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 224 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. Jose Ruiz-Ortega, PA-CSanta Ana, CA 927031871851519
  2. Monica Ruiz-SosaSanta Maria, CA 934541255107025
  3. Jessica Rule, PA-CBig Bear Lake, CA 923151285290213
  4. Teejay Rull, PA-C, MPHLynwood, CA 902621154724987
  5. Benito Rumbo, PASanta Maria, CA 934541487485447
  6. Irene Rummel, PA-CSan Jose, CA 951211336704402
  7. Laura Rummel, P.A.-CFullerton, CA 928351497806921
  8. Allison RummellSanta Monica, CA 904041366167546
  9. Ritt RungsisullatanontFountain Valley, CA 927081508587676
  10. Paul Runyan, PA-CBakersfield, CA 933051700077427
  11. Kristin Rupert, PA-CWestlake Village, CA 913611871802389
  12. Jillianne Ruppert, PANipomo, CA 934441740833565
  13. Kristina RuschBelmont, CA 940021811314867
  14. Joe RusconiSacramento, CA 958201154824944
  15. Karen Rush, PAOakland, CA 946111629139985
  16. Kathleen Rusk, PASan Diego, CA 921201376654699
  17. Kensley RussColton, CA 923241487340543
  18. Alexandra RussellColton, CA 923241891154548
  19. Amber RussellDowney, CA 902421437013901
  20. William Russell, PAAnaheim, CA 928071174682801
  21. Sean Russick, PA-CSan Diego, CA 921201801356043
  22. Peter Russo, PAStockton, CA 952091588729941
  23. Ryan Rust, PA-CSan Diego, CA 921081235340829
  24. Nilufer Rustomji, PACulver City, CA 902301215449004
  25. Irene RutazihanaWoodland, CA 957761669210001
  26. Jose Ruvalcaba, PA-CLa Habra, CA 906311598198897
  27. Ashley Ryan, PA-CNational City, CA 919501689003956
  28. Cory Ryan, PAUpland, CA 917861447809876
  29. Heather Ryan, PA-CNewport Beach, CA 926601417265562
  30. Jill Ryan, PANewport Beach, CA 926601033143607
  31. Joseph Ryan, PA-CChula Vista, CA 919101619015401
  32. Marcie Ryan, PACDanville, CA 945061821102393
  33. Mary Ryan, PA-CSanta Cruz, CA 950601295974111
  34. Rachel Ryan, PA-CStanford, CA 943051295421196
  35. Rebecca Ryan, PA-CSan Diego, CA 921011669150637
  36. Shavawn Ryan, PA-CStanford, CA 943051467799148
  37. Sofia Ryan, PAPasadena, CA 911061306329586
  38. Tyler Ryan, P.A.Encinitas, CA 920241366899726
  39. Tyler Ryan, PA-COrange, CA 928681750115317
  40. Lisa Ryavec, PA-CLompoc, CA 934361396999116
  41. Tyler Rychlewski, PA-CSan Francisco, CA 941111215569926
  42. Tracy Rychtera, PA-CCorning, CA 960211972751790
  43. Lisa Ryder, PA-CRedwood City, CA 940631699916817
  44. Jennifer Ryerson, P.A.-CMountain View, CA 940401265683080
  45. Natalia Ryndin, P.A.Los Angeles, CA 900151801840392
  46. Christina Ryou, PALong Beach, CA 908081477200152
  47. Sally Sa, PA-CStanford, CA 943051578700712
  48. Mariam SaadPasadena, CA 911051861071722
  49. Shadi SaadatiVallejo, CA 945921083328876
  50. Lee Michelle Saarinas, PA-CLos Angeles, CA 900481932864188

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.