Quick answers
- Which hospitals does Nizar Hallak work at?
- Medicare's official clinician data lists Nizar Hallak at 2 hospitals: MaineHealth Mid Coast Hospital and Trident Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nizar Hallak see patients?
- Medicare's clinician data lists 3 practice locations, including Brunswick, ME, Portland, ME and North Charleston, SC. Call before your visit to confirm the address.
- What is Nizar Hallak's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Nizar Hallak accept Medicare assignment?
- Yes. Medicare's clinician data says Nizar 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 Nizar Hallak?
- (207) 406-7300, as listed in official Medicare / NPI Registry data.
- What is Nizar Hallak's NPI number?
- 1861627697. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nizar Hallak works
Medicare's Facility Affiliation Data lists Nizar Hallak at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- MaineHealth Mid Coast HospitalBrunswick, ME · Acute Care Hospital · CCN 200021
- Trident Medical CenterCharleston, SC · Acute Care Hospital · CCN 420079
Practice locations
Addresses where Nizar Hallak is enrolled with Medicare (CMS data updated 2026-10-02).
- 121 Medical Ctr Dr, Suite 3400Brunswick, ME 04011 (207) 406‑7300
- 22 Bramhall StPortland, ME 04102
- 9229 University Blvd, Suite F2cNorth Charleston, SC 29406 (843) 574‑5770
Group practices
Medicare enrollment lists Nizar Hallak as a member of these groups (CMS data updated 2026-10-02).
- MaineHealth2,633 clinicians in the group
- Coastal Carolina Multispecialty Associates LLC49 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Brunswick
Clinicians with the same Medicare primary specialty in Brunswick, ME — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861627697 |
| 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