Hmayak Hamo Matossian, M.D.
Anesthesiology Physician · Arcadia, CA
Hmayak Hamo Matossian, M.D. is an anesthesiology physician with a practice address in Arcadia, California, and NPI 1801810536, issued on Jul 26, 2006. Check the license (California A64000, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Hmayak Hamo Matossian
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A64000 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 W Huntington Dr, Arcadia, CA 91007
- Phone
- (626) 445-4441
- Enumerated
- Jul 26, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (626) 821-6955
- Medicaid ID
- 00A640001 CA
- Medicare enrollment
- Enrolled (PECOS I20050531001066); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 300 W Huntington Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katherine Agron, NPFamily Nurse Practitioner1538685334
- Raha Akhavan, M.D.Anesthesiology Physician1477577351
- Vincent Antosz, MDInternal Medicine Physician1831150135
- Loren Ayres, M.D.Anatomic Pathology & Clinical Pathology Physician1184693301
- Apryl Jann Bacalso, PTPhysical Therapist1124525340
- Rahtna Banerjee, M.D.Anesthesiology Physician1033430855
Verify Hmayak Hamo Matossian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A64000Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Tip Top Anesthesia Group IncBakersfield, CA
- Usc Care Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hmayak Hamo Matossian among 7,571 anesthesiology physician records in California
Hmayak Hamo Matossian, M.D. is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 53% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1995 · median 2006 among the 4,868 with a school on file
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 anesthesiology physician records list a practice address in Arcadia
They are 27 of the 2,033 NPPES records with a practice address in Arcadia, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Arcadia → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Raha Akhavan, M.D.Arcadia, CA 910071477577351
- Steven Chen, M.D.Arcadia, CA 910071447382197
- Susan Choa, M.D.Arcadia, CA 910071205850930
- Sungkey Chong, M.D.Arcadia, CA 910071245254135
- Frederick Curtis, M.D.Arcadia, CA 910071316961204
- Stephen Fernandez, M.D.Arcadia, CA 910071427064070
- Richard Heimann, M.D.Arcadia, CA 910071740296284
- John Holloway, M.D.Arcadia, CA 910071205870011
Common questions
What is Hmayak Hamo Matossian, M.D.'s NPI number?
Hmayak Hamo Matossian, M.D.'s National Provider Identifier (NPI) is 1801810536, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hmayak Hamo Matossian, M.D. located?
The NPPES record lists a practice address at 300 W Huntington Dr, Arcadia, CA, 91007. Phone: (626) 445-4441. Providers update this record themselves, so call before visiting.
How can I verify Hmayak Hamo Matossian, M.D.'s license?
NPPES lists California license number A64000, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.