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 160 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. Christian Martinez, PAEmeryville, CA 946081740764901
  2. Conrado Martinez, PA-CCalexico, CA 922311295983310
  3. Crishia Joyce Martinez, PA-CIrvine, CA 926181568189207
  4. Elizabeth Martinez, PAHuntington Park, CA 902551598873846
  5. Elizabeth Martinez, PAPomona, CA 917661184585432
  6. Evelin MartinezLos Angeles, CA 900571699840694
  7. Iris MartinezPorterville, CA 932571497504799
  8. Izamar MartinezSan Diego, CA 921341700633229
  9. Jacob MartinezGilroy, CA 950201962331124
  10. Jaime MartinezLos Angeles, CA 900631821398116
  11. Jeremiah Martinez, PA-CPanorama City, CA 914021255458386
  12. Joella Martinez, PA-CPalm Desert, CA 922111760845382
  13. Juana MartinezWestlake Village, CA 913611922869700
  14. Lil MartinezSan Diego, CA 921231578452462
  15. Marisol Martinez, PA-CGreenbrae, CA 949041386187623
  16. Mary Martinez, PASan Diego, CA 921201043336241
  17. Melinda Martinez, PACamp Pendleton, CA 920551023157013
  18. Melissa Martinez, PA-CLos Angeles, CA 900591720138688
  19. Melissa MartinezOxnard, CA 930361528922085
  20. Monica MartinezMadera, CA 936381821566290
  21. Nylvia MartinezTustin, CA 927801376134155
  22. Ronald Martinez, PAWest Covina, CA 917901912954348
  23. Rosa Martinez, PA-CBakersfield, CA 933051891868220
  24. Sharon Martinez, PAMontclair, CA 917631528681368
  25. Wilfredo Martinez, P.A.Riverside, CA 925041033255922
  26. Alejandra Martinez- Chavira, MSPAGlendale, CA 912031659822674
  27. Irene Martinez-Murguia, PA-CNational City, CA 919501447492889
  28. Joanna Martinez-Simon, PA-CSacramento, CA 958311063115608
  29. Amy MartiniOakland, CA 946111992155360
  30. Kristen Martini, PA-CRialto, CA 923761669326203
  31. Danielle MartinoSan Francisco, CA 941111659549152
  32. Travis Martois, P.A.Whittier, CA 906051750323648
  33. Kathleen Marty, PA-CRoseville, CA 956611043315146
  34. Talitha Marty, P.A.Ukiah, CA 954821952469108
  35. Jacob Maruscak, PA-CMonterey, CA 939401699492629
  36. Sylvia Marx, P.A-CFolsom, CA 956301841245321
  37. Marilyn Marzell, PACWatsonville, CA 950761528069812
  38. Ahmed Marzouk, MBBCH, PAEmeryville, CA 946081184093502
  39. Emily Masad, PA-CSan Jose, CA 951281215552732
  40. Zoe MascolaAnaheim, CA 928041073296448
  41. Joseph Mashinchi, P.A.Oakland, CA 946091184004913
  42. Kaveh Mashkouri, PA-CMission Viejo, CA 926911518507987
  43. Kyle Masi, PA-CLoma Linda, CA 923501447629167
  44. Floriana MasiaBrentwood, CA 945131720967045
  45. Ashley Masih, RD, PA-CLoma Linda, CA 923541093332322
  46. Ashley Mason, PACGilroy, CA 950201629495890
  47. Cambria MasonPlacerville, CA 956671245993245
  48. Caroline Mason, PA-CTustin, CA 927801134094170
  49. Hailey Mason, PALa Mesa, CA 919421932829579
  50. Lauren Mason, PA-CLos Angeles, CA 900951831692375

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.