Quick answers
- Which hospitals does Jill E. Coster work at?
- Medicare's official clinician data lists Jill E. Coster at 1 hospital: HSHS St Elizabeth's Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jill E. Coster see patients?
- Medicare's clinician data lists 1 practice location in O Fallon, IL. Call before your visit to confirm the address.
- What is Jill E. Coster's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Jill E. Coster accept Medicare assignment?
- Yes. Medicare's clinician data says Jill E. Coster accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Jill E. Coster?
- (618) 233-5480, as listed in official Medicare / NPI Registry data.
- What is Jill E. Coster's NPI number?
- 1205462942. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jill E. Coster works
Medicare's Facility Affiliation Data lists Jill E. Coster at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- HSHS St Elizabeth's HospitalO Fallon, IL · Acute Care Hospital · CCN 140187
Practice locations
Addresses where Jill E. Coster is enrolled with Medicare (CMS data updated 2026-10-02).
- 3 Saint Elizabeth Blvd, Suite 4000O Fallon, IL 62269 (618) 233‑5480
Group practices
Medicare enrollment lists Jill E. Coster as a member of this group (CMS data updated 2026-10-02).
- Southern Illinois Healthcare Foundation Inc119 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in O Fallon
Clinicians with the same Medicare primary specialty in O Fallon, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Edward Via Col Of Osteo Medicine-Virginia Campus |
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1205462942 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians