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 185 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. Shauna Nguyen, DSMC, MSM, PA-CSacramento, CA 958171639619331
  2. Stephanie Nguyen, PA-CNewport Beach, CA 926601548812621
  3. Summer Nguyen, PA-CWestminster, CA 926831205354602
  4. Tammy Nguyen, PA-CLos Alamitos, CA 907201326682428
  5. Tammy Nguyen, PAMoreno Valley, CA 925551275107328
  6. Tammy Nguyen, PA-CSanta Ana, CA 927041073980843
  7. Taylor Nguyen, PA-CNewport Beach, CA 926601003635277
  8. Teresa Nguyen, PA-CWest Covina, CA 917911255097283
  9. Teresa NguyenFullerton, CA 928351275381683
  10. Theodora Nguyen, PA-CIrvine, CA 926181194303958
  11. Theodore NguyenWestminster, CA 926831396662821
  12. Theresa NguyenPanorama City, CA 914021245152842
  13. Thien NguyenVallejo, CA 945921942913959
  14. Tho NguyenHuntington Beach, CA 926471932725231
  15. Thomas Nguyen, P.A.Anaheim, CA 928051053436741
  16. Thu Nguyen, PA-CWestminster, CA 926831093006991
  17. Thu Vinh Nguyen, PA-CFountain Valley, CA 927081831045541
  18. Thucdoan Nguyen, P.A.Bell, CA 902011497827604
  19. Thuy NguyenLaguna Niguel, CA 926771770832347
  20. Thuy Dung Nguyen, PAModesto, CA 953501225717705
  21. Thuy-Vy Nguyen, PA-CSan Diego, CA 921031205490521
  22. Tien Nguyen, PA-CSan Francisco, CA 941431306315502
  23. Tiffany Nguyen, PACamp Pendleton, CA 920551790111607
  24. Tiffany Nguyen, PA-CFremont, CA 945381932832714
  25. Tiffany Quyen Nguyen, PA-CGarden Grove, CA 928451356804587
  26. Tolan Nguyen, PAOrange, CA 928681114114394
  27. Tony Nguyen, PA-CLaguna Woods, CA 926371215286356
  28. Tracy-Tram Nguyen, PA-CLos Angeles, CA 900331386132975
  29. Trang Nguyen, PASanta Cruz, CA 950601508737511
  30. Trang Nguyen, PHYSICIAN ASSISTANTSan Jose, CA 951221275225666
  31. Trang NguyenSan Jose, CA 951231902539257
  32. Tri Nguyen, PARiverside, CA 925051578689709
  33. Tuyet Nguyen, PA-CFremont, CA 945381679082531
  34. Tuyet-Khanh Nguyen, PACorona, CA 928791316221567
  35. Uyen NguyenBeverly Hills, CA 902101497012421
  36. Van Laurie Nguyen, PA-CSanta Ana, CA 927041316296932
  37. Van-Minh Nguyen, P.A-CSacramento, CA 958111619206489
  38. Vina NguyenLa Palma, CA 906231770049090
  39. Vina Nguyen, PA-CBrentwood, CA 945131336611631
  40. Vincent NguyenFullerton, CA 928311235730789
  41. Vivian Nguyen, PA-CLos Angeles, CA 900071962085795
  42. Vivian NguyenFullerton, CA 928311891528808
  43. Vivian Nguyen, PA-CSan Jose, CA 951251811583362
  44. Vy NguyenRosemead, CA 917701174156475
  45. Vy Jennifer NguyenLos Gatos, CA 950321497686299
  46. Xuan Nguyen, PAOroville, CA 959661154456309
  47. Victoria Nguyen BaoRiverside, CA 925031275403842
  48. Kim Phuong Nguyen-Casey, PA-CSanta Barbara, CA 931051093045833
  49. Steven Nguyen-Ho, PA-COrange, CA 928661821952623
  50. Thuc Nguyen-Le, PA-CPasadena, CA 911051699571067

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.