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 45 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. Vicki ChinColton, CA 923241609020353
  2. Herissa Ching, BRNSan Francisco, CA 941121083204002
  3. Ronald Ching, RNCovina, CA 917241285417519
  4. Wonsuk ChingFresno, CA 937211972721900
  5. Yuk Pui ChingOakland, CA 946071316594443
  6. Paul Vincent ChiongFontana, CA 923351235776972
  7. Connie ChiouOakland, CA 946091740913250
  8. Kathia Chirinos, RNSan Francisco, CA 941141386595726
  9. Lorena ChisholmColton, CA 923241811255698
  10. Theodora Chitsiku, R.NFresno, CA 937221124254222
  11. Connie Chiu, RNOakland, CA 946071629627310
  12. Heidi ChiuOakland, CA 946071710742580
  13. Raquel ChiuSan Francisco, CA 941051992646053
  14. Tszyan Chiu, REGISTERED NURSESacramento, CA 958171881195006
  15. Kathryn Chmurny, R.N.Oceanside, CA 920541215159926
  16. Christine ChoBuena Park, CA 906211093144636
  17. Donna Cho, R.N.Costa Mesa, CA 926261750786315
  18. Eun ChoPalo Alto, CA 943041871310680
  19. Hynjin ChoBuena Park, CA 906211770849218
  20. Jessica Cho, RNOakland, CA 946091912635343
  21. Yoo Na ChoOrange, CA 928681053287078
  22. Youngsuk ChoElk Grove, CA 956241851048490
  23. Eun Sul Cho Roberts, RNCypress, CA 906301295357671
  24. Lesley Choate, R.N.Redding, CA 960011073899837
  25. Soohyun ChoeUpland, CA 917861356078307
  26. Tenzing ChoedonSan Francisco, CA 941091720873110
  27. Tenzin ChoejorSan Francisco, CA 941091427905595
  28. Tenzin ChoekeyEl Cerrito, CA 945301841955499
  29. Jinsook ChoiOrange, CA 928681700605151
  30. Ri Choi, RNSan Diego, CA 921191720924947
  31. Seonghee Choi, RNBrea, CA 928211831952654
  32. Sophia Choi, RN95336508Chula Vista, CA 919111659879435
  33. Stephen ChoiLong Beach, CA 908061871439851
  34. Susan Choi, R.N.Oakland, CA 946111730687674
  35. Vivian ChoiSan Francisco, CA 941581013738947
  36. Noelle ChongFontana, CA 923351770147894
  37. Alyssa Choo, RNOakland, CA 946051144765579
  38. Gina ChooLos Angeles, CA 900221003417353
  39. Michael ChooFresno, CA 937031043131261
  40. Priyanka ChopraTarzana, CA 913561366935488
  41. Sheila ChornowLos Angeles, CA 900191518834779
  42. Heng-Chun Chou, RNSan Jose, CA 951321417828567
  43. Kathleen ChouMountain View, CA 940401811827553
  44. Nicole Chou, RNFountain Valley, CA 927081679818553
  45. Iram Choudhry, RN BSNMerced, CA 953411972275089
  46. Cindy Chow, RNOakland, CA 946091295560720
  47. Julyan Chow, REGISTERED NURSEOakland, CA 946051609064260
  48. Rachel Chow, RNSanta Barbara, CA 931101104526243
  49. Lydia Chowa, DR.PH. RD, RN, DNPLancaster, CA 935341710587316
  50. Partha ChowdhuryConcord, CA 945201639732142

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.