Registry data as of Aug 27, 2026

Joseph Nguyen

Physician Assistant · Chino, CA

Joseph Nguyen is a physician assistant with a practice address in Chino, California, and NPI 1669901468, issued on Jun 6, 2017. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1669901468
Name
Joseph Nguyen
Primary taxonomy
Physician Assistant 363A00000X
Practice location
5451 Walnut Ave, Chino, CA 91710
Phone
(909) 464-8600
Enumerated
Jun 6, 2017
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 5451 Walnut Ave

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

  1. Ashraf Abdel-KerimEmergency Medicine Physician1396961538
  2. Udhaya AeletyStudent in an Organized Health Care Education/Training Program1740815943
  3. Ahmet AhmadiStudent in an Organized Health Care Education/Training Program1043199532
  4. Brian Ahn, D.O.Student in an Organized Health Care Education/Training Program1265849749
  5. Randall Allred, D.O.Student in an Organized Health Care Education/Training Program1629427703
  6. Harikrishna Ambati, MDFamily Medicine Physician1154998730

Verify Joseph Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck 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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

92% fewer Medicare Part D claims than the average physician assistant in 2024

65 Medicare Part D claims for 54 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D.

  1. Joseph Nguyen65
  2. Specialty average832

Most prescribed

  1. Ibuprofen14 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.

31 physician assistant records list a Chino practice address

They are 31 of the 1,097 NPPES records with a Chino practice address, and 13,861 physician assistant records in California.

Other physician assistant records in California

  1. Marcia -Galbraith, PAStockton, CA1407143274
  2. Danny Abad, PAOrange, CA1477158673
  3. Lea Dominique Abadies, PATustin, CA1124754254
  4. Rea Elizabeth Abaniel, P.A.-CSeal Beach, CA1396173621
  5. Ramina Abbasi, PA-CSignal Hill, CA1093448300
  6. Ariel Abbott, PA-CStockton, CA1780334342
  7. Barrie Abbott, PA-CAnza, CA1861602575
  8. Elizabeth Abbott, PA-CSan Diego, CA1437540762
  9. Angela Abboud, MMS, PA-CSanta Rosa, CA1114399334
  10. Fatimeh Abdallah, P.A.-CNewport Beach, CA1487002218

Common questions

What is Joseph Nguyen's NPI number?

Joseph Nguyen's National Provider Identifier (NPI) is 1669901468, issued on Jun 6, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Joseph Nguyen located?

The NPPES record lists a practice address at 5451 Walnut Ave, Chino, CA, 91710. Phone: (909) 464-8600. Providers update this record themselves, so call before visiting.

How can I verify Joseph Nguyen's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Joseph Nguyen prescribe under Medicare Part D?

In 2024, Joseph Nguyen had 65 Medicare Part D claims for 54 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.