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 13 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. Mary NdubuizuLos Angeles, CA 900331942721386
  2. Karla Neal, REGISTERED NURSELos Angeles, CA 900071760903579
  3. Latasha Neal, RNLos Angeles, CA 900031770010894
  4. Lisa Nedlan, R.N.Eureka, CA 955031376882589
  5. Selamawite NegusseOakland, CA 946021720547698
  6. Corazon NejalLos Angeles, CA 900331023530128
  7. Gabriel Neoh, RNOakland, CA 946021356205215
  8. Betty Ng, NP MSNSan Francisco, CA 941331548384381
  9. Margarita Ngo, RNLos Angeles, CA 900221780397307
  10. Jay Nguyen, RNEl Monte, CA 917311033825674
  11. Brenda NietoLancaster, CA 935351053288423
  12. Rotha NilLong Beach, CA 908131851811368
  13. Alyssa Nixon, RNSalinas, CA 939051316782022
  14. Charles NojangVan Nuys, CA 914051326578196
  15. Helen Noorthoek, RNBerkeley, CA 947201174877393
  16. Jennifer Norcia, RNSan Jose, CA 951381427895770
  17. Amanda NorrishLivermore, CA 945501972341998
  18. Allison NunezLos Angeles, CA 900331477074409
  19. Kimana Nunez, BSNLos Angeles, CA 900071417823725
  20. Rhoda Nunn, REGISTERED NURSELancaster, CA 935351750811097
  21. Andrea Mari Nuyda, RNSan Jose, CA 951281790555613
  22. Lynn Obrien, NPSan Francisco, CA 941211114996980
  23. Abosede OgunkanmiOakland, CA 946021528523396
  24. Ijeoma Okwaraibekwe, RNLos Angeles, CA 900591932814191
  25. Juan OlmosTorrance, CA 905021639699234
  26. Michael Omega, NPLos Angeles, CA 900121780562843
  27. Mary OmezeLos Angeles, CA 900031225905425
  28. Belinda Onate, RNLos Angeles, CA 900331902328388
  29. Ifunanya OparahEl Monte, CA 917311033671987
  30. Bert OpleLancaster, CA 935351851003362
  31. Anthony Orellana, RNSanta Ana, CA 927011780225243
  32. Lydia OrtezLos Angeles, CA 900221497276927
  33. Teresa OrtizEl Monte, CA 917311760241046
  34. Karen Oswald, RNPalo Alto, CA 943041487465860
  35. Justina OtarolaSylmar, CA 913421386164838
  36. Lisa Ozaeta, FNP-C, RNLong Beach, CA 908061699305326
  37. Rizpah PabloFresno, CA 937301619897006
  38. Sandy PadillaLynwood, CA 902621962925305
  39. Arthur Philip Padlan, RNFremont, CA 945381902617624
  40. Eleana PakLos Angeles, CA 900331295252740
  41. Nidia Palma-Cordero, RNLong Beach, CA 908131093245839
  42. Onelie Pamaran, RNTorrance, CA 905021891224176
  43. Elsa Pantoja GarciaOakland, CA 946021982302659
  44. Andrea Paredes, RNTorrance, CA 905021386355212
  45. Nicolasa Parra, REGISTERED NURSEEl Monte, CA 917311295265130
  46. Daniel Pascual, RNHarbor City, CA 907101912436437
  47. Norie Pascual, NURSINGTorrance, CA 905021780113001
  48. Katrina PasionTorrance, CA 905021659892750
  49. Vrunda Patel, RNTorrance, CA 905021114448339
  50. Gina Pates, RN BSNLos Angeles, CA 900071447963319

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.