Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John R Groll, MD

Individual provider Specialist · NPI 1396716163

Dr. John R Groll, MD is a Cardiovascular Disease (Cardiology) in Chester, Illinois. Graduated from University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb) in 1988, 38 years ago. Practices with Memorial Hospital, a 30-clinician group and accepts Medicare assignment. Licensed in Illinois and Missouri.

Years since qualifying
38
Trained at
University of Illinois College of Med (CHI/PEOR/ROCK/Chm-Urb)
Licensed in
IL, MO
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1900 State St
Chester, IL 62233-1116
Phone: (618) 826-4581
Fax: (318) 826-5152
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 036-094904 (IL)
Specialist Taxonomy 174400000X · Licence R8J11 (MO)

Record details

NPI number1396716163
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 30, 2006
Last updated in NPPESJuly 20, 2023
Certification dateJuly 20, 2023
Mailing address1028 S Kirkwood Rd Ste A, Kirkwood, MO 63122-7222

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduated 1988 (38 years in practice)
Group practice Memorial Hospital — 30 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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