - PCPs Only
  • Humana / ChoiceCare Network PPO
  • Humana Choice POS
  • Humana ChoiceCare Network PPO
  • Humana Preferred PPO
  • Humana/ChoiceCare+ Network PPO
  • Medica Choice With UHC
  • UHC Choice Plus POS
  • UHC Navigate HMO
  • UHC Nexus Open Access
  • UHC Options PPO


Dr. John Mark Flack has the following 2 specialties

Specialty Expertise

Dr. John Mark Flack has the following 15 areas of expertise

  • Heartburn
  • Check-up
  • High Blood Pressure (Hypertension)
  • Diabetes, Type 2
  • Physical
  • Arteriosclerosis (Arterial Disease)
  • Cardiovascular Disease
  • Myocardial Infarction
  • Vaccination
  • Immunization
  • Obesity
  • Diabetes
  • Coronary Disease
  • Metabolic Syndrome X
  • Weight Loss


University Of Oklahoma College Of Medicine

Graduated in 1982

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