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 5 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. Molly Cook, RNSan Diego, CA 921241629749387
  2. Debra CorneliusLong Beach, CA 908131346770161
  3. Maria Norma CorreaGlendale, CA 912061386165645
  4. Maria Cosme, RNEl Monte, CA 917311386267680
  5. Lupe CovarrubiasLong Beach, CA 908131164302857
  6. Souk Craft, RNLancaster, CA 935351043922693
  7. Dora Crespo, RNSan Fernando, CA 913401447789151
  8. Katrina CrisostomoSylmar, CA 913421952822215
  9. Judy CrockettDowney, CA 902421063963510
  10. Christina Crotwell, R/NSan Francisco, CA 941151841542602
  11. Benilda Crouse-Smith, NP, MSNSan Francisco, CA 941211346219854
  12. Rosalina Cruz, RNSacramento, CA 958201144339854
  13. Annie CryerVan Nuys, CA 914051851932511
  14. Diana CudiamatTorrance, CA 905021699295048
  15. Gloria CuevillasTorrance, CA 905021518487388
  16. Jenelyn Cunanan, REGISTERED NURSETorrance, CA 905021386174456
  17. Gene CuppTorrance, CA 905021922520949
  18. Karen DacayoEl Monte, CA 917321831612423
  19. Dianaliza Daguman-RosasLos Angeles, CA 900331093236499
  20. Thuy Dang, RNSan Jose, CA 951381346060134
  21. Roachelle Daniels, RNFresno, CA 937031518143783
  22. Barbara Danoff, IBCLCMartinez, CA 945531871982850
  23. Ernestina DarkoLoma Linda, CA 923541053240002
  24. Sri Darmawati, RNLos Angeles, CA 900331306363999
  25. Elsie DavidDowney, CA 902421730621079
  26. Laneatra De HughesWilmington, CA 907441407542186
  27. Lisa De La CruzOakland, CA 946021316558018
  28. Rosemary De Perez, NP MSNSan Francisco, CA 941101114128386
  29. Araceli De Vera, RNSan Lorenzo, CA 945801629424098
  30. Azela DebuqueTorrance, CA 905021740710920
  31. Luisa Decastro, RNDowney, CA 902421700337250
  32. Jures DecolongonSylmar, CA 913421972023349
  33. Ryan Del MandoFresno, CA 937031063231272
  34. Lance Del RosarioDowney, CA 902421124558663
  35. Arjay Dela Cruz, RNDowney, CA 902421790594729
  36. Elvia Delgado, REGISTERED NURSELos Angeles, CA 900221962922328
  37. Daniela DelimanSylmar, CA 913421871014761
  38. Julie Ann Delos Reyes, RNLos Angeles, CA 900031548136823
  39. Olivia DemossLos Angeles, CA 900331477075679
  40. Dominic Ermie Deogracias, RNChatsworth, CA 913111811648207
  41. Debora Deverel, RN III, MSNPalo Alto, CA 943041194563130
  42. Amy DiazTurlock, CA 953821407330384
  43. Jocelyn Diaz, RNVan Nuys, CA 914051619689197
  44. Luis DiazTorrance, CA 905021619498094
  45. Luz DiazLos Angeles, CA 900331609398940
  46. Vanessa Diaz, RNOakland, CA 946021801351432
  47. Cristy Dimaya, RNEl Monte, CA 917311093572828
  48. Patricia Distefano, RNLos Angeles, CA 900221023538626
  49. Liene Marice Dizon, RNDowney, CA 902421699584623
  50. Maria DolorLos Angeles, CA 900331164945788

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.