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 257 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. Diane Thompson, P.A.Victorville, CA 923951114156171
  2. Greta ThompsonRiverside, CA 925041235052754
  3. Jeffrey Thompson, P.A.French Camp, CA 952311740360452
  4. Kay Thompson, PA-CLos Angeles, CA 900071316324262
  5. Kelly Thompson, RPA-COceanside, CA 920541891805255
  6. Kenneth Thompson, PA-CSimi Valley, CA 930631609112192
  7. Scott Thompson, PA-CHuntington Beach, CA 926481962714964
  8. Tolya Thompson, P.A-CRoseville, CA 956611154343622
  9. Amy Thomsen, PA-CFairfield, CA 945331043449119
  10. Benjamin Thomson, PA-CPomona, CA 917671265147201
  11. Kalani Thomson, PASan Diego, CA 921201700902947
  12. Sarah Thong, PA-CVentura, CA 930031457008807
  13. Pamela ThornberryOakdale, CA 953611851710594
  14. Marc Thorne, PA-CSanta Rosa, CA 954051225319866
  15. David Thornsberry, PA-CLaguna Niguel, CA 926771982889135
  16. Jennifer Thorpe, PAAnaheim, CA 928011548667454
  17. Rohini Thothala Chandrasekar, MS PA-CSan Bernardino, CA 924011578027561
  18. Sathyapriya Thotti, PAPorter Ranch, CA 913261275861668
  19. Christy Thozer, PA-CCarson, CA 907461316564826
  20. Edward Thrombley, PA-CTurlock, CA 953821558845859
  21. Timothy Thue, P.A.Highland, CA 923461366812786
  22. Jessica Thwaite, PA-CNorthridge, CA 913261861809154
  23. Kathryn Tiano, PA-CTracy, CA 953761215338611
  24. Conor Tibbs, PA-CSan Diego, CA 921081275257776
  25. Daryl Tibbs, PA-CNewport Beach, CA 926601265452007
  26. Jessica Tidd, PATruckee, CA 961611124699426
  27. John Tieche, P.A.Dinuba, CA 936181275654709
  28. Madeline TienGlendale, CA 912041568041424
  29. Nicole Tien, PASanta Monica, CA 904051861119356
  30. Sydney Tien, PA-CDuarte, CA 910101124996731
  31. Keely Tietjen, PA-CAlameda, CA 945011639738040
  32. Nicholas Tieu, PA-CPalo Alto, CA 943011265203889
  33. Madeline Tiffany, PALoma Linda, CA 923541598310229
  34. Armenta Tiggs-Brown, PALancaster, CA 935341568491314
  35. Michael Tikson, DSC, PA-CLemoore, CA 932461578029666
  36. Sneha TilakSacramento, CA 958161184943367
  37. Ana Tilghman, PAClovis, CA 936111578023289
  38. Margaret Till, PA-CPalo Alto, CA 943051609654086
  39. Corey Tiller, PAChino Hills, CA 917091982122776
  40. Peter TimmermanSanta Rosa, CA 954041629549654
  41. Richard Timmerman, P.A.Mission Viejo, CA 926911083809552
  42. Parker Timothy, PASanta Rosa, CA 954031619527371
  43. Thalie Timsit, PA-CSan Diego, CA 921011447040548
  44. James Tinkelenberg, PA-CMad River, CA 955261205978392
  45. Ricca Tinnin, PALa, CA 900231508006297
  46. Ebony TinsleySan Francisco, CA 941111285101956
  47. Annika TinsonAlamo, CA 945071659220309
  48. Ann Tintly, PA-CLong Beach, CA 908061316644545
  49. Cristina Tipei, PA-CWoodlake, CA 932861639547631
  50. Joseph Tippetts, PA-CRedding, CA 960011053945253

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.