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 15 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. Monica Ramos, RNLos Angeles, CA 900331457878951
  2. Rocio RamosLos Angeles, CA 900591558077560
  3. Vilma RamosTorrance, CA 905021295207843
  4. Michael RaquidanTorrance, CA 905021134641210
  5. Anna RashoyanVan Nuys, CA 914051578331286
  6. Laura RauOakland, CA 946051447717483
  7. Jay RedadaSylmar, CA 913421104346576
  8. Nerissa Redada, RNSylmar, CA 913421083134654
  9. Mildred RedobladoTorrance, CA 905021184117681
  10. Mark Rha, REGISTERED NURSEOakland, CA 946091972358299
  11. Crystal Richardson, REGISTERED NURSEOakland, CA 946021477310761
  12. Maria Rios, RNPasadena, CA 911031801335468
  13. Mitra RissmanySylmar, CA 913421932620275
  14. Jonica Rivas (gonzalez)Torrance, CA 905021396354825
  15. Katherine RiveraLos Angeles, CA 900331306367719
  16. Elizabeth Rivero-MorenoSylmar, CA 913421710408901
  17. Elrizah Rizada-Bautista, RNTorrance, CA 905021790214260
  18. Curtis Robertson, REGISTERED NURSETorrance, CA 905091760903017
  19. Cristina RoblesSylmar, CA 913421063932416
  20. Luis RoblesLos Angeles, CA 900331871010462
  21. Beverly RocasAlhambra, CA 918031629946520
  22. Evelyn RochaLos Angeles, CA 900591225857469
  23. Sujittra Rochana, RNSylmar, CA 913421790205623
  24. Diana Rodarte JimenezLos Angeles, CA 900221013626993
  25. Evelyn Rodas, REGISTER NURSELos Angeles, CA 900331376064774
  26. Erica Rodriguez, RNLos Angeles, CA 900071114448479
  27. Tonya Rodriguez, RNOroville, CA 959651699094508
  28. Veronica RodriguezSan Fernando, CA 913401831629187
  29. Jeanette Rogan, RNLos Angeles, CA 900331245757822
  30. Lisa RogersLos Angeles, CA 900331427574060
  31. Esmeralda RojasLos Angeles, CA 900591174228654
  32. Charles Rosales, RNLos Angeles, CA 900331215458658
  33. Mariana Rosales, RNLancaster, CA 935351679285373
  34. Ruth Rosales, RNHayward, CA 945451356809487
  35. Maribel Rosas, RNLos Angeles, CA 900591639608466
  36. Wendy Rossi, RNSan Diego, CA 921061831160654
  37. Cynthia Rowden, RNOakland, CA 946021013192277
  38. Liliana RubioDowney, CA 902421750815536
  39. Vilma RubioSylmar, CA 913421417478983
  40. Jennifer Ruffolo, RN, BSNLos Angeles, CA 900331063939031
  41. Martha RugprayoonSylmar, CA 913421568982932
  42. Raquel RuizLos Angeles, CA 900331750804373
  43. Elida SaavedraOakland, CA 946021366907081
  44. Rosario SacaLos Angeles, CA 900331932620309
  45. Khern Saelee, RNOakland, CA 946021407459001
  46. Cynthia Sakaki, NPAltadena, CA 910011548633936
  47. Daryn Sakamoto, RNTorrance, CA 905021629595301
  48. Lydia SalasOakland, CA 946021154886885
  49. Edwin SalazarPalmdale, CA 935521548135452
  50. Valerie Salgado-Ho, RNLos Angeles, CA 900271265842744

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.