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 175 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. Hoa Mi NguyenFresno, CA 937031437813219
  2. Hong Nguyen, RNSan Francisco, CA 941211891628640
  3. Hongngoc NguyenSan Jose, CA 951261306343660
  4. Huy NguyenLakewood, CA 907121902634728
  5. Jennifer Nguyen, RNGarden Grove, CA 928431821849548
  6. Jenny NguyenSan Diego, CA 921011306701768
  7. Jenny NguyenFresno, CA 937201871823609
  8. Jimmy NguyenGarden Grove, CA 928401548085962
  9. Julie Nguyen, RNSanta Ana, CA 927061316498827
  10. Kathleen Nguyen, RNSan Diego, CA 921011366856940
  11. Khanh Nguyen, RNSanta Ana, CA 927061245602820
  12. Kieu Hanh Nguyen, RNSanta Ana, CA 927071316048242
  13. Kieutram Nguyen, RNSan Jose, CA 951121003336389
  14. Kimloan NguyenColton, CA 923241801269428
  15. Kyle Nguyen, RNLos Angeles, CA 900591164217436
  16. Le NguyenAlhambra, CA 918031295659621
  17. Linh NguyenOakland, CA 946061750937710
  18. Loc NguyenColton, CA 923241881937175
  19. Lyna Nguyen, RNOrange, CA 928661407209513
  20. Mai Trinh NguyenWestminster, CA 926831417877051
  21. Man Nguyen, RNSan Marcos, CA 920781164012753
  22. Marcel NguyenTustin, CA 927821851125124
  23. Mary NguyenRancho Mirage, CA 922701225639073
  24. Michelle Nguyen, NPOrange, CA 928681225642903
  25. Minh-Ngoc NguyenHayward, CA 945411770469934
  26. My Nga NguyenSan Francisco, CA 941031164035481
  27. Nadia NguyenSan Francisco, CA 941031427890383
  28. Nancy NguyenSan Diego, CA 921081306327994
  29. Nhan NguyenTarzana, CA 913561437807856
  30. Phillip Nguyen, RNSan Jose, CA 951361437897758
  31. Quyen NguyenSan Diego, CA 921101134737661
  32. Raymond NguyenFontana, CA 923351477438257
  33. Stella NguyenAlhambra, CA 918011023985835
  34. Steven NguyenGarden Grove, CA 928411851961304
  35. Thanh Nguyen, REGISTERED NURSESan Diego, CA 921051659609600
  36. Thanh Nguyen, RNOakland, CA 946021578277059
  37. Thu-Thuy NguyenSanta Ana, CA 927061154496578
  38. Tony NguyenSan Francisco, CA 941111871417295
  39. Tran Nguyen, BSN PHN RNSunnyvale, CA 940861851931802
  40. VI NguyenMartinez, CA 945531821940222
  41. Rosalind Nguyen TranGilroy, CA 950201821612094
  42. Diana Nguyen-RuffaloSanta Ana, CA 927061598345753
  43. Christine Ni, RNAlhambra, CA 918031255208880
  44. Nancy Ni, R.N.Fullerton, CA 928311528279098
  45. Irish Nicholas, REGISTERED NURSEEl Centro, CA 922431427280411
  46. Melissa Nicholas, RN, BSN, PHNOxnard, CA 930361770851297
  47. James Nichols, RNSanta Maria, CA 934551265564884
  48. Michael Nichols, RNGarden Grove, CA 928431972187037
  49. Rhonda Nichols, RNSan Francisco, CA 941021720422322
  50. Ruth Nichols, RNStockton, CA 952021477824712

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.