NPPES file of Aug 9, 2026

Registered Nurse in California

13,506 NPPES records list registered nurse with a practice address in California, 35 per 100,000 residents, the 30th highest rate of 51. San Diego and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 12 of 271.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 163W00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

San Diego has the most, 1,223

  1. San Diego1,223
  2. San Francisco625
  3. Los Angeles526
  4. Sacramento508
  5. Fresno500

Registered Nurse records in California

  1. Kristen Areyan, RNPalo Alto, CA 943041316745508
  2. Jocelyn ArgameSanta Ana, CA 927011295508182
  3. Albert Argo, REGISTERED NURSETustin, CA 927821144679457
  4. Minie ArgomidoColton, CA 923241821539362
  5. Emerald ArgonzaPasadena, CA 911051518742725
  6. Emilia ArgonzaLong Beach, CA 908051124785175
  7. Arven Arguelles, RNCompton, CA 902211619449956
  8. Maureena ArguellesFresno, CA 937031992626576
  9. Annette Argueta ReyesSalinas, CA 939081659256741
  10. Christine Arionget, RNSan Diego, CA 921051467060715
  11. Erica AristarhovTarzana, CA 913561851960272
  12. Yessica Arizaga RamirezIndio, CA 922011013629567
  13. Francisca Arjona, RNChula Vista, CA 919131376099754
  14. Brenda ArkellSanta Barbara, CA 931101003166638
  15. Roi Brenn ArlanteLancaster, CA 935361194414060
  16. Arsineh Armen KhachikianNorthridge, CA 913251134060858
  17. Benita ArmentroutSan Diego, CA 921011649092321
  18. Victoria Armer, RNSan Luis Obispo, CA 934011316306830
  19. Andrea Armin Hoiland, BS RNEureka, CA 955011992951206
  20. Jessica Armistead, RNVentura, CA 930031518406974
  21. Janice Armour, RNSacramento, CA 958251811875131
  22. Lauren Armour, RNOakland, CA 946051124867270
  23. Taylor Armour, RNTustin, CA 927801023732427
  24. Chris Armstrong, RNEl Centro, CA 922431063754992
  25. Dometrives Armstrong, MSN, FNP, PHN, RNChula Vista, CA 919151962875559
  26. Elizabeth Armstrong, RNCoalinga, CA 932101194218503
  27. Jessica ArmstrongFresno, CA 937301134366099
  28. Lauren Armstrong, RNAnderson, CA 960071740968668
  29. Shirley Armstrong, RNRoseville, CA 956781609117860
  30. Maureen Arnal, RNMarch Arb, CA 925181942641980
  31. Aaron Arnold, RNPalo Alto, CA 943041417775693
  32. Adrian ArnoldSan Francisco, CA 941211619899911
  33. Morgan ArnoldSanta Monica, CA 904031134665276
  34. Sharon ArnoldLa Palma, CA 906231629765680
  35. Melissa Arnold Padilla, RNModesto, CA 953551497005086
  36. Angela ArominVentura, CA 930031023957578
  37. Lior Aronoff, RNRedwood City, CA 940621003751256
  38. Karen Aronson, R.N.Chico, CA 959261518980903
  39. Fortunate Aronu, RNDaly City, CA 940151619210879
  40. Meenu Arora, R.N.Culver City, CA 902321134932353
  41. Michael Arrajj, RNLong Beach, CA 908101629616594
  42. John ArreolaBell Gardens, CA 902011225928427
  43. Vivian Arriaga, RNThousand Palms, CA 922761790147692
  44. Stephanie Arrieta, RNSanta Ana, CA 927011891631982
  45. Desiree Arrieta Guevara, RNPasadena, CA 911051861330052
  46. Diego Arrieta Paoli, RNLong Beach, CA 908061871438283
  47. Jennifer ArringtonFairfield, CA 945331649064007
  48. Annabelle Arroyo, R.N.Culver City, CA 902321487467239
  49. Carmen Arroyo, RNNapa, CA 945581700102225
  50. Roberto ArroyoCastaic, CA 913841891957189

Source: CMS NPPES, primary taxonomy 163W00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 30 of 51 per resident

  1. Maryland40
  2. Arkansas40
  3. Oklahoma36
  4. California35
  5. Kansas34
  6. South Carolina33
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 163W00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

2.5% of these records appear in a Medicare file, against 1.5% 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. California2.5%
  2. United States1.5%

Registered Nurse records in California, measured

  • In a Medicare file343 of 13,506 · 2.5% here, 1.5% nationally
  • In the CMS Doctors and Clinicians file146 · 1.1% here, 1.0% nationally
  • Not updated in five years or more7,263 · 53.8% here, 57.2% nationally
  • Median graduation year2018 · the 146 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 163W00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

13,506 NPPES records list registered nurse (163W00000X) as their primary taxonomy with a practice address in California: 35 per 100,000 residents against 44 nationally (50 states and D.C.). San Diego has 1,223 of them (9%).

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. Ohio9,656
  2. Texas8,921
  3. Washington5,708
  4. Michigan5,589

States with a similar rate per 100,000

  1. Kansas33.9
  2. Oklahoma35.9
  3. South Carolina32.8
  4. Vermont31.0

The largest states

  1. New York25,740
  2. Ohio9,656
  3. Texas8,921
  4. Washington5,708
  5. Michigan5,589

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.