NPPES file of Aug 9, 2026

Physician Assistant in California

14,451 NPPES records list physician assistant with a practice address in California, 37 per 100,000 residents, the 41st highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 182 of 290.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 363A00000X · method

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

Los Angeles has the most, 935

  1. Los Angeles935
  2. San Diego747
  3. San Francisco488
  4. Stanford480
  5. Sacramento387

Physician Assistant records in California

  1. Adam Nguyen, PASanta Ana, CA 927051336917285
  2. Alice Nguyen, PALos Angeles, CA 900171285193664
  3. Alice Nguyen, PASanta Monica, CA 904041801263306
  4. Alyson Nguyen, PAHuntington Beach, CA 926481801508106
  5. Amy NguyenLaguna Hills, CA 926531265022438
  6. Amy NguyenFountain Valley, CA 927081144934324
  7. Andrea Nguyen, PA-CIrvine, CA 926141255615761
  8. Andrew NguyenVallejo, CA 945921912572983
  9. Angel Nguyen, PA-CLa Mesa, CA 919421578100087
  10. Anh Nguyen, PA-CLos Angeles, CA 900271366983595
  11. Anh Nguyen, PASan Diego, CA 921031033958434
  12. Anna Nguyen, PA-CHuntington Beach, CA 926461639888175
  13. Annie Nguyen, PA-CSanta Barbara, CA 931011942772355
  14. Ariel NguyenSan Bernardino, CA 924041902433303
  15. Binh Hoa Nguyen, PA-SIrvine, CA 926181427931732
  16. Brandon Nguyen, PA-CSan Jose, CA 951121972327005
  17. Brandon Nguyen, PA-CSan Jose, CA 951161265194617
  18. Brenda Nguyen, MHS, PA-CModesto, CA 953551801350749
  19. Calvin NguyenSan Bernardino, CA 924041417432535
  20. Cammie Nguyen, P.A.San Diego, CA 921211508517400
  21. Carol Nguyen, PASanta Maria, CA 934541497435945
  22. Caroline Nguyen, P.A.Orange, CA 928681669897047
  23. Catherine NguyenWest Covina, CA 917901336665975
  24. Catherine Nguyen, PA-CWestminster, CA 926831326316076
  25. Catlin Nguyen, PA-COntario, CA 917641023227220
  26. Charles Nguyen, P.A.Sacramento, CA 958161124100136
  27. Chau Nguyen, PA-CPomona, CA 917661003573049
  28. Chau Nguyen, PA-CGarden Grove, CA 928401548504533
  29. Christina Nguyen, PA-CAlhambra, CA 918031720712326
  30. Christina Nguyen, PA-CSan Jose, CA 951281457949943
  31. Christine NguyenGarden Grove, CA 928431225826878
  32. Claire NguyenIrvine, CA 926181376422121
  33. Cynthia Nguyen, PA-CBrea, CA 928211922775121
  34. Dan Nguyen, PARedwood City, CA 940621831369230
  35. Dang Nguyen, PA-CGarden Grove, CA 928441932470788
  36. Daniel NguyenFountain Valley, CA 927081982410684
  37. Daniel Nguyen, PA-CSan Francisco, CA 941181902565088
  38. Darlene Nguyen Nguyen, PAFresno, CA 937201598445736
  39. David Nguyen, PA-SLos Angeles, CA 900041447119037
  40. Diana NguyenArcadia, CA 910071295423564
  41. Diane Hang NguyenDowney, CA 902421013728526
  42. Diem Tien NguyenLoma Linda, CA 923501427873298
  43. Diem-Chi NguyenWeaverville, CA 960931942775887
  44. Doantrang NguyenMountain View, CA 940401013768720
  45. Don Nguyen, PA-CSanta Ana, CA 927041942913108
  46. Dzung Nguyen, PA-CStanford, CA 943051114534286
  47. Eileen Nguyen, PA-CGarden Grove, CA 928401780540633
  48. Elizabeth NguyenCosta Mesa, CA 926261275091183
  49. Evelyn NguyenWhittier, CA 906031184149064
  50. Felix Nguyen, PA-CColton, CA 923241548824188

Source: CMS NPPES, primary taxonomy 363A00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 41 of 51 per resident

  1. Georgia42
  2. New Mexico40
  3. Illinois39
  4. California37
  5. New Jersey37
  6. Texas36
  7. 50 states and D.C.49

Source: CMS NPPES, primary taxonomy 363A00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

75.2% of these records appear in a Medicare file, against 77.9% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. California75.2%
  2. United States77.9%

Physician Assistant records in California, measured

  • In a Medicare file10,860 of 14,451 · 75.2% here, 77.9% nationally
  • In the CMS Doctors and Clinicians file7,218 · 49.9% here, 62.6% nationally
  • Not updated in five years or more5,775 · 40.0% here, 39.3% nationally
  • Median graduation year2018 · the 7,214 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 363A00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

14,451 NPPES records list physician assistant (363A00000X) as their primary taxonomy with a practice address in California: 37 per 100,000 residents against 49 nationally (50 states and D.C.). Los Angeles has 935 of them (6%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. New York15,555
  2. Texas10,999
  3. Florida10,257
  4. North Carolina9,279

States with a similar rate per 100,000

  1. New Jersey36.5
  2. Indiana35.3
  3. Illinois39.3
  4. New Mexico40.1

The largest states

  1. New York15,555
  2. Texas10,999
  3. Florida10,257
  4. North Carolina9,279
  5. Pennsylvania8,020

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.