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

Dr. Jill Elizabeth Coster, DO

Individual provider Family Medicine Physician · NPI 1205462942

Dr. Jill Elizabeth Coster, DO is a Family Practice in O Fallon, Illinois. Graduated from Edward via Col of Osteo Medicine-Virginia Campus in 2020, 6 years ago. Practices with Southern Illinois Healthcare Foundation Inc, a 118-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
6
Trained at
Edward via Col of Osteo Medicine-Virginia Campus
Licensed in
IL
In the registry since
2020
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

3 Saint Elizabeth Blvd Ste 4000
O Fallon, IL 62269-1284
Phone: (618) 256-9355
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 036.164563 (IL)

Record details

NPI number1205462942
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 13, 2020
Last updated in NPPESOctober 12, 2023
Certification dateJuly 24, 2023
Mailing address3 Saint Elizabeth Blvd Ste 4000, O Fallon, IL 62269-1284

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolEDWARD VIA COL OF OSTEO MEDICINE-VIRGINIA CAMPUS
Graduated 2020 (6 years in practice)
Group practice Southern Illinois Healthcare Foundation Inc — 118 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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