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 137 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. Susan Simon, NPModesto, CA 953551033226774
  2. Liana Simoni, NPAntioch, CA 945311245896828
  3. Lindsay Simpkins, NP-CRoseville, CA 956611457012122
  4. Brooke Simpson, NPArcata, CA 955211184375073
  5. Debra Simpson, NPSan Diego, CA 921201528184777
  6. Eileen Simpson, NPAnaheim, CA 928071184791949
  7. Fay Simpson, N.P.Riverside, CA 925081861447195
  8. Kellie Simpson, MS NPFullerton, CA 928351750358594
  9. Lindsay Simpson, NPStanford, CA 943051598138174
  10. Maryann Simpson, N.P.Folsom, CA 956301548246846
  11. Steven Sims, MS, RN, AGPCNP-BCOceanside, CA 920561316302151
  12. Kelvin SinLoma Linda, CA 923501629650932
  13. Denise Sinaga, NPNorthridge, CA 913251700207305
  14. Rhonda Sinclair, NPThousand Oaks, CA 913611548651664
  15. Ann Marie Siney-Yeh, RN, MSN, ANP-BCSanta Monica, CA 904041215052204
  16. Lisa Singer, MSN, AGACNP-BCOrange, CA 928681346671096
  17. Ardeep SinghStockton, CA 952071205565199
  18. Baljit SinghKerman, CA 936301164138368
  19. Iryna Singh, FNPOrange, CA 928681831659408
  20. Jaspreet SinghMarysville, CA 959011730681677
  21. Joshmeet SinghSacramento, CA 958251164252326
  22. Kamal Singh, FNPSan Ramon, CA 945831326910902
  23. Komalpreet SinghBakersfield, CA 933011750041810
  24. Mandeep Singh, NURSE PRACTITIONERAmerican Canyon, CA 945031861043788
  25. Surjit SinghYuba City, CA 959931699696336
  26. Raveewan Singleton, FNPEureka, CA 955011275616583
  27. Elena Sinitsyna, NPSan Diego, CA 921081124740816
  28. Savannah Sinke, AGNP-BCSan Diego, CA 921231649008780
  29. Nina Siregar, FNPLos Angeles, CA 900371104547686
  30. Priska SiregarBeaumont, CA 922231952256703
  31. Kaitlyn Sitts, NPFresno, CA 937201952811846
  32. Hanagry Siu, N.P.San Marcos, CA 920691639502297
  33. Karen Siu, NPMountain View, CA 940401225538762
  34. Malathy Sivapalasingam, NPPalo Alto, CA 943041114134251
  35. Jangmi Siverson, NPStanford, CA 943051003411497
  36. Gwyn Sivertsen, NPLos Angeles, CA 900271881761658
  37. Sandeep Sivia, NPSan Jose, CA 951261306095385
  38. Melissa Sixbey, FNP-COxnard, CA 930301811602568
  39. Mitchell Siy, DNPAnaheim, CA 928011437829058
  40. Valerie Sizemore, NP-CVisalia, CA 932771447261623
  41. Laura Sjoberg, ACNPLos Angeles, CA 900331043456924
  42. Katie Skutvik, NPDuarte, CA 910101720726359
  43. Debbie Slack-Gay, NURSE PRACTITIONERAntioch, CA 945091073920260
  44. Nicole Slade, ARNPSan Francisco, CA 941111720535453
  45. Selina Sladics, NPOrange, CA 928681023768033
  46. Leah Slater, DNP, FNP-CTemecula, CA 925921396386249
  47. Camly Slawson, NPPalo Alto, CA 943041659596401
  48. Alice Sleeth, NPSanta Rosa, CA 954031700060019
  49. Karen Slesnick, N.P.Sunnyvale, CA 940871366540056
  50. Jennifer Slocum, ARNPSacramento, CA 958161932190022

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.