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 159 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. Debbie Williams, CNSStanford, CA 943051326320094
  2. Katelyn Williams, NP-CVisalia, CA 932771639821655
  3. Kena Williams, FNP-CPalo Alto, CA 943061518368059
  4. Kerry Williams, BC-FNPOrange, CA 928681376779066
  5. Leah Williams, NPFontana, CA 923351427125277
  6. Mamie Williams, A.R.N.P.Roseville, CA 956611386071264
  7. Mary Williams, RN, MS, FNPWalnut Creek, CA 945981174602825
  8. Nicole WilliamsGarden Grove, CA 928451275259657
  9. Nicole Williams, APRNSacramento, CA 958171578849139
  10. Sugi Williams, MSN, FNP-C, FNP-BCPalm Springs, CA 922621336876754
  11. Tatyana Williams, RNPoway, CA 920641750957692
  12. Valerie Williams, NPFontana, CA 923351093882847
  13. Wynnona Williams, RN-BSN-MSN-FNPLos Angeles, CA 900731902820806
  14. Wytoshery Williams, NURSE PRACTITIONERSan Diego, CA 921011700385747
  15. Yvonne Williams, RN, MSN, FNP-CChula Vista, CA 919141326371683
  16. Ann Williamson, APRNLos Angeles, CA 900951801316765
  17. Jessica Williamson, NPStanford, CA 943051255955233
  18. Mary Williamson, NPConcord, CA 945201699042457
  19. Dalynne Willis, FNPRoseville, CA 956611144784158
  20. Anna Willmer, NPSan Diego, CA 921231790122331
  21. Amy Wilson, NPLancaster, CA 935341437775657
  22. Antinique WilsonAntioch, CA 945091215765995
  23. Aubrey Wilson, PNP-ACPalo Alto, CA 943041619610821
  24. Bradley WilsonLoma Linda, CA 923501447993530
  25. Bridget Wilson, NPSacramento, CA 958171194877613
  26. Christina Wilson, NPStanford, CA 943051598908907
  27. Christina Wilson, NPStanford, CA 943051861991564
  28. Isabella Wilson, NPLos Angeles, CA 900951972427581
  29. Karla Wilson, FNP-CDuarte, CA 910101902014111
  30. Leah Wilson, N.P.Orange, CA 928681447435144
  31. Marie Wilson, F.N.P.Oxnard, CA 930301003857277
  32. Megan WilsonLos Angeles, CA 900951760758676
  33. Melissa Wilson, CPNP-ACSan Francisco, CA 941431427873223
  34. Unikka Wilson, NP-CRancho Cucamonga, CA 917301508590142
  35. Meredith Wiltsie, NPStanford, CA 943051770748956
  36. Stacy Winchell, N.P.Paradise, CA 959691912937095
  37. Karen Windoffer, FNPLa Jolla, CA 920371669713038
  38. Cynthia WindsorLos Angeles, CA 900421164294393
  39. Monica Windsor, DNP, FNPFresno, CA 937011710433834
  40. Melissa Winkelhaus, NPNapa, CA 945591609557149
  41. Wren Winston, FNPMonterey, CA 939401386002350
  42. Lorin Winters, NPPalo Alto, CA 943041255894945
  43. Melissa WipfSanta Monica, CA 904041093345878
  44. Erin Wipff, NPStanford, CA 943051629349410
  45. Cynthia Wirth, RNEncino, CA 913161295087922
  46. Melissa Witaschek, N.P.Hayward, CA 945451609951391
  47. Laura Witholt, FNP-CHemet, CA 925431336992890
  48. Ilana Withop, NPSan Francisco, CA 941431154374361
  49. Colleen Witte, RN MS ANPSan Francisco, CA 941101689674988
  50. Linda Witte, NPSanta Cruz, CA 950651346456431

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.