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 222 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. Cristina Rosales, PA-CMontebello, CA 906401215119821
  2. Rosina Rosario, PAStanford, CA 943051790861672
  3. Ryann Roscher, PA-CEncinitas, CA 920241316533458
  4. Anna Rose, P.A.-CSanta Monica, CA 904041104054501
  5. Jason Rose, PAWest Sacramento, CA 956051346555620
  6. Kelsea Rose, PASan Leandro, CA 945771861076267
  7. Larry Rosebraugh, P.A.Burbank, CA 915051811937105
  8. Maiya RoseffAnaheim, CA 928041477291169
  9. Andrea Roselman, PA-CStanford, CA 943051669932992
  10. Amy Rosenbaum, PA-CSan Diego, CA 921031013459478
  11. Aryeh Rosenberg, PASanta Monica, CA 904041376232835
  12. Corinne Rosenberg, PA-CStanford, CA 943051871864751
  13. Nicole Rosendo, PA-CFresno, CA 937201144714395
  14. Yuki Rosenkoetter, PALa Jolla, CA 920371487744009
  15. Noelle Rosenkrans, P.A.San Diego, CA 921031417053067
  16. Ekchhanak Rosenkranz, PA-CLa Jolla, CA 920371023591054
  17. Irving Rosenstein, PA-CVentura, CA 930031649756974
  18. Monique Rosenthal, PA-COakland, CA 946051699052258
  19. Nathaniel Rosete, PA-CFontana, CA 923351457530768
  20. Darrah RosinSan Diego, CA 921231881341352
  21. Alexandra Ross, PA-CWatsonville, CA 950761669142840
  22. Ana Ross, P.A.Stockton, CA 952031275654238
  23. Anne Ross, R.P.A-CEscondido, CA 920251447334883
  24. Celeste Ross, PA-CSanta Barbara, CA 931101194419002
  25. Collin Ross, PHDSan Ysidro, CA 921731629182050
  26. David Ross, PASan Leandro, CA 945781134100563
  27. Lori Ross, PA-CSan Francisco, CA 941101891342838
  28. Madeline Ross, PA-CTorrance, CA 905051194689018
  29. Michael Ross, PACBakersfield, CA 933011093748923
  30. Rebecca Ross, PA-CElk Grove, CA 957581811774326
  31. Stacy Ross, PA-CFresno, CA 937201174773808
  32. Tiffany Ross, PA-CSan Francisco, CA 941431003159526
  33. Jordanna Rosselli, PA-CSacramento, CA 958151093476111
  34. Brittany Rossi, PA-CSan Diego, CA 921221114887858
  35. Janet Rossi, PASacramento, CA 958161073537213
  36. Lance Rossi, P.A-CRoseville, CA 956611629090188
  37. Melissa Rossi, PAFolsom, CA 956301881878247
  38. Stephen RossiHuntington Beach, CA 926471407672538
  39. Aklil Rostai, P.A.Pleasanton, CA 945881174823454
  40. Alicia Roth, PAClaremont, CA 917111568715282
  41. Melissa Roth, PA-CBakersfield, CA 933111033454020
  42. Miriam Roth, PA-CSan Diego, CA 921341881970713
  43. Rachel Roth, PANewport Beach, CA 926601609547926
  44. David Rothbaum, PABaldwin Park, CA 917061740306976
  45. Theresa Rothrock, P.A.Redding, CA 960011972674463
  46. Daniel Rothstein, PA-CSan Bernardino, CA 924041750942561
  47. Keith Rouleau, PA-CTemecula, CA 925911215130562
  48. Ibrahim Rouzyi, PASan Jose, CA 951311912541798
  49. James Row, NP,PA-CSan Francisco, CA 941151760565691
  50. Ryan Rowan, PA-CTemecula, CA 925911487834644

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.