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John Flack, MD, Internal Medicine, Springfield, IL

John Mark Flack MD MPH (He/Him)


Chair, Departments of Medicine and Population Science and Policy Southern Illinois University

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  • 751 N Rutledge StSte 1100Springfield, IL 62702

  • Phone+1 217-545-8000

  • Fax+1 217-545-4735

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Summary

  • John M. Flack, MD, MPH is an Internal Medicine and Hypertension specialist/cardiovascular epidemiologist based in Springfield, IL. He completed his education at the University of Oklahoma College of Medicine and his residency in Internal Medicine at the University of Oklahoma Health Sciences Center where he was elected to the Alpha Omega Alpha Honor Society. Dr. Flack also served as Chief Medicine Resident at the University of Oklahoma. Dr. Flack has over 250 peer-reviewed publications in the field of hypertension, hypertension therapeutics, hypertension in African Americans, resistant/refractory hypertension and device-based hypertension treatments. His research focuses on these same areas. He is an Associate Editor at the journal Hypertension, the premier hypertension journal in the world. Dr. Flack also authored the chapter on Arterial Hypertension in the current edition of Goldman-Cecils textbook of Medicine. Dr. Flack has been recognized with honors such as Regional Top Doctor, Best Doctor, Super Doctor, Crain's Health Care Hero and Michiganian of the Year. He is the Sergio Rabinovich Endowed Chair of Internal Medicine and the Chair of the Departments of Medicine and Population Science and Policy at Southern Illinois University. Dr. Flack also serves as President of the American Hypertension Specialist Certification Program.

Education & Training

  • University of Oklahoma Health Sciences Center
    University of Oklahoma Health Sciences CenterResidency, Internal Medicine, 1982 - 1986
  • University of Oklahoma College of Medicine
    University of Oklahoma College of MedicineClass of 1982

Certifications & Licensure

  • IL State Medical License
    IL State Medical License 2015 - 2026
  • MI State Medical License
    MI State Medical License 1997 - 2016
  • NC State Medical License
    NC State Medical License 1994 - 1998
  • MN State Medical License
    MN State Medical License 1988 - 1995
  • OK State Medical License
    OK State Medical License 1983 - 1989
  • Internal Medicine
    American Board of Internal Medicine Internal Medicine

Awards, Honors, & Recognition

  • Regional Top Doctor Castle Connolly, 2014
  • Super Doctor SuperDoctors.com

Clinical Trials

Publications & Presentations

PubMed

Lectures

  • Women in Medicine: A New Era of Leadership 
    2019 ACP Internal Medicine Meeting, Philadelphia - 4/10/2019

Press Mentions

  • SIU Medicine Expands Kidney Care Services
    SIU Medicine Expands Kidney Care ServicesApril 4th, 2025
  • AHA Scientific Statement on Renal Denervation to Treat Hypertension Published
    AHA Scientific Statement on Renal Denervation to Treat Hypertension PublishedAugust 9th, 2024
  • Are Heart Rate and Blood Pressure the Same? No, and It's Important to Understand Why
    Are Heart Rate and Blood Pressure the Same? No, and It's Important to Understand WhyMay 16th, 2023
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Grant Support

  • Obesity, Nitric Oxide, Oxidative Stress, And SALT SensitivityNational Institute Of Environmental Health Sciences2007
  • Administrative CoreNational Institute Of Environmental Health Sciences2007
  • Center For African American Urban HealthNational Institute Of Environmental Health Sciences2003–2007
  • Blood Pressure Lowering Mechanisms Of Angiotensin Converting EnzymeNational Center For Research Resources1996–1997
  • Study Coronary Heart Disease Risk In Young AdultsDivision Of Epidemiology And Clinical Applications1991–1994

Research History

  • Post-doctdoral Research FellowNIH post-doctoral fellow in cardiovascular epidemiology at the University of Minnesota School of Public Health, Division of Epidemiology; Richard Grimm, MD, PHD (Primary Mentor)1988 - 1990

Professional Memberships

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