NPPES file of Aug 9, 2026

Bassam Mouazzen, M.D.

Specialist · Glendora, CA

Bassam Mouazzen, M.D. is a specialist with a practice address in Glendora, California, and NPI 1952492712, issued on Sep 27, 2006. Check the license (California C43066, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952492712
Name
Bassam Mouazzen
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
C43066 CA
Self-reported in NPPES; status is on the state search
Practice location
415 W Route 66, Glendora, CA 91740
Phone
(626) 852-9986
Enumerated
Sep 27, 2006
Record last updated
Mar 7, 2023
Fax
(626) 963-2220
Medicaid ID
1625227 CA
Medicare enrollment
Enrolled (PECOS I20081024000370); 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.
Download card Updates feed

Also registered at 415 W Route 66

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ghada Al-Asadi, MDPsychiatry Physician1598875239
  2. Maggie Ateia, PSY.D.Clinical Psychologist1003056680
  3. Richard Biebuyck, M.D.Psychiatry Physician1770521734
  4. Piedad Castrillon, L.M.F.T.Marriage & Family Therapist1265899553
  5. John Cullen, MFTMarriage & Family Therapist1104035260
  6. George Ferenczi, M.D.Gastroenterology Physician1932270105

Verify Bassam Mouazzen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license C43066
    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
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

2% fewer Medicare Part D claims than the average specialist in 2024

1,355 Medicare Part D claims for 171 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Bassam Mouazzen1,355
  2. Specialty average1,380

Most prescribed

  1. Atorvastatin Calcium88 claims
  2. Eliquis81 claims
  3. Lisinopril80 claims
  4. Digoxin79 claims
  5. Carvedilol74 claims
  6. Hydrochlorothiazide68 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.

The MIPS final score for 2023 (Medicare payment program): 20.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%68.4
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $217.68

7 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Bassam Mouazzen$217.68
  2. Specialty average$4,760.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bassam Mouazzen among 5,749 specialist records in California

Bassam Mouazzen, M.D. is one of 5,749 specialist records with a practice address in California. 30% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 60% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated1972 · median 1989 among the 1,075 with a school on file
  • Record last updated2023 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in California

There are 5,749 specialist records in California.

The 8 specialist records with the nearest ZIP codes

  1. Gurjeet Kalkat, M.D.Glendora, CA 917401346298924
  2. Manmohan Kumar, M.D.Glendora, CA 917401336185370
  3. Amarpaul Sidhu, M.DGlendora, CA 917401396713822
  4. Mayank Vakil, M.D.Glendora, CA 917401861449985
  5. Joseph Anthony, DDS,MSGlendora, CA 917411447361753
  6. Plaridel Atil, MDGlendora, CA 917411184625543
  7. Richard Johnson, M.DGlendora, CA 917411083691182
  8. Suresh Selvaraju, PHDDuarte, CA 917411750764320

Common questions

What is Bassam Mouazzen, M.D.'s NPI number?

Bassam Mouazzen, M.D.'s National Provider Identifier (NPI) is 1952492712, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Bassam Mouazzen, M.D. located?

The NPPES record lists a practice address at 415 W Route 66, Glendora, CA, 91740. Phone: (626) 852-9986. Providers update this record themselves, so call before visiting.

How can I verify Bassam Mouazzen, M.D.'s license?

NPPES lists California license number C43066, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Bassam Mouazzen, M.D. prescribe under Medicare Part D?

In 2024, Bassam Mouazzen, M.D. had 1,355 Medicare Part D claims for 171 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.

What is Bassam Mouazzen, M.D.'s MIPS final score?

The 2023 MIPS final score is 20.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.