NPPES file of Aug 9, 2026

Nurse Practitioner in California

8,223 NPPES records list nurse practitioner with a practice address in California, 21 per 100,000 residents, the 41st highest rate of 51. Stanford and Los Angeles have the most; each record links to the provider's NPI and the California license search. Page 24 of 165.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 363L00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Stanford has the most, 572

  1. Stanford572
  2. Los Angeles520
  3. San Diego458
  4. San Francisco425
  5. Palo Alto318

Nurse Practitioner records in California

  1. Kelly Carroll, DNPSan Diego, CA 921011447135397
  2. Mary Carroll-Ambrose, NPSanta Rosa, CA 954041336397744
  3. Erick Cartaya Aguilar, NPModesto, CA 953501710435524
  4. Annika Carter, FNPRoseville, CA 956611841956679
  5. Erlinda Carter, NPOrange, CA 928661962611541
  6. Jeanette Carter, NPStockton, CA 952061740480342
  7. Lauren Carter, NPPalo Alto, CA 943041659812691
  8. Michelle Carter, FNPLa Jolla, CA 920371508312455
  9. Phoebe Carter, NPPalo Alto, CA 943041659155778
  10. Teresa Carter, FNPMarysville, CA 959011790912384
  11. Veronda Carter-Smith, FNPSan Francisco, CA 941111437286432
  12. Cecelia Cartman Seals, N.PMoreno Valley, CA 925551730571209
  13. Tamara Carver, NPRedwood City, CA 940631316141575
  14. Carissa Caryotakis, N.P.Sacramento, CA 958161124570627
  15. Emily Kay Casabar, NPStanford, CA 943051710324694
  16. Mae Casabar-Urbano, NPBakersfield, CA 933091508758814
  17. Michelle Kathleen Casanova, FNPTorrance, CA 905021528457249
  18. Belen Casares-Alvarado, FNPVisalia, CA 932911629819651
  19. Rebecca Casarotti, FNPWest Covina, CA 917901104751403
  20. May Casazza, PNPPalo Alto, CA 943041063772887
  21. Pamela Case, NPSan Diego, CA 921201629126529
  22. Brandy Casey, NPCosta Mesa, CA 926261669937512
  23. Kimberly Casey, NPTulare, CA 932741609074772
  24. Kelly Cash, FNPAtascadero, CA 934221164014247
  25. Ma Erica Jasmin Cash, FNP-CRiverside, CA 925031801501606
  26. Devon Casida, FNP-CFresno, CA 937111922586643
  27. Gladys Casillas, NPSignal Hill, CA 907551750632519
  28. Norma Casillas-Gonzalez, RN, BSN, PHNVisalia, CA 932771942433800
  29. Angela Cassagne, NPEmeryville, CA 946081548881618
  30. Jessica Cassidy, FNP-CMadera, CA 936361194400606
  31. Carley Cassity, NPLos Angeles, CA 900251588162556
  32. Alyssa Castagna, NPArroyo Grande, CA 934201083286249
  33. Diane Castignani, FNPSan Jose, CA 951281881132801
  34. Christina Castillo, NPVictorville, CA 923951386914729
  35. Dominic Castillo, PMHNP-BC, DNP, RNColton, CA 923241720810237
  36. Erica Castillo, NP-CNewport Beach, CA 926631295246056
  37. Frank Castillo, NPWalnut Creek, CA 945981639623770
  38. Jana Castillo, NPLoma Linda, CA 923541093418287
  39. Jettie Castillo, NPBellflower, CA 907061740357599
  40. Ligaya CastilloLos Angeles, CA 900331003940503
  41. Lucia CastilloSan Diego, CA 921081609792761
  42. Rosemary Castillo, NPGlendora, CA 917401891854519
  43. Stephanie Castillo, FNPLivingston, CA 953341083147730
  44. Yolanda Castillo, ANPCarlsbad, CA 920111780809046
  45. Brenda Castolo, AGACNP-BCPalo Alto, CA 943041083195408
  46. Ariana CastroLa Mesa, CA 919411427602101
  47. Arnold Castro, FNP-CBrawley, CA 922271407325582
  48. Elena CastroLos Angeles, CA 900331326445560
  49. Elizabeth CastroGlendora, CA 917411922505429
  50. Grayson Castro, NPSacramento, CA 958171972377935

Source: CMS NPPES, primary taxonomy 363L00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 41 of 51 per resident

  1. Alaska22
  2. Colorado21
  3. New Jersey21
  4. California21
  5. Louisiana20
  6. Maryland20
  7. 50 states and D.C.29

Source: CMS NPPES, primary taxonomy 363L00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

65.3% of these records appear in a Medicare file, against 73.4% 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. California65.3%
  2. United States73.4%

Nurse Practitioner records in California, measured

  • In a Medicare file5,368 of 8,223 · 65.3% here, 73.4% nationally
  • In the CMS Doctors and Clinicians file3,427 · 41.7% here, 57.4% nationally
  • Not updated in five years or more3,696 · 44.9% here, 44.6% nationally
  • Median graduation year2017 · the 3,425 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 363L00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

8,223 NPPES records list nurse practitioner (363L00000X) as their primary taxonomy with a practice address in California: 21 per 100,000 residents against 29 nationally (50 states and D.C.). Stanford has 572 of them (7%).

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. Florida8,844
  2. Illinois4,892
  3. Texas4,825
  4. North Carolina4,524

States with a similar rate per 100,000

  1. New Jersey21.1
  2. Colorado21.4
  3. Alaska21.5
  4. Louisiana20.4

The largest states

  1. Florida8,844
  2. Illinois4,892
  3. Texas4,825
  4. North Carolina4,524
  5. Ohio4,254

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.