NPPES file of Aug 9, 2026

Jim Viethung Nguyen, PA

Physician Assistant · San Diego, CA

Jim Viethung Nguyen, PA is a physician assistant with a practice address in San Diego, California, and NPI 1376375642, issued on Aug 15, 2024. Check the license (California 66922, 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
1376375642
Name
Jim Viethung Nguyen
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
66922 CA
Self-reported in NPPES; status is on the state search
Practice location
9246 Lightwave Ave Ste 120, San Diego, CA 92123
Phone
(800) 270-5016
Enumerated
Aug 15, 2024
Record last updated
May 5, 2026
Medicare enrollment
Enrolled (PECOS I20250114003126); 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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Also registered at 9246 Lightwave Ave Ste 120

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

  1. Ryan Aguinaldo, PSYDClinical Psychologist1356036552
  2. Linda Davalos Sorto, LCSWClinical Social Worker1053955401
  3. Guillermo Gonzalez, LPCCMental Health Counselor1144902156
  4. James Jackson, M.DOrthopaedic Surgery Physician1619060134
  5. Vianney Luis QueroClinical Psychologist1215218623
  6. Alexis RoncevichPsychologist1689123150

Verify Jim Viethung 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 66922
    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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94% fewer Medicare Part D claims than the average physician assistant in 2024

49 Medicare Part D claims for 32 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Jim Nguyen49
  2. Specialty average830

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. Millennium Physician Group OF NC, PLLCDurham, NC

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

Jim Viethung Nguyen among 14,451 physician assistant records in California

Jim Viethung Nguyen, PA is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 87% of them.

  • NPI issued2024 · 87% of these records are older, 7% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2024 · median 2018 among the 7,214 with a school on file
  • Record last updated2026 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

747 physician assistant records list a practice address in San Diego

They are 747 of the 52,937 NPPES records with a practice address in San Diego, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Amanda Asaro, P.A-CSan Diego, CA 921231306961313
  2. Billie Jo Brockington, PA-CSan Diego, CA 921231023126588
  3. Anne Denslow, P.A.San Diego, CA 921231780732495
  4. Allison Dickinson, PA-CSan Diego, CA 921231972655389
  5. Chinh Fleming, P.A.San Diego, CA 921231932214319
  6. Steven Gottesfeld, P.A.San Diego, CA 921231427068972
  7. Denise Lago, P.A.San Diego, CA 921231871641589
  8. Hortensia Lara, MDSan Diego, CA 921231649329293

Common questions

What is Jim Viethung Nguyen, PA's NPI number?

Jim Viethung Nguyen, PA's National Provider Identifier (NPI) is 1376375642, issued on Aug 15, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Jim Viethung Nguyen, PA located?

The NPPES record lists a practice address at 9246 Lightwave Ave Ste 120, San Diego, CA, 92123. Phone: (800) 270-5016. Providers update this record themselves, so call before visiting.

How can I verify Jim Viethung Nguyen, PA's license?

NPPES lists California license number 66922, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Jim Viethung Nguyen, PA prescribe under Medicare Part D?

In 2024, Jim Viethung Nguyen, PA had 49 Medicare Part D claims for 32 beneficiaries; the average among physician assistant prescribers was 830. 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.