Quick answers
- Which hospitals does Hatim A. Mahmood work at?
- Medicare's official clinician data lists Hatim A. Mahmood at 5 hospitals: Barnes Jewish Hospital, HSHS St Elizabeth's Hospital, Memorial Hospital, Touchette Regional Hospital Inc and Washington County Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Hatim A. Mahmood see patients?
- Medicare's clinician data lists 2 practice locations, including Belleville, IL and Cahokia Heights, IL. Call before your visit to confirm the address.
- What is Hatim A. Mahmood's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Interventional Cardiology.
- Does Hatim A. Mahmood accept Medicare assignment?
- Yes. Medicare's clinician data says Hatim A. Mahmood 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 Hatim A. Mahmood?
- (618) 233-5480, as listed in official Medicare / NPI Registry data.
- What is Hatim A. Mahmood's NPI number?
- 1174556583. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Hatim A. Mahmood works
Medicare's Facility Affiliation Data lists Hatim A. Mahmood at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · CCN 260032
- HSHS St Elizabeth's HospitalO Fallon, IL · Acute Care Hospital · CCN 140187
- Memorial HospitalBelleville, IL · Acute Care Hospital · CCN 140185
- Touchette Regional Hospital IncCentreville, IL · Acute Care Hospital · CCN 140077
- Washington County HospitalNashville, IL · Critical Access Hospital · CCN 141308
Practice locations
Addresses where Hatim A. Mahmood is enrolled with Medicare (CMS data updated 2026-10-02).
- 180 S 3rd St, Suite 104Belleville, IL 62220 (618) 233‑5480
- 5900 Bond AveCahokia Heights, IL 62207 (618) 332‑3060
Group practices
Medicare enrollment lists Hatim A. Mahmood as a member of these groups (CMS data updated 2026-10-02).
- Southern Illinois Healthcare Foundation Inc119 clinicians in the group
- Touchette Regional Hospital Inc47 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Illinois →
Other cardiologists in Belleville
Clinicians with the same Medicare primary specialty in Belleville, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Southern Illinois University School Of Medicine |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174556583 |
| 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