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 93 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. Erica Martinez, NPLos Angeles, CA 900951225625221
  2. Erin Martinez, N.P.Bakersfield, CA 933011265495352
  3. Gustavo Martinez, NP-CBrawley, CA 922271922714617
  4. Idalmis Martinez, NPNorwalk, CA 906501104755743
  5. Janet Martinez, NPMoreno Valley, CA 925551093019309
  6. Luz Martinez, NPLancaster, CA 935341700926904
  7. Luz Martinez, NPFrench Camp, CA 952311720886815
  8. Michelle Martinez, NPLos Angeles, CA 900711104310002
  9. Natalie Martinez, N.P.San Diego, CA 921271770593188
  10. Nicole Martinez, FNP- BCOrange, CA 928681770726275
  11. Nicole Martinez, FNPSanta Barbara, CA 931101912449059
  12. Noelle Martinez, NPStanford, CA 943051477088011
  13. Tessa Martinez, NPLa Jolla, CA 920371164307930
  14. Vanessa Martinez, FNPVentura, CA 930031518770395
  15. Andie Martinez Watrous, FNP-BCSacramento, CA 958171750722161
  16. Josephine Martinez-Ornum, RN, FNPSalinas, CA 939011386681435
  17. Araceli Martinez-Singh, NPPalo Alto, CA 943051114540259
  18. Anna MartirosyanGlendale, CA 912071215817036
  19. Annemarie Martland, NPLa Jolla, CA 920371578704409
  20. Melissa Martz, NPPalo Alto, CA 943041740945948
  21. Christine Maser, FNPYuba City, CA 959911871138289
  22. Lauren Masio, NPMountain View, CA 940401740892579
  23. Judy Mason, NPPanorama City, CA 914021285750422
  24. Mariam Masri, NPStanford, CA 943051629508924
  25. Deborah Massetti, PAMadera, CA 936371508996422
  26. Nosheen Massey, NPLos Angeles, CA 900271184740318
  27. Renee Massicci, FNP-CFresno, CA 937221144012139
  28. Alexis Masson, NURSE PRACTITIONERFresno, CA 937041902485667
  29. Jasmine Massoumi, NPSanta Clara, CA 950541316437692
  30. Lauretta Masters, NP-CLos Angeles, CA 900731780793539
  31. Miki Masuda, AGNP ADULT/GERIATRICFountain Valley, CA 927081467862227
  32. Giselle Mata, FNPSanta Ana, CA 927061255659892
  33. Anna Mateo, NPInglewood, CA 903031992472641
  34. Bony Mathew, FNP-BCPalm Springs, CA 922641174282099
  35. Elsita Mathew, N.P.Bakersfield, CA 933091033172622
  36. Rhea Mathew, NPPalo Alto, CA 943041003759507
  37. Deborah Mathieu, NPWoodland Hills, CA 913671316063555
  38. Mary Grace Matin, FNP-CCosta Mesa, CA 926261427779297
  39. Kristina MatlockUpland, CA 917841982448015
  40. Anastasiya Matsuka, NPSacramento, CA 958151841138484
  41. Eri Matsumoto, NPMonterey, CA 939401568502037
  42. Maki Matsumura, NP-CWalnut Creek, CA 945971013316488
  43. Beth Mattera, NPLa Jolla, CA 920371255346607
  44. Kelly Matthaei, AGPCNP-BC, ACCNSSan Diego, CA 921231184080012
  45. Janette Matthess, NPSan Diego, CA 921031457694549
  46. Candace Matthews, BSN, RN, MSN, FNPSan Francisco, CA 941101316271745
  47. Jennifer Matthews, NPPalm Desert, CA 922111861170045
  48. Lori Matthews, NPSacramento, CA 958171306886239
  49. Nancy Mattioli, N.P.San Diego, CA 921261457361867
  50. Katherine Mattison, FNP-CMoreno Valley, CA 925551104215888

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.