Quick answers
- Which hospitals does Ammar Mahmoud work at?
- Medicare's official clinician data lists Ammar Mahmoud at 2 hospitals: Ascension NE Wisconsin - St Elizabeth Campus and St Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ammar Mahmoud see patients?
- Medicare's clinician data lists 3 practice locations, including De Pere, WI and Bangor, ME. Call before your visit to confirm the address.
- What is Ammar Mahmoud's specialty?
- Medicare lists Pain Management as the primary specialty, and also Anesthesiology.
- Does Ammar Mahmoud accept Medicare assignment?
- Yes. Medicare's clinician data says Ammar Mahmoud 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 Ammar Mahmoud?
- (920) 276-8600, as listed in official Medicare / NPI Registry data.
- What is Ammar Mahmoud's NPI number?
- 1235578485. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ammar Mahmoud works
Medicare's Facility Affiliation Data lists Ammar Mahmoud at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension NE Wisconsin - St Elizabeth CampusAppleton, WI · Acute Care Hospital · CCN 520009
- St Joseph HospitalBangor, ME · Acute Care Hospital · CCN 200001
Practice locations
Addresses where Ammar Mahmoud is enrolled with Medicare (CMS data updated 2026-10-02).
- 1716 Lawrence Dr, Suite 103De Pere, WI 54115 (920) 276‑8600
- 360 BroadwayBangor, ME 04401 (207) 907‑1770
- 498 Essex St, Suite 102Bangor, ME 04401 (207) 830‑2739
Group practices
Medicare enrollment lists Ammar Mahmoud as a member of these groups (CMS data updated 2026-10-02).
- St Joseph Hospital199 clinicians in the group
- Alleviate Pain and Spine, SC8 clinicians in the group
- Apex Interventional Pain Specialists PC2 clinicians in the group
Specialties
- Pain Managementprimary
- Anesthesiologyalso
Other pain management doctors in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235578485 |
| 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