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 21 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. Heidi Butcher, NPBellflower, CA 907061972670735
  2. Ashli Butler, FNPAlameda, CA 945011942815998
  3. D'Shara Butler, NP-CPalo Alto, CA 943061538816541
  4. Joan Butler, MSN, FNP-C, PA-CFortuna, CA 955401407866080
  5. Joanne Butler, N.P.Encinitas, CA 920241174686687
  6. Maristela Butler, NPStanford, CA 943051760922603
  7. Regina Butler, FNP-BCHuntington Beach, CA 926471295317709
  8. Tracy ButlerSan Mateo, CA 944031457407199
  9. Harpreet ButtarSelma, CA 936621760100564
  10. Rasvin Buttar, N.P.French Camp, CA 952311104328152
  11. Alice Butzlaff, MSN, RN, NPSeaside, CA 939551376597989
  12. Susan Bye, NPSan Jose, CA 951211952497539
  13. Rachel Byers, MS, NP, AGACNP-BCLos Angeles, CA 900951568963809
  14. Stephanie ByrdRiverbank, CA 953671740102953
  15. Tatum Byrd, NPOakland, CA 946181306618954
  16. Edward Byrne, RNPVan Nuys, CA 914051972699148
  17. Eric Cabahug, NPTorrance, CA 905021598364705
  18. Elizabeth CaballeroReseda, CA 913351134958432
  19. Ceff Cabanban, RN, NP-CDowney, CA 902421467903385
  20. Cynthia Cabatan-Awang, NPLos Angeles, CA 900951588689616
  21. Catherine Cable, MSN, BSN, RN, C-PNPPalo Alto, CA 943041831670835
  22. Irene Cabral, R.N.P.Norco, CA 928601477726479
  23. Maria Cabula, NPLos Angeles, CA 900651477037828
  24. Arsenio Cachero, NPBakersfield, CA 933091225483514
  25. Vincent Ryan CacpalLong Beach, CA 908151699559922
  26. Meghan Cadena, PMHNP-BCSan Francisco, CA 941091538463260
  27. Sonya Cadmus, AG-ACNP-BCOrange, CA 928681215313465
  28. Kathleen Cagle, RN, NPFresno, CA 937211457790628
  29. Abigail Cahalan, RNStanford, CA 943051588215081
  30. Carolyn Cahn, N.P.Carpinteria, CA 930131861418600
  31. Niloufer Cainglit, RN, NPThousand Oaks, CA 913201497304786
  32. Emily CalabrettaPalo Alto, CA 943041558167486
  33. Julia Caldera, NPNorwalk, CA 906501295420693
  34. Raul CalderaNorwalk, CA 906501104511500
  35. Alexis Calderon, FNPBeaumont, CA 922231689416018
  36. Aprilyn Calderon, NPBuena Park, CA 906201528807385
  37. Carla Calderon, N.P.Mission Hills, CA 913451588917256
  38. Kimberly Calderon, NPBrawley, CA 922271932332608
  39. Emily Caldwell, N.P.Los Angeles, CA 900171487619763
  40. Julie Caldwell, F.N.PFresno, CA 937201740290568
  41. Cheryl Caletti, N.P.Santa Rosa, CA 954051487733069
  42. Alexis Calimeris, NURSE PRACTITIONERSan Francisco, CA 941091255196879
  43. Eric Call, NPSan Jose, CA 951281568454866
  44. Karen Callahan, F.N.P.Yuba City, CA 959911932124443
  45. Kelsey CallahanSonora, CA 953701770288532
  46. Mallory Callahan, NPStanford, CA 943051528778214
  47. Vanessa CallantaChula Vista, CA 919101285233767
  48. Elizabeth Callard, NPPalo Alto, CA 943041568684595
  49. Rose Callender, FNP-BCRialto, CA 923761669896551
  50. Rio Marie Calvert, FNP-CBrea, CA 928211083207252

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.