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 184 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. Leilina NguyenCalimesa, CA 923201194520304
  2. Leslie NguyenEastvale, CA 928801104462803
  3. Leyna NguyenVallejo, CA 945921396517785
  4. Lien Nguyen, PASan Diego, CA 921201780700948
  5. Lien Nguyen, PA-CIrvine, CA 926061821948183
  6. Lillian Nguyen, PA-COrange, CA 928681245717024
  7. Linda Nguyen, PA-CMenlo Park, CA 940251104670108
  8. Linh NguyenLoma Linda, CA 923501710668884
  9. Mai Thao Nguyen, PA-CAnaheim, CA 928041457700296
  10. Matt Nguyen, PA-CGarden Grove, CA 928411144578345
  11. Meagan Nguyen, P.A.Fremont, CA 945381639181514
  12. Megan Nguyen, PA-COrange, CA 928681952273773
  13. Michelle Nguyen, PA-CSan Francisco, CA 941111912607193
  14. Michelle Nguyen, PA-CLodi, CA 952401821868324
  15. Mien Thao NguyenVallejo, CA 945921972375343
  16. Mina NguyenWestminster, CA 926831902760705
  17. Minhdan Nguyen, PA-CLos Angeles, CA 900951689009557
  18. Minnie Nguyen, PADaly City, CA 940151598617235
  19. Miranda NguyenSan Rafael, CA 949031003421975
  20. Misha Nguyen, PA-CStanford, CA 943051629791199
  21. My Nguyen, PA-CSan Jose, CA 951161659809275
  22. My-Uyen NguyenSan Diego, CA 921211831822527
  23. Natalie Nguyen, PASan Diego, CA 921031770059834
  24. Nathan Nguyen, PA-CNewport Beach, CA 926631356290332
  25. Nelson Nguyen, PA-CWest Hollywood, CA 900481902324031
  26. Ngoc Nguyen, P.A.-CLos Angeles, CA 900891518931476
  27. Ngoc Nguyen, PAMarina Del Rey, CA 902921730960758
  28. Nhi NguyenEl Centro, CA 922431922884303
  29. Nhu-Y NguyenEscondido, CA 920251316567696
  30. Patrick NguyenFountain Valley, CA 927081063109197
  31. Patrick NguyenSacramento, CA 958171952870370
  32. Phalee Nguyen, PA-CTustin, CA 927801245560226
  33. Phuong Nguyen, PAEl Monte, CA 917311205629052
  34. Phuong NguyenWestminster, CA 926831275105694
  35. Phuong Nguyen, PASan Francisco, CA 941171891079059
  36. Phuong Anh Nguyen, PA-CWestminster, CA 926831295420685
  37. Phuong Thi Du Nguyen, PA-CFremont, CA 945381962054213
  38. Phuong-My NguyenBuena Park, CA 906201225899883
  39. Quan NguyenLaguna Niguel, CA 926771912619214
  40. Quinny NguyenAnaheim, CA 928041548180839
  41. Quocbao NguyenGarden Grove, CA 928431881494268
  42. Quynh Nguyen, PAWestminster, CA 926831366300238
  43. Rebekah NguyenLos Angeles, CA 900131093188765
  44. Ryan NguyenHighland, CA 923461134004914
  45. Ryan Nguyen, PAOrange, CA 928681619751476
  46. Ryan Nguyen, PA-CEmeryville, CA 946081689021131
  47. Samantha NguyenSan Bernardino, CA 924041134960321
  48. Sandy NguyenVallejo, CA 945921659945723
  49. Sendy Nguyen, PA-CMoorpark, CA 930211659084747
  50. Serena Nguyen, PA-CHighland, CA 923461013871813

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.