NPPES file of Aug 9, 2026

Ambulatory Care Registered Nurse in California

940 NPPES records list ambulatory care registered nurse with a practice address in California, 2.4 per 100,000 residents, the 7th highest rate of 51. Los Angeles and Oakland have the most; each record links to the provider's NPI and the California license search. Page 1 of 19.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 163WP2201X · method

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

Los Angeles has the most, 272

  1. Los Angeles272
  2. Oakland78
  3. Torrance78
  4. Van Nuys54
  5. Sylmar49

Ambulatory Care Registered Nurse records in California

  1. Maria Elena AbedesTorrance, CA 905021184360992
  2. Susha AbrahamPalmdale, CA 935521053025304
  3. Ceasar AbrenicaMountain View, CA 940431982546107
  4. Leander AbundoVan Nuys, CA 914051679285670
  5. Angela AcainLancaster, CA 935351104791516
  6. Claire AcobaSan Fernando, CA 913401881123396
  7. Deo AcobaPalmdale, CA 935521306550850
  8. Trillondel Acosta, RNTorrance, CA 905091215451091
  9. Ryan AcunaLos Angeles, CA 900331932692191
  10. Jennifer Adams, MSN, RNFresno, CA 937031881436665
  11. Sylva AghmalianVan Nuys, CA 914051689104176
  12. Shelley Agrusa, RNLong Beach, CA 908131457881252
  13. Gloria Aguilar, REGISTER NURSEEl Monte, CA 917311043740731
  14. Miguel Aguilar, REGISTERED NURSEHuntington Park, CA 902551629697040
  15. Steffany Aguinaldo, RNVan Nuys, CA 914051023707486
  16. Joy Aguirre, RNHayward, CA 945451790241156
  17. Mahal AguirreLos Angeles, CA 900331508387952
  18. Dulce Aguirre De MelgarSylmar, CA 913421669982641
  19. Juliana AjokuLos Angeles, CA 900591013446988
  20. Christina Alcala, RNPalmdale, CA 935521194430736
  21. Blanca AlcantarSylmar, CA 913421750801064
  22. Brendi Aldaba Flores, RNGlendale, CA 912061700598307
  23. Sharon Allan, RNLos Angeles, CA 900331659894160
  24. Christopher Allison, RNTorrance, CA 905021114638046
  25. Sergio AlmendarizLos Angeles, CA 900331043731417
  26. Rebecca Almog, MSN, NPSan Diego, CA 921231962539957
  27. Roseline AluyiCarson, CA 908101316463839
  28. Helen AlvaLos Angeles, CA 900331295257541
  29. Lupe AlvaradoLos Angeles, CA 900221962925933
  30. David AlvarezLos Angeles, CA 900331346767076
  31. Katherine Alvarez, RNLong Beach, CA 908131457067035
  32. Maria Alvarez-Acevedo, RNLos Angeles, CA 900331134640501
  33. Caren AlwinSylmar, CA 913421154851855
  34. Marilyn AmayaLos Angeles, CA 900591710693239
  35. Yolanda Amaya, RNLancaster, CA 935341346760659
  36. Jamie AmbrosLos Angeles, CA 900331336634930
  37. Elsa Anamuro-CabreraEl Monte, CA 917311902327620
  38. Maria Ella AnasVan Nuys, CA 914051306376785
  39. Corazon AndalLa, CA 900331235651159
  40. Eliza Anderson, RNChico, CA 959281689521957
  41. Wenlin Andrade, BSNSylmar, CA 913421679093033
  42. Graciela AngelEast Los Angeles, CA 900221326886060
  43. Anastacia Anigbo, RNLos Angeles, CA 900071639884273
  44. Lucia Antunez-RamirezSylmar, CA 913421316467780
  45. Elizabeth Aquino, REGISTERED NURSEDublin, CA 945681790276491
  46. Ma.lourdes Aquino, RNLong Beach, CA 908131881123198
  47. Teresita Aquino, REGISTERED NURSELong Beach, CA 908131851166003
  48. Narineh ArakilianGlendale, CA 912061407568009
  49. Rofel AraulaPalmdale, CA 935521740995687
  50. Jennifer Arcega-Panopio, RNAlhambra, CA 918031265309645

Source: CMS NPPES, primary taxonomy 163WP2201X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 7 of 51 per resident

  1. Wyoming2.7
  2. Alaska2.6
  3. Wisconsin2.6
  4. California2.4
  5. Massachusetts2.3
  6. Rhode Island2.2
  7. 50 states and D.C.1.0

Source: CMS NPPES, primary taxonomy 163WP2201X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

2.2% of these records appear in a Medicare file, against 1.3% 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. California2.2%
  2. United States1.3%

Ambulatory Care Registered Nurse records in California, measured

  • In a Medicare file21 of 940 · 2.2% here, 1.3% nationally
  • In the CMS Doctors and Clinicians file5 · 0.5% here, 0.4% nationally
  • Not updated in five years or more413 · 43.9% here, 42.7% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 163WP2201X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

940 NPPES records list ambulatory care registered nurse (163WP2201X) as their primary taxonomy with a practice address in California: 2.4 per 100,000 residents against 1 nationally (50 states and D.C.). Los Angeles has 272 of them (29%).

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. Ohio199
  2. Massachusetts164
  3. Texas159
  4. Wisconsin151

States with a similar rate per 100,000

  1. Alaska2.6
  2. Rhode Island2.2
  3. Wyoming2.7
  4. Nebraska1.9

The largest states

  1. Ohio199
  2. Massachusetts164
  3. Texas159
  4. Wisconsin151
  5. Michigan130

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.