NPPES file of Aug 9, 2026

Moses S. Nasser, D.O.

Addiction Medicine (Family Medicine) Physician · Glendora, CA

Moses S. Nasser, D.O. is an addiction medicine (family medicine) physician with a practice address in Glendora, California, and NPI 1902023682, issued on Apr 20, 2007. Check the license (California 20A9301, 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
1902023682
Name
Moses S. Nasser
Credential
D.O.
Primary taxonomy
Addiction Medicine (Family Medicine) Physician 207QA0401X
License number
20A9301 CA
Self-reported in NPPES; status is on the state search
Practice location
1146 E Route 66, Glendora, CA 91740
Phone
(909) 206-4188
Enumerated
Apr 20, 2007
Record last updated
Jul 14, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest addiction medicine (family medicine) physician records → All 124 in California → Look up another NPI →

Verify Moses S. Nasser in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A9301    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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80% fewer Medicare Part D claims than the average addiction medicine (family medicine) physician in 2024

134 Medicare Part D claims for 18 beneficiaries, against an average of 664 among the 581 providers of this specialty who prescribed in Part D.

  1. Moses Nasser134
  2. Specialty average664

Most prescribed

  1. Buprenorphine-Naloxone18 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.

Moses S. Nasser among 124 addiction medicine (family medicine) physician records in California

Moses S. Nasser, D.O. is one of 124 addiction medicine (family medicine) physician records with a practice address in California. 78% 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 27% of them.

  • NPI issued2007 · 27% of these records are older, 64% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 52% of these records are
  • Record last updated2026 · 33% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0401X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction Medicine (Family Medicine) Physician providers in California

There are 124 addiction medicine (family medicine) physician records in California.

All 124 in California → Every provider in Glendora → Addiction Medicine (Family Medicine) Physician nationwide →

The 8 addiction medicine (family medicine) physician records with the nearest ZIP codes

  1. Jong Hun Kim, MDPomona, CA 917671417477183
  2. Robert Calvert, D.O.Alpine, CA 919011922458298
  3. Nicole Marie BarcegaChula Vista, CA 919101538801402
  4. Kamron Hakhamimi, M.D.Burbank, CA 915051366742629
  5. Lakai Banks-Dean, MDEl Cajon, CA 920211346746930
  6. Renan Rojas, M.D.San Marcos, CA 920691730404344
  7. Sirisat Khalsa, M.D.Sherman Oaks, CA 914031669418182
  8. Jerry Ayers, MDSan Diego, CA 921011104977602

Common questions

What is Moses S. Nasser, D.O.'s NPI number?

Moses S. Nasser, D.O.'s National Provider Identifier (NPI) is 1902023682, issued on Apr 20, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Moses S. Nasser, D.O. located?

The NPPES record lists a practice address at 1146 E Route 66, Glendora, CA, 91740. Phone: (909) 206-4188. Providers update this record themselves, so call before visiting.

How can I verify Moses S. Nasser, D.O.'s license?

NPPES lists California license number 20A9301, 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 Moses S. Nasser, D.O. prescribe under Medicare Part D?

In 2024, Moses S. Nasser, D.O. had 134 Medicare Part D claims for 18 beneficiaries; the average among addiction medicine (family medicine) physician prescribers was 664. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.