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 108 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. Eileen Nugent, NPLos Angeles, CA 900341992864615
  2. Nica Rianne NuguidSan Francisco, CA 941041306571294
  3. Marissa Nunes, AGACNP-BCCitrus Heights, CA 956211700423936
  4. Alejandro Nunez, FNP-BCPalm Springs, CA 922621407713985
  5. Emmanuel NunezBakersfield, CA 933111487362539
  6. Molly E Nunez, NPOrange, CA 928681851473037
  7. Megan Nunley, FNP-CTemecula, CA 925911942029681
  8. Sarah Nuterangelo-Van Leuven, APRN, FNP-BC, NP-CEscondido, CA 920251013676667
  9. Elana NuthalsStanford, CA 943051356747398
  10. Chioma Nwabude, N.PBrea, CA 928211326386962
  11. Mary Nwabunor, NURSE PRACTITIONER (Chico, CA 959261780008102
  12. Rachael Nwadike, NURSE PRACTITIONERLoma Linda, CA 923571063082584
  13. Ogechukwu Nwammuo, NPMilpitas, CA 950351457191355
  14. Nneka NwaniEastvale, CA 928801457804668
  15. Angel Nwochie, NPLong Beach, CA 908131821341777
  16. Uchenna Nwoko, FNPGardena, CA 902491346833530
  17. Olive Nworie, RN, FNP-CLos Angeles, CA 900331053689893
  18. Onyebuchi Nwosu, FNPLos Angeles, CA 900371487168456
  19. Linda Nyagaya, DNP, FNP/AG-BCLong Beach, CA 908021235612193
  20. Laura Nyirady, NPFSan Bernardino, CA 924081730219536
  21. Laura O'Bannon, ARNPPalo Alto, CA 943041245349356
  22. Jason O'Brien, NPFresno, CA 937211013317163
  23. Caoilfhionn O'Connor, DNPLa Jolla, CA 920931184386864
  24. Erin O'ConnorSan Francisco, CA 941101093561813
  25. Karen O'ConnorRoseville, CA 956611912855941
  26. Kelly O'Connor, NPSan Diego, CA 921301750957627
  27. Mary Jean O'Connor, N.P.Laguna Beach, CA 926511871515601
  28. Patricia O'Donnell, NURSE PRACTITIONERLaguna Beach, CA 926511649425752
  29. Kate O'Flaherty-Keese, P.N.P.San Diego, CA 921231144417726
  30. Kim O'Hair, NPSan Francisco, CA 941151902848013
  31. Kathleen O'Hearn, NPPalo Alto, CA 943041386089449
  32. Shauna O'Leary, NPPalo Alto, CA 943051326308354
  33. Skylee O'Neal, APRNPalo Alto, CA 943061942804471
  34. Danielle O'Neill, NPStanford, CA 943051801614615
  35. Tammy O'Riley, FNP-CSan Diego, CA 921031235413436
  36. Sophie O'Shaughnessy, F.N.PRedwood City, CA 940631649322330
  37. Kerry O'SullivanSan Diego, CA 921611043776495
  38. Darla OakReseda, CA 913351891868337
  39. Joshua Oakes, NPEureka, CA 955011831969856
  40. Egis Oakley, NPSan Diego, CA 921031063265320
  41. Serene Obagi, NP-CBeverly Hills, CA 902101023841046
  42. America Obezo, NP-CHuntington Park, CA 902551538832837
  43. Martha ObilorRiverside, CA 925031306202387
  44. Jonas Obispo, NPSanta Monica, CA 904041699350074
  45. Lorna Ocampo-Tatel, NPGardena, CA 902471609071422
  46. Joiemhil Jemicca OcarizaLos Angeles, CA 900111104542877
  47. Mandi Occhiuto, FNPSylmar, CA 913421669240438
  48. Erin Ocegueda, NPSan Gabriel, CA 917781841811304
  49. Erlinda Ochoa, RN ; NPSan Diego, CA 921051346437464
  50. Rhonda Ochoa, NPFontana, CA 923351285782110

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.