Quick answers
- Which hospitals does Ahmad O. Rez work at?
- Medicare's official clinician data lists Ahmad O. Rez at 2 hospitals: Missouri Baptist Medical Center and SSM St Clare Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ahmad O. Rez see patients?
- Medicare's clinician data lists 5 practice locations, including Fenton, MO, Saint Louis, MO and Victorville, CA. Call before your visit to confirm the address.
- What is Ahmad O. Rez's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
- Does Ahmad O. Rez accept Medicare assignment?
- Yes. Medicare's clinician data says Ahmad O. Rez 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 Ahmad O. Rez?
- (636) 496-2000, as listed in official Medicare / NPI Registry data.
- What is Ahmad O. Rez's NPI number?
- 1356537179. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ahmad O. Rez works
Medicare's Facility Affiliation Data lists Ahmad O. Rez at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Missouri Baptist Medical CenterSaint Louis, MO · Acute Care Hospital · CCN 260108
- SSM St Clare Health CenterFenton, MO · Acute Care Hospital · CCN 260081
Practice locations
Addresses where Ahmad O. Rez is enrolled with Medicare (CMS data updated 2026-10-02).
- 1015 Bowles AveFenton, MO 63026 (636) 496‑2000
- 1110 Highlands Plaza Dr ESaint Louis, MO 63110 (314) 273‑0195
- 15248 11th StVictorville, CA 92395 (760) 245‑8691
- 2630 Hwy KO Fallon, MO 63368 (636) 240‑5454
- 3015 N Ballas RdSaint Louis, MO 63131 (314) 996‑5772
Group practices
Medicare enrollment lists Ahmad O. Rez as a member of these groups (CMS data updated 2026-10-02).
- Galen Inpatient Physicians PC1,077 clinicians in the group
- Physician Groups LC521 clinicians in the group
Specialties
- Internal Medicineprimary
- Hospitalistalso
Other internal medicine doctors in Fenton
Clinicians with the same Medicare primary specialty in Fenton, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356537179 |
| 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