Quick answers
- Which hospitals does Mostafa A. Sadek work at?
- Medicare's official clinician data lists Mostafa A. Sadek at 1 hospital: Hazel Hawkins Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mostafa A. Sadek see patients?
- Medicare's clinician data lists 1 practice location in Hollister, CA. Call before your visit to confirm the address.
- What is Mostafa A. Sadek's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Mostafa A. Sadek accept Medicare assignment?
- Yes. Medicare's clinician data says Mostafa A. Sadek 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 Mostafa A. Sadek's NPI number?
- 1851610745. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mostafa A. Sadek works
Medicare's Facility Affiliation Data lists Mostafa A. Sadek at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hazel Hawkins Memorial HospitalHollister, CA · Critical Access Hospital · CCN 051337
Practice locations
Addresses where Mostafa A. Sadek is enrolled with Medicare (CMS data updated 2026-10-02).
- 911 Sunset DrHollister, CA 95023
Group practices
Medicare enrollment lists Mostafa A. Sadek as a member of this group (CMS data updated 2026-10-02).
- Hazel Hawkins Memorial Hospital52 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851610745 |
| 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