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 217 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. Andrea Rhodes, PA-CSanta Barbara, CA 931051053543470
  2. Steve Rhyan, P.A.Ladera Ranch, CA 926941891020483
  3. Marina Riad, PA-CIrvine, CA 926181124858758
  4. Jaspreet Riar, PA-CFirebaugh, CA 936221184719460
  5. Jessica Ribera, PA-CLancaster, CA 935341619281631
  6. Dolly Ricafort, PA-CChula Vista, CA 919101831231034
  7. Jason Ricci, PAVallejo, CA 945891710490149
  8. Jordan Riccoboni, MPAWilmington, CA 907441083442123
  9. Joanne Rice, PA-CConcord, CA 945201295163608
  10. Natalie Rice, PA-SSan Francisco, CA 941431306559307
  11. Heather Rich, PA-CLos Angeles, CA 900481043566169
  12. Keith Rich, PA-CSan Diego, CA 921081790232122
  13. Matthew RichSanta Rosa, CA 954091366153645
  14. Curtis Richard, PAHarbor City, CA 907101992906697
  15. David Richards, PALynwood, CA 902621639899867
  16. Jennifer Richards, PALos Angeles, CA 900251912156043
  17. Linda Richards, PA-CVan Nuys, CA 914011316074529
  18. Amanda RichardsonSan Dimas, CA 917731750871760
  19. Brant Richardson, P.A.Santa Barbara, CA 931101023114188
  20. Camille RichardsonPomona, CA 917661336758705
  21. Shabnam Richardson, P.A.C.Santa Clara, CA 950511164582482
  22. Wendy Richardson, PA-CCanby, CA 960151508007238
  23. Michael RichieAlameda, CA 945011114796992
  24. Sean Richland, PA-CFountain Valley, CA 927081649655259
  25. Jennifer Richman, PA-CSan Francisco, CA 941081689218190
  26. Kali RichmondFresno, CA 937201811476195
  27. Tana Richter, P.A.-CAgoura Hills, CA 913011043427420
  28. Irene Ricks, PA-CPalo Alto, CA 943061336921329
  29. Lauren Riddle, PA-CSan Rafael, CA 949031184409963
  30. Melissa Rider, PA-CTruckee, CA 961611801285846
  31. Catherine Ridgway, PA-CSan Diego, CA 921031184887408
  32. Brian Riding, MS, PA-CFountain Valley, CA 927081750663126
  33. Alexandria RidlingVallejo, CA 945901255925202
  34. Corine Riedell, PA-CVentura, CA 930041871870626
  35. Nanette Riedeman, PAModesto, CA 953551588793483
  36. David Riel, PA-CBakersfield, CA 933111730170176
  37. Jessi Riel, PA-CHanford, CA 932301043829229
  38. Julia RielChino Hills, CA 917091518493709
  39. Lauren RieleBerkeley, CA 947051457129843
  40. Kent Riemer, PAKingsburg, CA 936311891139788
  41. Kyla Rienhart, PASan Diego, CA 921111659112977
  42. Susan Riesel, WHPACArcata, CA 955211174619787
  43. Sarah RiesingerSacramento, CA 958171265000921
  44. Alexia Riggs, PANewport Beach, CA 926631902432529
  45. Robyn Riggs, PA, ATCClaremont, CA 917111205432150
  46. Leonard Rigmaiden, PALos Angeles, CA 900341114043361
  47. Steven Rigor, PASalinas, CA 939011538114301
  48. Hannah RihaniLos Angeles, CA 900241467063826
  49. Betsy Riker, PASanta Cruz, CA 950641386764595
  50. Diana Riley, M.P.H., M.S.,P.A.-C.Lakeport, CA 954531730386046

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.