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 279 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. Chrystelle Williams, PA-CVan Nuys, CA 914051023103413
  2. David WilliamsRedlands, CA 923731336706530
  3. Erica WilliamsLong Beach, CA 908081164207593
  4. Imee Williams, PA-CSan Francisco, CA 941091427761402
  5. James Williams, PHYSICIAN ASSTSanta Rosa, CA 954011417079112
  6. Jamie Williams, PA-CTorrance, CA 905021548593247
  7. Jeffrey Williams, PA-CLa Mesa, CA 919411598854432
  8. Jordan Williams, PA-CSanta Maria, CA 934541003090697
  9. Kaitlin Williams, PA-CSanta Barbara, CA 931031710612411
  10. Kasinee Williams, PA-CEl Monte, CA 917331831476779
  11. Kassidy Williams, PA-CLong Beach, CA 908081134934334
  12. Katherine Williams, PACThousand Oaks, CA 913611861689390
  13. Layne Williams, PA-CNewport Beach, CA 926631588448906
  14. Matthew Williams, PAHanford, CA 932301891392643
  15. Miena WilliamsSan Diego, CA 921291154287340
  16. Preston Williams, PA-CLos Gatos, CA 950321528241593
  17. Ravyn Williams, PA-CLos Angeles, CA 900481144697053
  18. Reanna Williams, PA-CPalo Alto, CA 943041891319828
  19. Rosalind Williams, PA-CWilmington, CA 907441437281979
  20. Stephanie Williams, PA-CSolana Beach, CA 920751922491521
  21. Stephen Williams, PA-CCamp Pendleton, CA 920551477537736
  22. Sydney Williams, PA-CWalnut Creek, CA 945961457694200
  23. Tanisha Williams, PASan Bernardino, CA 924111013951417
  24. Tarquin Williams, PA-CCathedral City, CA 922341750539391
  25. Trevor Williams, PA-CBakersfield, CA 933091477805554
  26. Wendy Williams, P.A.-CSanta Rosa, CA 954051538167226
  27. Wilbert Williams, PA-CLong Beach, CA 908221295822534
  28. Laquinta Williams-Johnson, PAAnaheim, CA 928041396955803
  29. Kerri Williamson, PA-CSan Francisco, CA 941051508332149
  30. Troy WilliamsonLos Alamitos, CA 907201750166591
  31. Zarian Williamson, PA-CLemoore, CA 932461245172089
  32. Jason Williford, P.A.Santa Maria, CA 934541174875793
  33. Austin WillisVallejo, CA 945921023682986
  34. Heather Willis, MPAP, PA-CSan Luis Obispo, CA 934051215284096
  35. Monique Willis, PA-CWestchester, CA 900451023202744
  36. Randee Willis, PA-CTorrance, CA 905051073618260
  37. Paul Willner, PARiverside, CA 925051710003918
  38. Christopher Wills, PA-CRedding, CA 960021073122412
  39. Kara Wills, PA-CSan Diego, CA 921031962826271
  40. Brandon Wilmot, PA-CCamp Pendleton, CA 920551346958501
  41. Amanda Wilson, PA-CWest Hills, CA 913071386357101
  42. Amaya Wilson, PA-CBrea, CA 928211609727114
  43. Andrew Wilson, PANapa, CA 945591982347522
  44. Angela Wilson, PAWalnut Creek, CA 945981912594904
  45. Brenda Wilson, PA-CPlacentia, CA 928701932655123
  46. Cary Wilson, PA-CRohnert Park, CA 949281700067378
  47. Chrissy Wilson, PALos Angeles, CA 900071760074819
  48. Dean Wilson, P.A.Thousand Oaks, CA 913601659329951
  49. Deirdre WilsonLos Angeles, CA 900591033881768
  50. James Wilson, PAWoodland Hills, CA 913671275659401

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.