NPPES file of Aug 9, 2026

Registered Nurse in California

13,506 NPPES records list registered nurse with a practice address in California, 35 per 100,000 residents, the 30th highest rate of 51. San Diego and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 206 of 271.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 163W00000X · method

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

San Diego has the most, 1,223

  1. San Diego1,223
  2. San Francisco625
  3. Los Angeles526
  4. Sacramento508
  5. Fresno500

Registered Nurse records in California

  1. Gwin Richter, RNChico, CA 959261316125750
  2. Joy RichterCarmichael, CA 956081619656683
  3. Jeffrey Rickard, RNSan Francisco, CA 941211447171616
  4. Melinda Ricossa, RNSan Mateo, CA 944031114235280
  5. Megan Ridenour, RNFresno, CA 937031902619810
  6. Paul RiedelLa Quinta, CA 922531780322651
  7. Ronacris RiegoNorwalk, CA 906501699519728
  8. Margaret Riehm, RN, BSNColton, CA 923241659910875
  9. Bernard Rieping, RNFresno, CA 937031447061692
  10. Porsha Ries, MSN, RNRiverside, CA 925031356117956
  11. Gavin Rieser, RNLa Mesa, CA 919411750077384
  12. Justin Riestra, RNOakland, CA 946091508547282
  13. Jennifer Riffle, RNRancho Cordova, CA 957421750173209
  14. Malissa Riggins, RNBakersfield, CA 933051629387287
  15. Stephen RiggioDiscovery Bay, CA 945051235700329
  16. Jo Riggs, R.N.Oakland, CA 946051679940845
  17. Judith Righetti, R. N.Santa Rosa, CA 954091316982267
  18. Cynthia Rigoni, RNDana Point, CA 926291225794076
  19. Corazon Rigor, RNLos Angeles, CA 900731194651430
  20. Briana RileyCosta Mesa, CA 926271558200345
  21. Erma RileySan Francisco, CA 941101134598782
  22. Katherine Riley, RNBarstow, CA 923111134969363
  23. Marjorie Riley, PHNModesto, CA 953501366778102
  24. Veronica RileyRedding, CA 960011841594611
  25. Ronneane Riley-Johnson, PHNSan Leandro, CA 945771730066903
  26. Janine RilleraSan Diego, CA 921031245046895
  27. Ricarte RilleraSan Diego, CA 921101194310698
  28. Vanessa Pearl Rimando, RNSan Diego, CA 921581447860945
  29. Vernabela Rimando, RNVentura, CA 930031780028688
  30. Mia RimanelliLompoc, CA 934361598699886
  31. Ingrid Rimular, RNLos Angeles, CA 900731477495315
  32. Virginia RinaldiSan Diego, CA 921061235641408
  33. Jennifer RinconFresno, CA 937101033716733
  34. Salvador Rincon, BSN,RN,CARN,PMH-BCPalm Springs, CA 922621790191799
  35. Margo Riner, RNModesto, CA 953501346576626
  36. Barbara Ring-Miller, RNSacramento, CA 958241285889063
  37. Cynthia Ringoot, PHN, RNSan Diego, CA 921101568901916
  38. Dexter RingpisTarzana, CA 913561144910357
  39. Heather RingwaldEureka, CA 955011568897510
  40. Sheila Rinker, RN, PHNOceanside, CA 920541053667766
  41. Alexandra RioChula Vista, CA 919111346026853
  42. Cynthia Rios, RN, BSNSan Francisco, CA 941161669754339
  43. Elisa Rios, RNFontana, CA 923351982447108
  44. Isaima Rios, RNFontana, CA 923371902340623
  45. Lauren RiosConcord, CA 945201437404050
  46. Sandy RiosBrentwood, CA 945131487430831
  47. Albert Ripalda, RNWoodland Hills, CA 913031912286022
  48. Emily Risk, RNSan Bruno, CA 940661750169751
  49. Tina RisleyFresno, CA 937031154242477
  50. Joan RisseSanta Rosa, CA 954091053684175

Source: CMS NPPES, primary taxonomy 163W00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 30 of 51 per resident

  1. Maryland40
  2. Arkansas40
  3. Oklahoma36
  4. California35
  5. Kansas34
  6. South Carolina33
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 163W00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

2.5% of these records appear in a Medicare file, against 1.5% 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. California2.5%
  2. United States1.5%

Registered Nurse records in California, measured

  • In a Medicare file343 of 13,506 · 2.5% here, 1.5% nationally
  • In the CMS Doctors and Clinicians file146 · 1.1% here, 1.0% nationally
  • Not updated in five years or more7,263 · 53.8% here, 57.2% nationally
  • Median graduation year2018 · the 146 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 163W00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

13,506 NPPES records list registered nurse (163W00000X) as their primary taxonomy with a practice address in California: 35 per 100,000 residents against 44 nationally (50 states and D.C.). San Diego has 1,223 of them (9%).

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. Ohio9,656
  2. Texas8,921
  3. Washington5,708
  4. Michigan5,589

States with a similar rate per 100,000

  1. Kansas33.9
  2. Oklahoma35.9
  3. South Carolina32.8
  4. Vermont31.0

The largest states

  1. New York25,740
  2. Ohio9,656
  3. Texas8,921
  4. Washington5,708
  5. Michigan5,589

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.