James A. Nassiri, MD, MA
Anesthesiology Physician · Glendale, CA
James A. Nassiri, MD, MA is an anesthesiology physician with a practice address in Glendale, California, and NPI 1225164999, issued on Feb 26, 2007. Check the license (California A86743, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James A. Nassiri
- Credential
- MD, MA
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A86743 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1420 S Central Ave, Glendale, CA 91204
- Phone
- (818) 502-1900
- Enumerated
- Feb 26, 2007
- Record last updated
- Jan 7, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (818) 502-4738
- Medicare enrollment
- Enrolled (PECOS I20070724000546); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 1420 S Central Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andranik Agazaryan, M.D.Internal Medicine Physician1326401852
- Jodi Aragona, MDEmergency Medicine Physician1336196583
- Aristotle AriolaAdult Psychiatric/Mental Health Registered Nurse1104536523
- Lourdes Arteaga, MSN, PNPPediatric Nurse Practitioner1235208141
- Sylvia Ashour, M.D.Anesthesiology Physician1871735365
- Hari AvedissianAnesthesiology Physician1780117523
Verify James A. Nassiri in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A86743Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average anesthesiology physician in 2024
361 Medicare Part D claims for 80 beneficiaries, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. 185 claims were for opioids.
Most prescribed
- Tramadol Hcl75 claims
- Gabapentin53 claims
- Oxycodone Hcl37 claims
- Oxycodone-Acetaminophen26 claims
- Fentanyl24 claims
- Hydrocodone-Acetaminophen22 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,631.24
24 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
James A. Nassiri among 7,571 anesthesiology physician records in California
James A. Nassiri, MD, MA 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 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 43% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2001 · median 2006 among the 4,868 with a school on file
- Record last updated2010 · 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).
51 anesthesiology physician records list a practice address in Glendale
They are 51 of the 4,742 NPPES records with a practice address in Glendale, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Glendale → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Sylvia Ashour, M.D.Glendale, CA 912041871735365
- Hari AvedissianGlendale, CA 912041780117523
- Rodney Cheng, M.D.Glendale, CA 912041366612228
- Ivan Hronek, M.D.Glendale, CA 912041124131941
- Johny IV, MDGlendale, CA 912041326425208
- Richard Kim, MDGlendale, CA 912041285955880
- Gregory Lara, M.D.Glendale, CA 912041144244484
- Jonathan Lau, D.O.Glendale, CA 912041144367111
Common questions
What is James A. Nassiri, MD, MA's NPI number?
James A. Nassiri, MD, MA's National Provider Identifier (NPI) is 1225164999, issued on Feb 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James A. Nassiri, MD, MA located?
The NPPES record lists a practice address at 1420 S Central Ave, Glendale, CA, 91204. Phone: (818) 502-1900. Providers update this record themselves, so call before visiting.
How can I verify James A. Nassiri, MD, MA's license?
NPPES lists California license number A86743, 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.
How much does James A. Nassiri, MD, MA prescribe under Medicare Part D?
In 2024, James A. Nassiri, MD, MA had 361 Medicare Part D claims for 80 beneficiaries; the average among anesthesiology physician prescribers was 402. Part D covers Medicare prescriptions only.
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.