Quick answers
- Which hospitals does Stephen T. Steiner work at?
- Medicare's official clinician data lists Stephen T. Steiner at 4 hospitals: Advocate Illinois Masonic Medical Center, John H Stroger Jr Hospital, Provident Hospital of Chicago and Sarah Bush Lincoln Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stephen T. Steiner see patients?
- Medicare's clinician data lists 4 practice locations, including Mattoon, IL and Chicago, IL. Call before your visit to confirm the address.
- What is Stephen T. Steiner's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Stephen T. Steiner accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen T. Steiner 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 Stephen T. Steiner?
- (217) 258-2190, as listed in official Medicare / NPI Registry data.
- What is Stephen T. Steiner's NPI number?
- 1023102951. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Stephen T. Steiner works
Medicare's Facility Affiliation Data lists Stephen T. Steiner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Illinois Masonic Medical CenterChicago, IL · Acute Care Hospital · CCN 140182
- John H Stroger Jr HospitalChicago, IL · Acute Care Hospital · CCN 140124
- Provident Hospital of ChicagoChicago, IL · Acute Care Hospital · CCN 140300
- Sarah Bush Lincoln Health CenterMattoon, IL · Acute Care Hospital · CCN 140189
Practice locations
Addresses where Stephen T. Steiner is enrolled with Medicare (CMS data updated 2026-10-02).
- 1000 Health Ctr Dr, Suite 204Mattoon, IL 61938 (217) 258‑2190
- 1901 W Harrison StChicago, IL 60612 (312) 633‑7292
- 2835 N Sheffield Ave, Suite 303Chicago, IL 60657 (773) 368‑3164
- 836 W Wellington AveChicago, IL 60657 (773) 975‑1600
Group practices
Medicare enrollment lists Stephen T. Steiner as a member of these groups (CMS data updated 2026-10-02).
- Cook County788 clinicians in the group
- Sarah Bush Lincoln Health Center419 clinicians in the group
- Chicago Gastro LLC5 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Mattoon
Clinicians with the same Medicare primary specialty in Mattoon, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Nebraska College Of Medicine |
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023102951 |
| 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