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 170 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. Kendra Murthil, RNSan Francisco, CA 941201528431194
  2. Naomi Murungu, NURSELake Elsinore, CA 925321073374310
  3. Zairah MusaLos Angeles, CA 900361376467613
  4. Mellanie MusakhanyanLos Angeles, CA 900231649680265
  5. Naomi Musembi-Johnson, RNBeaumont, CA 922231083300099
  6. Rebecca Muser, RNOroville, CA 959651619294238
  7. Sara Musko, RNWhittier, CA 906011245895168
  8. Ma. Irene Musni, RNRiverside, CA 925091457672453
  9. Juliet Musoke, RNWoodland Hills, CA 913641477139418
  10. Rhonda Musolino, RNRancho Cucamonga, CA 917301154653079
  11. William MussoFresno, CA 937211609095793
  12. Fawziyah Mustapha, RN,BSN,PHNWest Covina, CA 917911891674362
  13. Kate MustermanSan Diego, CA 921031235938705
  14. Senait Mususa, RNPalo Alto, CA 943041770300576
  15. Ruth Muthima, RNCoalinga, CA 932101316839624
  16. Teresia MuthogaSacramento, CA 958291336905421
  17. Lilian MutioDiamond Bar, CA 917651730919481
  18. Catherine MutuaTracy, CA 953771477210664
  19. Hazel MutucVacaville, CA 956871336083328
  20. Cheryl Mutumba, RNDavis, CA 956161992549067
  21. Elizabeth Muturi, RNEastvale, CA 928801285085340
  22. Ritah Mutyaba, RNPanorama City, CA 914021649156068
  23. Angela Muya, RNSanta Cruz, CA 950601184468100
  24. Aubrey Muzio, RNSan Francisco, CA 941021659856235
  25. Natalya Muzyka, AASOrange, CA 928681467728758
  26. Savannah MuzziDavis, CA 956161285220657
  27. John Mwaengo, RNElk Grove, CA 957581821551508
  28. Elizbeth MwaiHesperia, CA 923451154217966
  29. Lydia MwangiMurrieta, CA 925631780497552
  30. Margaret Mwangi, RNLake Elsinore, CA 925321396410189
  31. Perpetua Mwangi, CRNPDiamond Bar, CA 917651407557416
  32. Monica Mwaniki, RNLake Elsinore, CA 925321265279285
  33. Carolyn Mwaura, RNRowland Heights, CA 917481215417431
  34. Esther Mwaura, RNDiamond Bar, CA 917651699480806
  35. James Mwaura, RNJurupa Valley, CA 917521275026080
  36. Judy MwauraCorona, CA 928781639524382
  37. Lucy Mwaura, RNHighland, CA 923461669013892
  38. Stanley MwauraRancho Cucamonga, CA 917371780166595
  39. Stephen Mwaura, RNCorona, CA 928821336826619
  40. Emily Mwembu, RNEastvale, CA 928801508719170
  41. Dennis MwinyiAnaheim, CA 928011750965711
  42. Faith Mwiti, MS, MPH, RN, FNP-CSan Francisco, CA 941031558825935
  43. Kwanzaa MwongoziSan Francisco, CA 941031740005164
  44. Crystal Myatt, RNFort Irwin, CA 923101316380702
  45. Christi Myers, RNSusanville, CA 961301346523651
  46. Deborah Myers, RNSan Diego, CA 921011528334687
  47. Kara Myers, CNM NPSan Francisco, CA 941101376559526
  48. Kurt Myers, RNSan Diego, CA 921011457617433
  49. Leora Myers, RNSan Francisco, CA 941321154524312
  50. Nicole Myers, FNPEncinitas, CA 920241710361803

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.