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 186 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. Kathy Nguyen-PhamSan Diego, CA 921031043095862
  2. Ashley Nguyentat, PA-CStanford, CA 943051215589007
  3. Jack NhanLos Angeles, CA 900481174197131
  4. Jessica Nhan, PA-CFresno, CA 937261710779053
  5. Sandy NhanCovina, CA 917231710722715
  6. Ann Ni, PA-CStanford, CA 943051871112607
  7. Evan NiakamalEscondido, CA 920251639796873
  8. Hayatullah Niazi, PASacramento, CA 958231932612306
  9. Michael Nicholas, PA-CStanford, CA 943051922468834
  10. Coryn Nicholls, PA-CWalnut Creek, CA 945981487832739
  11. Melanie Nichols, PA-COceanside, CA 920561891319430
  12. Natalie Nichols, PA-CVentura, CA 930031821745373
  13. Rory Nichols, PA-CTravis Afb, CA 945351760981047
  14. Trevor Nichols, PA-CGrass Valley, CA 959451588602833
  15. Julie Nickelson, PA-COroville, CA 959661750695904
  16. Julie Niedens, PA-CEl Cajon, CA 920211558698399
  17. Hannah Niederland, PA-CRedding, CA 960011396593281
  18. Jen-Ling Nieh, PA-CPalo Alto, CA 943011578278115
  19. Karin Nielsen, PAWoodland Hills, CA 913671013033265
  20. Marie Nielsen, MS, PA-CRedlands, CA 923741396016093
  21. Anthony NietoSan Bernardino, CA 924081649135906
  22. Ida Nieuwenhuizen, PAFontana, CA 923351447327291
  23. Kaitlyn NievaTemple City, CA 917801801754403
  24. Samantha Nigro, PA-CSacramento, CA 958381134718802
  25. Surjit Nijjar, PAWest Sacramento, CA 956911659423093
  26. Kaitlyn Nikchevich, PA-CArcadia, CA 910061720678758
  27. Sara NiknamSacramento, CA 958171790292712
  28. David Niknia, PHYSICIAN ASSISTANTLos Angeles, CA 900661285816868
  29. Priscilla NikoghossianLos Angeles, CA 900331699446138
  30. Ayarpi Nikolopoulos, PA-CSanta Clarita, CA 913551841332376
  31. Jasmine NikzaiSan Jose, CA 951261881243657
  32. Alexandra NilesChico, CA 959261063125698
  33. Gleb Nilov, PA-CGlendale, CA 912061093425092
  34. Erick Nilson, PA-CAnderson, CA 960071154170413
  35. Ann NimesgernSan Jose, CA 951271790219707
  36. Chutima Ningsomboon, PACGranada Hills, CA 913441124057831
  37. Joshua Ninichuck, PA-C, MPAPDanville, CA 945261164651121
  38. Garrett NintzelStanford, CA 943051568866853
  39. Shauna NisaniLos Angeles, CA 900241467164178
  40. Kenneth Nisbet, PA-CSanta Barbara, CA 931011639220981
  41. Kelcey NishiharaSan Francisco, CA 941091821631458
  42. John NishiokaOrange, CA 928681316656416
  43. Karen NishiyamaSanta Ana, CA 927051821919762
  44. Marichu Nisperos, PA-CManteca, CA 953361285998690
  45. Daniela NissaniInglewood, CA 903031982381539
  46. Emade NjieLynwood, CA 902621881233229
  47. Angela No, PA-CWest Hollywood, CA 900481619609708
  48. Steven Noakes, PA-CSan Diego, CA 921341962603993
  49. Ryan Noble, PA-CLemoore, CA 932461093568388
  50. Mitchell Nobriga, STUDENTFolsom, CA 956301457080061

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.