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 223 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. Danielle Rowe, PA-CStanford, CA 943051316608904
  2. Arphy Roy, PAMountain View, CA 940401366953903
  3. Christian RoySunnyvale, CA 940861245048206
  4. Jonathan Roy, PA-CVictorville, CA 923951396891321
  5. Michael Roy, PAFontana, CA 923351598881740
  6. Brandon Rozell, PA-CMcClellan, CA 956521881836955
  7. Mary Rozelle, PA-CMountain View, CA 940401962449249
  8. Alla Rozova, PA-CLos Gatos, CA 950321629260971
  9. Chase RuanoSan Francisco, CA 941081538837521
  10. Diana Rubalcava, PA-CNewport Beach, CA 926631497512800
  11. Leticia Rubalcava, PA-CStanford, CA 943051790238046
  12. Ayala Rubanowitz, PALos Angeles, CA 900341316141450
  13. Sarah Rubin, PA-CLarkspur, CA 949391396350740
  14. Linda Rubino, PA-CSimi Valley, CA 930631114054889
  15. Kyle Rubinstein, PA-CDana Point, CA 926291851980585
  16. Haley Rubio, PA-CSan Marcos, CA 920781598394371
  17. Jeffrey Rubio, PA-CVisalia, CA 932911548665706
  18. Ruszel Leuer Rubio, PA-CLynwood, CA 902621508724428
  19. Beatriz Rubio Damian, P.A.Placerville, CA 956671497880637
  20. Danielle Rucci, PHYSICIAN ASSISTANTGlendale, CA 912031417680638
  21. Morgan Rucks, PA-CUkiah, CA 954821811706005
  22. Winston Rudder, PAC29 Palms, CA 922771912122276
  23. Haydee Rudholm, PALos Angeles, CA 900331730254996
  24. Natalie Rudningen, PA-SSan Diego, CA 921111568176089
  25. Leslie Rudolph, PA-CNewport Beach, CA 926631558809095
  26. Sophia RuefLos Osos, CA 934021033982814
  27. Raul Ruelas, PACovina, CA 917231619931128
  28. Roxzy Ruelle, PARoseville, CA 956611205231065
  29. Zoe Ruff, PA-CWhittier, CA 906041104788728
  30. Chantilay RuffinSan Rafael, CA 949011114488814
  31. Karla Rugamas, PACarson, CA 907451912247149
  32. Ashley Rugge, PA-CApple Valley, CA 923071083082234
  33. Danielle Ruggiero, RPA-CLomita, CA 907171558402065
  34. Natalie RuggieroFresno, CA 937201780087288
  35. Sharlyn Ruhe, PA-CSan Diego, CA 921611104915727
  36. Barbara Ruiterman, PAVista, CA 920831801803382
  37. Alexandra RuizVallejo, CA 945921861369266
  38. Ariana RuizAlhambra, CA 918031508576273
  39. Bacilio Ruiz, PAColton, CA 923241851932099
  40. Cecilia Ruiz, PA-CSantee, CA 920711558335414
  41. Christina Ruiz, PA-CMurrieta, CA 925621598479057
  42. Claudia Ruiz, PAEl Centro, CA 922431073658696
  43. Eleni Ruiz, PA-CLakewood, CA 907151477246932
  44. Jose Ruiz, P.A.La Jolla, CA 920931235122961
  45. Joshua RuizPrunedale, CA 939071891659355
  46. Kristyn Ruiz, PHYSICIAN ASSISTANTLos Angeles, CA 900371821767617
  47. Martha Ruiz, PA-CWestlake Village, CA 913611750912689
  48. Pamela Ruiz, PA-CMountain View, CA 940401760078976
  49. Paula Ruiz, P.A.West Hollywood, CA 900481467404947
  50. Ray Ruiz, PA-CSan Francisco, CA 941111447687041

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.