NPPES file of Aug 9, 2026

Mai Nguyen

Pharmacist · San Jacinto, CA

Mai Nguyen is a pharmacist with a practice address in San Jacinto, California, and NPI 1245655687, issued on Feb 21, 2014. Check the license (California 70021, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1245655687
Name
Mai Nguyen
Primary taxonomy
Pharmacist 183500000X
License number
70021 CA
Self-reported in NPPES; status is on the state search
Practice location
1811 S San Jacinto Ave, San Jacinto, CA 92583
Phone
(951) 487-6185
Enumerated
Feb 21, 2014
Record last updated
Feb 21, 2014 (not updated in 12 years: call before relying on the address or phone)
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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Also registered at 1811 S San Jacinto Ave

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

  1. Heinedine Aguilar, PHARM.D.Pharmacist1053745463
  2. Cindy Nguyen, PHARMD.Pharmacist1861939431
  3. Nadia NguyenPharmacist1598246944
  4. Leigh Ann Ratliff, PHARMDPharmacist1538449251
  5. Bao-Nguyen Truong, PHARM.D.Pharmacist1770105488

Verify Mai Nguyen 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 70021
    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.

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90% fewer Medicare Part D claims than the average pharmacist in 2024

12 Medicare Part D claims for 12 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Mai Nguyen12
  2. Specialty average119

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.

Mai Nguyen among 32,533 pharmacist records in California

Mai Nguyen is one of 32,533 pharmacist records with a practice address in California. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 35% of them.

  • NPI issued2014 · 35% of these records are older, 59% newer
  • In a Medicare fileYes · 15% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2014 · 76% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 pharmacist records list a practice address in San Jacinto

They are 31 of the 531 NPPES records with a practice address in San Jacinto, and 32,533 pharmacist records in California.

The 8 pharmacist records with the nearest ZIP codes

  1. Heinedine Aguilar, PHARM.D.San Jacinto, CA 925831053745463
  2. Ron Cloyd, R.PHSan Jacinto, CA 925831770861163
  3. Ly Dang, PHARM.DSan Jacinto, CA 925831285912709
  4. Ribhi Hamad, RPH 41407San Jacinto, CA 925831598102485
  5. Shiheng HsuSan Jacinto, CA 925831013223916
  6. Pamela Hung, PHARMDSan Jacinto, CA 925831699069237
  7. Gene Kim, PHARMDSan Jacinto, CA 925831316057243
  8. Peter Nguyen, PHARM.DSan Jacinto, CA 925831942520580

Common questions

What is Mai Nguyen's NPI number?

Mai Nguyen's National Provider Identifier (NPI) is 1245655687, issued on Feb 21, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Mai Nguyen located?

The NPPES record lists a practice address at 1811 S San Jacinto Ave, San Jacinto, CA, 92583. Phone: (951) 487-6185. Providers update this record themselves, so call before visiting.

How can I verify Mai Nguyen's license?

NPPES lists California license number 70021, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Mai Nguyen prescribe under Medicare Part D?

In 2024, Mai Nguyen had 12 Medicare Part D claims for 12 beneficiaries; the average among pharmacist prescribers was 119. 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.