Quick answers
- Which hospitals does Mahmoud Abdallah work at?
- Medicare's official clinician data lists Mahmoud Abdallah at 2 hospitals: Garden Grove Hospital & Medical Center and West Anaheim Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mahmoud Abdallah see patients?
- Medicare's clinician data lists 2 practice locations, including Garden Grove, CA and Westminster, CA. Call before your visit to confirm the address.
- What is Mahmoud Abdallah's specialty?
- Medicare lists Pulmonary Disease as the primary specialty, and also Critical Care (Intensivists) and Internal Medicine.
- Does Mahmoud Abdallah accept Medicare assignment?
- Yes. Medicare's clinician data says Mahmoud Abdallah 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 Mahmoud Abdallah?
- (714) 636-9852, as listed in official Medicare / NPI Registry data.
- What is Mahmoud Abdallah's NPI number?
- 1871014027. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mahmoud Abdallah works
Medicare's Facility Affiliation Data lists Mahmoud Abdallah at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Garden Grove Hospital & Medical CenterGarden Grove, CA · Acute Care Hospital · CCN 050230
- West Anaheim Medical CenterAnaheim, CA · Acute Care Hospital · CCN 050426
Practice locations
Addresses where Mahmoud Abdallah is enrolled with Medicare (CMS data updated 2026-10-02).
- 12462 Brookhurst St, Suite AandbGarden Grove, CA 92840 (714) 636‑9852
- 7955 Westminster BlvdWestminster, CA 92683 (714) 379‑3221
Group practices
Medicare enrollment lists Mahmoud Abdallah as a member of this group (CMS data updated 2026-10-02).
- Pathway Medical Group Inc18 clinicians in the group
Specialties
Other pulmonologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Graduation year | 2017 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871014027 |
| 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