Quick answers
- Which hospitals does Sami B. Hamamji work at?
- Medicare's official clinician data lists Sami B. Hamamji at 1 hospital: Providence St. Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sami B. Hamamji see patients?
- Medicare's clinician data lists 2 practice locations, including Orange, CA. Call before your visit to confirm the address.
- What is Sami B. Hamamji's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Sami B. Hamamji accept Medicare assignment?
- Yes. Medicare's clinician data says Sami B. Hamamji 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 Sami B. Hamamji?
- (714) 835-8300, as listed in official Medicare / NPI Registry data.
- What is Sami B. Hamamji's NPI number?
- 1457425282. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sami B. Hamamji works
Medicare's Facility Affiliation Data lists Sami B. Hamamji at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence St. Joseph HospitalOrange, CA · Acute Care Hospital · CCN 050069
Practice locations
Addresses where Sami B. Hamamji is enrolled with Medicare (CMS data updated 2026-10-02).
- 1010 W La Veta Ave, Suite 470Orange, CA 92868 (714) 835‑8300
- 1010 W La Veta Ave, Suite 775Orange, CA 92868 (714) 541‑4996
Group practices
Medicare enrollment lists Sami B. Hamamji as a member of this group (CMS data updated 2026-10-02).
- Orange Surgical Associates7 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Orange
Clinicians with the same Medicare primary specialty in Orange, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457425282 |
| 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