NPPES file of Aug 9, 2026

Nurse Practitioner in California

8,223 NPPES records list nurse practitioner with a practice address in California, 21 per 100,000 residents, the 41st highest rate of 51. Stanford and Los Angeles have the most; each record links to the provider's NPI and the California license search. Page 29 of 165.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 363L00000X · method

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

Stanford has the most, 572

  1. Stanford572
  2. Los Angeles520
  3. San Diego458
  4. San Francisco425
  5. Palo Alto318

Nurse Practitioner records in California

  1. Joanne Choi, NPLos Angeles, CA 900341649998212
  2. Kelly Choi, MSN, FNP-CRancho Cucamonga, CA 917301598200446
  3. Kumok ChoiLos Angeles, CA 900201225379282
  4. Michelle Choi, CPNPPalo Alto, CA 943041932865177
  5. Misun Choi, NPSanta Ana, CA 927041386193480
  6. Saiehee Choi, RNSacramento, CA 958641598293094
  7. Stephanie Choi, NPPalo Alto, CA 943041356699086
  8. Yumi ChoiRiverside, CA 925011841171014
  9. Hyeun Sook Chon, NPPalo Alto, CA 943041598217267
  10. Carrie Chong, NPBellflower, CA 907061750458501
  11. Grace Chong, NPLos Angeles, CA 900731780006270
  12. Jenniefer ChongCovina, CA 917231588218523
  13. Roy ChongAnaheim, CA 928011386330389
  14. Sumi ChongSan Francisco, CA 941151568701647
  15. Jeffrey Chou, NURSE PRACTITIONERSan Francisco, CA 941431619434628
  16. Kristen Chou, DNP, FNP-BCSan Mateo, CA 944041083126064
  17. Lydia Chou, NPStanford, CA 943051679914501
  18. Sarah Chou, NURSE PRACTICTIONERLos Angeles, CA 900951356094320
  19. Deborah Chow, NPLong Beach, CA 908141710991757
  20. Sarah King Wah Chow, NPWest Hollywood, CA 900481700185261
  21. Sharon Chow, NPSan Gabriel, CA 917761245508340
  22. Luna Chowdhury, NPSanta Clarita, CA 913901689359226
  23. Stephanie Choy, CPNPPalo Alto, CA 943041336754282
  24. Mary Chrisman, NP-CCarmichael, CA 956081750886412
  25. Shawna Chrisman, NP,RN,MS,ACNPRoseville, CA 956781164510970
  26. Angela Christian, N.P.Walnut Creek, CA 945981023442167
  27. Carrie Christiansen, NURSE PRACTITIONERDuarte, CA 910101245342336
  28. Leslie Christie, NPSanta Cruz, CA 950621528039005
  29. Francine ChuLa Mesa, CA 919421154771996
  30. Linda Chu, NPVisalia, CA 932771497325641
  31. Olivia Chu, NPStanford, CA 943051851617609
  32. Lyra Fumiko ChuaNapa, CA 945591407404387
  33. James Ross Chuatoco, NPFoothill Ranch, CA 926101215771670
  34. Nancy Chuks-Orji, NPAntioch, CA 945311467840850
  35. Catherine Chukwuma, NPTracy, CA 953771093313587
  36. Esther ChukwurahLos Angeles, CA 900121588909972
  37. Brian Chung, NPStanford, CA 943051881449882
  38. Chansun Chung, NPBaldwin Park, CA 917061033267927
  39. Jayme Chung, ACNP-BCSan Diego, CA 921271861794943
  40. Nari ChungGardena, CA 902471578272563
  41. Thomas Chung, FNP-CPalm Springs, CA 922621114378171
  42. Cheryl ChuongSan Diego, CA 921211588472591
  43. Lisa Cianfichi, NPStanford, CA 943051134144462
  44. Cynthia Ciaschi, NPLa Jolla, CA 920931750391512
  45. Shirlee Cicale, FNPLemoore, CA 932461073539268
  46. Jill Cielnicky, NPMadera, CA 936381033271796
  47. Christine Cifelli, NPSouth Lake Tahoe, CA 961501043209059
  48. Jessica Cintron, NPOntario, CA 917621376151795
  49. Marianna Cisneros, FNP-CLa Mesa, CA 919411760200331
  50. Frania Ciszewski, NPSanta Monica, CA 904041952815714

Source: CMS NPPES, primary taxonomy 363L00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 41 of 51 per resident

  1. Alaska22
  2. Colorado21
  3. New Jersey21
  4. California21
  5. Louisiana20
  6. Maryland20
  7. 50 states and D.C.29

Source: CMS NPPES, primary taxonomy 363L00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

65.3% of these records appear in a Medicare file, against 73.4% 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. California65.3%
  2. United States73.4%

Nurse Practitioner records in California, measured

  • In a Medicare file5,368 of 8,223 · 65.3% here, 73.4% nationally
  • In the CMS Doctors and Clinicians file3,427 · 41.7% here, 57.4% nationally
  • Not updated in five years or more3,696 · 44.9% here, 44.6% nationally
  • Median graduation year2017 · the 3,425 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 363L00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

8,223 NPPES records list nurse practitioner (363L00000X) as their primary taxonomy with a practice address in California: 21 per 100,000 residents against 29 nationally (50 states and D.C.). Stanford has 572 of them (7%).

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. Florida8,844
  2. Illinois4,892
  3. Texas4,825
  4. North Carolina4,524

States with a similar rate per 100,000

  1. New Jersey21.1
  2. Colorado21.4
  3. Alaska21.5
  4. Louisiana20.4

The largest states

  1. Florida8,844
  2. Illinois4,892
  3. Texas4,825
  4. North Carolina4,524
  5. Ohio4,254

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.