Quick answers
- Which hospitals does Amir K. Ghiassi work at?
- Medicare's official clinician data lists Amir K. Ghiassi at 3 hospitals: Providence Little Company of Mary Medical Center Torrance, Providence St. Joseph Hospital and St Mary Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Amir K. Ghiassi see patients?
- Medicare's clinician data lists 3 practice locations, including Long Beach, CA, Orange, CA and Torrance, CA. Call before your visit to confirm the address.
- What is Amir K. Ghiassi's specialty?
- Medicare lists Critical Care (Intensivists) as the primary specialty.
- Does Amir K. Ghiassi accept Medicare assignment?
- Yes. Medicare's clinician data says Amir K. Ghiassi 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 Amir K. Ghiassi?
- (562) 491-9000, as listed in official Medicare / NPI Registry data.
- What is Amir K. Ghiassi's NPI number?
- 1518983899. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Amir K. Ghiassi works
Medicare's Facility Affiliation Data lists Amir K. Ghiassi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence Little Company of Mary Medical Center TorranceTorrance, CA · Acute Care Hospital · CCN 050353
- Providence St. Joseph HospitalOrange, CA · Acute Care Hospital · CCN 050069
- St Mary Medical CenterLong Beach, CA · Acute Care Hospital · CCN 050191
Practice locations
Addresses where Amir K. Ghiassi is enrolled with Medicare (CMS data updated 2026-10-02).
- 1050 Linden AveLong Beach, CA 90813 (562) 491‑9000
- 1100 W Stewart DrOrange, CA 92868 (714) 771‑8000
- 4101 Torrance BlvdTorrance, CA 90503 (949) 829‑8299
Group practices
Medicare enrollment lists Amir K. Ghiassi as a member of these groups (CMS data updated 2026-10-02).
- Cep America - Intensivists PC125 clinicians in the group
- Southbay Critical Care a Medical Partnership12 clinicians in the group
- Integrated Critical Care and Pulmonary Specialists Inc10 clinicians in the group
Specialties
- Critical Care (Intensivists)primary
Find other Critical Care (Intensivists) doctors in California →
Other critical care doctors in Long Beach
Clinicians with the same Medicare primary specialty in Long Beach, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518983899 |
| 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