NPPES file of Aug 9, 2026

Gregory Andonian, MD

Family Medicine Physician · Los Angeles, CA

Gregory Andonian, MD is a family medicine physician with a practice address in Los Angeles, California, and NPI 1942648118, issued on Jun 11, 2013. Check the license (California A140710, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1942648118
Name
Gregory Andonian
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License numbers
A140710 CA
11016967A IN
Self-reported in NPPES; status is on the state search
Practice location
2013 Ames St, Los Angeles, CA 90027
Phone
(323) 428-7634
Enumerated
Jun 11, 2013
Record last updated
Jul 21, 2022
Medicare enrollment
Enrolled (PECOS I20160714002542); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Gregory Andonian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A140710
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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94% fewer Medicare Part D claims than the average family medicine physician in 2024

204 Medicare Part D claims for 100 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.

  1. Gregory Andonian204
  2. Specialty average3,544

Most prescribed

  1. Prednisone14 claims
  2. Azithromycin13 claims
  3. Atorvastatin Calcium12 claims
  4. Eliquis11 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.

Bills Medicare through one group practice

  1. Providence Facey Medical FoundationMission Hills, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gregory Andonian among 17,133 family medicine physician records in California

Gregory Andonian, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 68% of them.

  • NPI issued2013 · 68% of these records are older, 29% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2010 · median 2005 among the 10,652 with a school on file
  • Record last updated2022 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

829 family medicine physician records list a practice address in Los Angeles

They are 829 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Silverio Arano, MDLos Angeles, CA 900271447229851
  2. Michael Burton, MDLos Angeles, CA 900271477513547
  3. Letitia Ho, MDLos Angeles, CA 900271922179837
  4. Thomas Horowitz, D.O.Los Angeles, CA 900271538113444
  5. Scott Howell, DOLos Angeles, CA 900271831182591
  6. Tony Hwang, MDLos Angeles, CA 900271093886053
  7. Joanne Mogannam, MDLos Angeles, CA 900271124199005
  8. Anthony Morena, MDLos Angeles, CA 900271487725461

Common questions

What is Gregory Andonian, MD's NPI number?

Gregory Andonian, MD's National Provider Identifier (NPI) is 1942648118, issued on Jun 11, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Andonian, MD located?

The NPPES record lists a practice address at 2013 Ames St, Los Angeles, CA, 90027. Phone: (323) 428-7634. Providers update this record themselves, so call before visiting.

How can I verify Gregory Andonian, MD's license?

NPPES lists California license number A140710, 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 Gregory Andonian, MD prescribe under Medicare Part D?

In 2024, Gregory Andonian, MD had 204 Medicare Part D claims for 100 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.