Quick answers
- Which hospitals does Osama Hallak work at?
- Medicare's official clinician data lists Osama Hallak at 3 hospitals: Barnes Jewish Hospital, Lutheran Hospital of Indiana and Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Osama Hallak see patients?
- Medicare's clinician data lists 2 practice locations, including Belleville, IL and Fort Wayne, IN. Call before your visit to confirm the address.
- What is Osama Hallak's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Osama Hallak accept Medicare assignment?
- Yes. Medicare's clinician data says Osama Hallak 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 Osama Hallak?
- (618) 233-3066, as listed in official Medicare / NPI Registry data.
- What is Osama Hallak's NPI number?
- 1154852614. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Osama Hallak works
Medicare's Facility Affiliation Data lists Osama Hallak 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
- Lutheran Hospital of IndianaFort Wayne, IN · Acute Care Hospital · CCN 150017
- Memorial HospitalBelleville, IL · Acute Care Hospital · CCN 140185
Practice locations
Addresses where Osama Hallak is enrolled with Medicare (CMS data updated 2026-10-02).
- 4600 Memorial Dr, Suite W1Belleville, IL 62226 (618) 233‑3066
- 7916 W Jefferson BlvdFort Wayne, IN 46804 (260) 432‑2297
Group practices
Medicare enrollment lists Osama Hallak as a member of these groups (CMS data updated 2026-10-02).
- Fairview Heights Medical Group SC444 clinicians in the group
- Lutheran Medical Group LLC252 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 |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154852614 |
| 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