Hmayak Hamo Matossian, M.D.
NPI 1801810536ActiveIndividual· Anesthesiology· Arcadia, CA
Anesthesiology (M.D.) in Arcadia, California, trained at Loma Linda University School of Medicine (class of 1995). Medicare paid $51,156 for services to 286 patients in 2024.
Overview
| NPI | 1801810536 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 26, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | A64000 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Anesthesiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 286 |
|---|---|
| Services billed | 335 across 59 procedure codes |
| Paid by Medicare | $51,156 |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Anesthesiology |
Medical group
- Usc Care Medical Group IncLos Angeles, CA · 1,380 clinicians
Hospital affiliations
- Keck Hospital of UscLos Angeles, CA
- Usc Arcadia HospitalArcadia, CA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 46 anesthesiologists in Arcadia · All anesthesiologists in California