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 248 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. Samantha Stevens, PA-CRedwood City, CA 940611437939741
  2. Stephen Stevens, P.A.San Bernardino, CA 924041740293646
  3. Keshea Stevenson, PALong Beach, CA 908151578608279
  4. Ashley Stewart, PA-CRedding, CA 960011982343000
  5. David Stewart, PA-CStanford, CA 943051568450401
  6. Deina Stewart, PACPasadena, CA 911051154491074
  7. Jenna Stewart, PA-CCommerce, CA 900401629819149
  8. Jerilyn Stewart, P.A.Bakersfield, CA 933111780788042
  9. Katherine Stewart, PA-CEscondido, CA 920291215480637
  10. Kristin Stewart, P.A.Santa Barbara, CA 931011578577789
  11. Markira Stewart, PA-CSan Francisco, CA 941111093144271
  12. Martha Stewart, PASanta Cruz, CA 950651285707653
  13. Samantha Stewart, PA-CSanta Rosa, CA 954051073098000
  14. Robert Stickler, PASan Diego, CA 921111598172272
  15. Julia StiefelOakland, CA 946101609477504
  16. Megan Stiehr, PA-CStockton, CA 952091326219965
  17. Tyler Stiff, PA-CRancho Mirage, CA 922701528748696
  18. Erin Stillman, PA-CLos Angeles, CA 900951134307135
  19. Kristina Stilwell, PA-CLos Angeles, CA 900171114972726
  20. Ryan Stilwell, PA-CSanta Maria, CA 934541629598255
  21. Brian Stinnett, P.ARedlands, CA 923731275722274
  22. Shelby Stinson, PA-CWhittier, CA 906021649741968
  23. Jonathan Stobaugh, PA-CSan Bernardino, CA 924041063447647
  24. Ernest Stock, PATemecula, CA 925921548735350
  25. Casey Stockel, PAVentura, CA 930031609523042
  26. Erin StockmanRedlands, CA 923741104218486
  27. Nataliya StogniySan Diego, CA 921271669872354
  28. Allison Stokes, PA-CSanta Clara, CA 950511124195169
  29. Laura Stokes, PASan Francisco, CA 941111992861439
  30. Claudia Stoll, P.A.Highland, CA 923461396784096
  31. Vicki-Sue Stoll, PAHollister, CA 950231780639864
  32. Zerla Stoller, PALa Mesa, CA 919421265442792
  33. Kathryn Stollmeyer, PA-CEureka, CA 955011033315635
  34. Sia Stompro, PADanville, CA 945061942960950
  35. Hannah Stone, PA-CLos Angeles, CA 900481467968966
  36. Heather Stone, PARedding, CA 960021235207218
  37. Jillian StoneCosta Mesa, CA 926261962992396
  38. Marissa StoneLos Angeles, CA 900481427870971
  39. Mary Stone, PASan Diego, CA 921201053437285
  40. Mayngan Stone, PA-CCovina, CA 917231629097100
  41. Stephanie Stone, MSPANewport Beach, CA 926601548579972
  42. Madeline StorchFullerton, CA 928311629793567
  43. Jan Stottlemyer, PACorte Madera, CA 949251922052539
  44. Catherine Stotz, PHYSICIAN ASSISTANTFontana, CA 923351487721221
  45. Shanon StousPalo Alto, CA 943041740941699
  46. Benton Stout, PHYSICIAN ASSISTANTRiverside, CA 925071649508334
  47. Kent Stout, PADiamond Bar, CA 917651336357896
  48. Karen Straehley, PA-CEl Monte, CA 917321275027849
  49. Brianna StraleyRancho Santa Margarita, CA 926881164383626
  50. Stephanie Straley, PA-CSan Francisco, CA 941171437490810

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.