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 203 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. Gary Peterson, PATemecula, CA 925921629147731
  2. Madison Peterson, PA-CRancho Mirage, CA 922701407362692
  3. Marla Peterson, FNP/PA-CReedley, CA 936541477532034
  4. Trenton Peterson, PA-CMurrieta, CA 925621770101867
  5. Nicholas Petito, PA-CLos Angeles, CA 900481134768534
  6. Judith Peto, PA-CSan Jose, CA 951261760702989
  7. Anna PetrikCitrus Heights, CA 956101417261165
  8. Laura Petrikovic, PA-CStanford, CA 943051558690560
  9. Larisa Petrison, PACStanford, CA 943051902965676
  10. Matthew Petro, PA-CBrawley, CA 922271457870727
  11. Nicholas Petronijevic, PA-CSalinas, CA 939011114611381
  12. Arineh Petrosian, BS, PA-C, MPHParamount, CA 907231669793485
  13. Nicole Petrosky, PA-CCorte Madera, CA 949251659256774
  14. Anita Petrosyan, PAAlhambra, CA 918031124707484
  15. Atenea Petrucci, PA-CYuba City, CA 959911871391821
  16. Ercole Petrungaro, PA-CSan Francisco, CA 941051336206952
  17. Corinne PettersonSacramento, CA 958251720640915
  18. Deborah Petteway, PHYSICIAN ASSISTANTSacramento, CA 958251184885733
  19. Kristen Petti, PA-CMoreno Valley, CA 925551548828809
  20. Lorraine Petti, PASan Francisco, CA 941431225076433
  21. Marvin PettifordBakersfield, CA 933071699810176
  22. Gregory Petty, PA-CSan Diego, CA 921611558557785
  23. Hallie Pewthers, PASan Diego, CA 921231548918071
  24. Meagan Pezeshkian, PA-CAnaheim, CA 928011356095269
  25. Scott PezziniValencia, CA 913551386378842
  26. Cynthia Pfeiff, PA-COakland, CA 946121821006917
  27. Joshua Pfeiffer, PA-CBenicia, CA 945101447729736
  28. Shelby PfeifferRedlands, CA 923731679299788
  29. Jessica PflibsenSan Clemente, CA 926731265907935
  30. Alex Pham, PA-CSan Jose, CA 951481043813132
  31. Arianna Pham, PA-CStanford, CA 943051336548239
  32. Chris Pham, PARiverside, CA 925051588780738
  33. Christine Pham, PA-CStanford, CA 943051326786120
  34. Dalena Pham, PA-CWhittier, CA 906061295455053
  35. Doan Pham, PA-CAnaheim, CA 928081629698618
  36. Emily Pham, PA-CLaguna Hills, CA 926531730644527
  37. Helen Pham, PA-CTorrance, CA 905031962992693
  38. Huan PhamWestminster, CA 926831366256166
  39. Hung Pham, PAShafter, CA 932631760765085
  40. Jennie Pham, PA-COakland, CA 946091720558018
  41. Jenny PhamPleasanton, CA 945881730836487
  42. Joanna PhamMonterey, CA 939401417743261
  43. John Pham, PAStanford, CA 943051932153319
  44. Johnny-An Pham, PA CLos Angeles, CA 900291457332504
  45. Julie PhamLa Palma, CA 906231962286286
  46. Jullianne Pham, PA-CTracy, CA 953761477247427
  47. Karen PhamWest Sacramento, CA 956911245013309
  48. Kiana Pham, PA-CMilpitas, CA 950351467082677
  49. Kim Ngan PhamTustin, CA 927801265115406
  50. Kimberly Pham, PA-CGlendora, CA 917411609673623

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.