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 8 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. Terri GriffinOakland, CA 946051902364060
  2. Tracy Griffin, RNLos Angeles, CA 900031346777497
  3. Anna GrigoryevWinnetka, CA 913061386298529
  4. Judith GuerreroLos Angeles, CA 900331598282170
  5. Jovy C Guevarra, RNTorrance, CA 905021649700170
  6. Gesille GuiboneSylmar, CA 913421548780992
  7. Theresa Guion Rojes, RNTorrance, CA 905051073770020
  8. Rosa Guitron, REGISTERED NURSELong Beach, CA 908131548780208
  9. Monica GulinoSylmar, CA 913421861913675
  10. Mirian GutierrezLos Angeles, CA 900331578085817
  11. Rocio GuzmanSan Francisco, CA 941581548086770
  12. Roxanna Guzman, RN, BSNOakland, CA 946021922731181
  13. Matthew HaddadVan Nuys, CA 914051033822077
  14. Anna HambardzumyanVan Nuys, CA 914051760194161
  15. Wanda HardieLos Angeles, CA 900331750803078
  16. Carol HardyWalnut Creek, CA 945971952239915
  17. Arax HarootounianSylmar, CA 913421821510140
  18. Angela Harper, RNVan Nuys, CA 914051780558858
  19. Chellon HarrisLos Angeles, CA 900071205796091
  20. Danny Haynes, RNTorrance, CA 905021023547700
  21. Carletta HendersonLos Angeles, CA 900591104522218
  22. Xochitl Henninger, RNOakland, CA 946021730644469
  23. Amber HernandezFullerton, CA 928331063351898
  24. Ena Hernandez, RNLos Angeles, CA 900221467974824
  25. Jannet HernandezLos Angeles, CA 900031447113808
  26. Kathryn Hernandez, RNOakland, CA 946021780395491
  27. Leslee HernandezVan Nuys, CA 914051508730417
  28. Margot Hernandez, REGISTERED NURSELos Angeles, CA 900591831805423
  29. Maria Hernandez-ArambulaLos Angeles, CA 900591306375027
  30. Krystal Hernandez-NunezEast Los Angeles, CA 900221629779509
  31. Teresa Hernandez-Zamudio, R.N.Pasadena, CA 911031437697547
  32. Azucena HerreraEast Los Angeles, CA 900221790349207
  33. Monica Herrera, RNEl Monte, CA 917311932966785
  34. Donna Hethcock, RNOxnard, CA 930361629001094
  35. Edith HicksLos Angeles, CA 900591760189963
  36. Virginia Higareda, RNTorrance, CA 905021730817594
  37. Elizabeth HilarioDowney, CA 902421154855955
  38. Sauntrell Hill, RNNewark, CA 945601104414127
  39. Linda HoaglandAtascadero, CA 934221477729267
  40. Tam-Anh Hoang, RNOakland, CA 946021326880931
  41. Thi HoangOakland, CA 946021487110615
  42. Eileen Hoffman, RNSunnyvale, CA 940851841414893
  43. Susan Holley-Washer, RNVictorville, CA 923951376889584
  44. Sheila HollowayVan Nuys, CA 914051588194864
  45. Sarah HollyfieldLos Angeles, CA 900331598286965
  46. Mary HooverSan Diego, CA 921031356297782
  47. Caroline Howe, RNOakland, CA 946021679031728
  48. Brandii Hudson, RNOakland, CA 946051659107910
  49. Joanna HuertaLos Angeles, CA 900221396370227
  50. Joon HuhDowney, CA 902421710439179

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.