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 11 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. Melissa Apodaca, RNCamarillo, CA 930101760141543
  2. Kevin Joseph ApolinarioSan Francisco, CA 941161982069381
  3. Natalie AppelTarzana, CA 913561174488001
  4. Victor Appiagyei-YeboahColton, CA 923241548809775
  5. Kwame AppiahBeaumont, CA 922231831441690
  6. Emily Apsay, R.N.Fresno, CA 937031831783505
  7. Abigail Aquino, RN, PHNSan Diego, CA 921231912568809
  8. Catherine AquinoSan Diego, CA 921041942600416
  9. Dianne Aquino, BSN, RNRancho Cordova, CA 957421326836214
  10. Edmar Jack AquinoColton, CA 923241447109913
  11. Grace AquinoSantee, CA 920711609193218
  12. Julian AquinoSan Francisco, CA 941091487510608
  13. Katherine AquinoSacramento, CA 958171023446374
  14. Lora Aquino, RNChula Vista, CA 919111750963211
  15. Nazareth Aquino, RNVacaville, CA 956871295585198
  16. Rommel Aquino, RNPalo Alto, CA 943041275498768
  17. Silvia Arabia, DNP, MPH, MSN, NP-CSan Mateo, CA 944031427736149
  18. Lorna Arafiles, RN BSNChula Vista, CA 919111285308205
  19. Alba Araiza, RNNevada City, CA 959591164931770
  20. Cristina Araiza, RNCarpinteria, CA 930131750711735
  21. Tawny Araiza, RNColton, CA 923241174116362
  22. Hilda ArakelianRohnert Park, CA 949281922954304
  23. Emin ArakeliansPasadena, CA 911071205727245
  24. Marithel Arambulo, MSN RNC-OB PHNAnaheim, CA 928061174329551
  25. Ann Gelli Aranas, RNLa Mesa, CA 919421730018177
  26. Elizabeth Aranda, RNAlhambra, CA 918031548007560
  27. Gissel Aranda, RNOakland, CA 946071821914250
  28. Hortencia ArandaLos Angeles, CA 900111235276429
  29. Stephany AraozVentura, CA 930091821889601
  30. Dee Arata, RNModesto, CA 953501588086342
  31. Juanita Arauz, REGISTERED NURSELong Beach, CA 908071033688585
  32. Wilfredo ArbizuGlendale, CA 912041588212740
  33. Iris Joan Arcala, MPH, BSN, RN, CHESEl Dorado Hills, CA 957621093156184
  34. Jennifer Arcangel-Mata, BSN, RN, PHNSacramento, CA 958231174710297
  35. Elisabeth Archer, RN, PHNOceanside, CA 920541386084341
  36. Megan ArcherOakland, CA 946051558132951
  37. Nicole Archer, RNSonora, CA 953701356212484
  38. Bailey Archuleta, RNOroville, CA 959651760371496
  39. Fema Marie Ardiente, RNPleasanton, CA 945881548017692
  40. Van Lewin Ardon, RN BSNLos Angeles, CA 900201730604604
  41. Brianna ArechigaLong Beach, CA 908061104224864
  42. Carrah ArechigaRedondo Beach, CA 902781003792854
  43. Rosa Arechiga, RNNewark, CA 945601649554171
  44. Salvador Arechiga, REGISTER NURSESan Diego, CA 921101821599689
  45. Anthony Arellano, RNLemon Grove, CA 919451497830509
  46. Diane ArellanoAnaheim, CA 928011629895826
  47. Maricela ArellanoSanta Ana, CA 927011164036513
  48. Mariana Arellano Arce, RNSacramento, CA 958141285450866
  49. Carolie Arendain, RNLos Angeles, CA 900201164222097
  50. Carina Arevalo, R.N.Corona, CA 928811730444241

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.