Overview
John Flack is a primary care provider, practicing in Internal Medicine in Springfield, Illinois. Dr. Flack has been practicing medicine for over 44 years is highly rated in 3 conditions, according to our data. His top areas of expertise are Hypertension, Hypertensive Heart Disease, Hyperaldosteronism, and Familial Hyperaldosteronism.
His clinical research consists of co-authoring 115 peer reviewed articles and participating in 4 clinical trials. MediFind looks at clinical research from the past 15 years.
Graduate Year
Specialties
Licenses
Hospital Affiliations
Languages Spoken
Gender
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- INSURANCE PLAN
- MEDICARE MAPD
- MEDICARE PDP
- OTHER COMMERCIAL
- OTHER MEDICARE
- PPO
- EPO
- HMO
- PPO
- MEDICARE MAPD
- OTHER MEDICARE
- MEDICARE PDP
- EPO
- HMO
- POS
- PPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- HMO
- INDEMNITY
- POS
- PPO
- OTHER MANAGED MEDICAID
- OTHER MEDICAID
- STATE MEDICAID
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
751 N Rutledge St, Springfield, IL 62702
747 N Rutledge St Rm 4055, Springfield, IL 62702
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
4 Clinical Trials
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Frequently Asked Questions about Dr. John Flack
How do I make an appointment with Dr. John Flack?
You can book an appointment with Dr. John Flack by calling their office at 217-545-8000. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Dr. John Flack a top-rated expert for Hypertension?
MediFind is an objective health platform that identifies experts based on real-world data. Dr. John Flack is classified as an Elite expert for Hypertension, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.
What conditions does Dr. John Flack specialize in?
While Dr. John Flack is a Internal Medicine, they have specific expertise in Hypertension, Hypertensive Heart Disease, and Hyperaldosteronism. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Internal Medicine.
Does Dr. John Flack participate in research or clinical trials?
Yes. Dr. John Flack has published 115 articles and abstracts on conditions like Hypertension. You can view a list of Dr. John Flack's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.
Does Dr. John Flack accept my insurance?
Dr. John Flack accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 217-545-8000 to verify that your specific plan is currently accepted before your visit.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Elite
- HypertensionDr. Flack isElite. Learn about Hypertension.
- Distinguished
- Hypertensive Heart DiseaseDr. Flack isDistinguished. Learn about Hypertensive Heart Disease.
- Advanced
- HyperaldosteronismDr. Flack isAdvanced. Learn about Hyperaldosteronism.
- Experienced
- CalcinosisDr. Flack isExperienced. Learn about Calcinosis.
- Chronic Kidney DiseaseDr. Flack isExperienced. Learn about Chronic Kidney Disease.
- Coronary Heart DiseaseDr. Flack isExperienced. Learn about Coronary Heart Disease.
- Familial DysautonomiaDr. Flack isExperienced. Learn about Familial Dysautonomia.
- Familial HyperaldosteronismDr. Flack isExperienced. Learn about Familial Hyperaldosteronism.
- Familial HypertensionDr. Flack isExperienced. Learn about Familial Hypertension.