NPPES file of Aug 9, 2026

Addiction (Substance Use Disorder) Registered Nurse in California

139 NPPES records list addiction (substance use disorder) registered nurse with a practice address in California, 0.4 per 100,000 residents, the 32nd highest rate of 49. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 3 of 3.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 163WA0400X · method

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

Los Angeles has the most, 10

  1. Los Angeles10
  2. San Francisco10
  3. Oceanside7
  4. Grass Valley6
  5. Long Beach6

Addiction (Substance Use Disorder) Registered Nurse records in California

  1. Bridget O'ConnellCosta Mesa, CA 926271245722784
  2. Pamela Overend, RNOceanside, CA 920541942665849
  3. Tema Pacheco, RNSanta Rosa, CA 954011568899532
  4. Kathleen Park, NP MSNSan Francisco, CA 941101275668287
  5. Sergio Penunuri, RNUpland, CA 917861154283521
  6. Richard PerlsteinNewhall, CA 913211215396114
  7. Michael PetersSanta Rosa, CA 954041962796292
  8. Brian Peterson, REGISTERED NURSEEl Cajon, CA 920201023401882
  9. Lowanda Pierson, RNMSWSan Jose, CA 951281053440594
  10. Nataliya PolyanchykovaLong Beach, CA 908131881291292
  11. Patana PongvarinCosta Mesa, CA 926271649762188
  12. Sergey PotapovAlhambra, CA 918031386563559
  13. Debra PriestlyPomona, CA 917681720573348
  14. Alilei Pueyo, RNSalinas, CA 939011427750801
  15. Kathryn PughNorth Hollywood, CA 916011235965922
  16. Eliza Renwick, 394589Grass Valley, CA 959451871968180
  17. Diane Richards, REGISTERED NURSEGrass Valley, CA 959451275902074
  18. Angela RomeroSalinas, CA 939011073406104
  19. Siloe Sarceno, RNLos Angeles, CA 900591255166393
  20. Aditya Singh, RNAnaheim, CA 928091780477562
  21. Wesley Smaker, RNSalinas, CA 939011699957910
  22. Julia Spiros, RNAnaheim, CA 928071124786397
  23. Mabry Steed, RNSan Diego, CA 921031740820182
  24. Noelle Swanger, RNOak View, CA 930221437953635
  25. Daisy TapiaLos Angeles, CA 900591376493932
  26. Elias TemplosPomona, CA 917681467982009
  27. Maribel TrejoLong Beach, CA 908131780278903
  28. Roberto Valencia Cardenas, RNOceanside, CA 920561205458049
  29. Katriena Van De Velde, RNChico, CA 959261477197200
  30. Briana Villa, RNOceanside, CA 920561114657814
  31. Madison Weiss, RNEncinitas, CA 920241790341253
  32. Aden WelleLaguna Beach, CA 926511871270512
  33. Walter WeyermanSan Francisco, CA 941101770030090
  34. Kelly White, RNUpland, CA 917861275113227
  35. Kathryn WickardClearlake Oaks, CA 954231538783212
  36. Wallace Wiggam, RNSanta Rosa, CA 954031932739141
  37. Kurt Willis, RNTarzana, CA 913561295626521
  38. Eun Hey YoonLos Angeles, CA 900311699044297
  39. Joseph Zamudio, RNPomona, CA 917681467912147

Source: CMS NPPES, primary taxonomy 163WA0400X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 32 of 49 per resident

  1. Missouri0.5
  2. Mississippi0.4
  3. North Dakota0.4
  4. California0.4
  5. Nebraska0.4
  6. Virginia0.3
  7. 50 states and D.C.0.8

Source: CMS NPPES, primary taxonomy 163WA0400X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

1.4% of these records appear in a Medicare file, against 0.6% 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. California1.4%
  2. United States0.6%

Addiction (Substance Use Disorder) Registered Nurse records in California, measured

  • In a Medicare file2 of 139 · 1.4% here, 0.6% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 0.3% nationally
  • Not updated in five years or more69 · 49.6% here, 52.5% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 163WA0400X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

139 NPPES records list addiction (substance use disorder) registered nurse (163WA0400X) as their primary taxonomy with a practice address in California: 0.4 per 100,000 residents against 0.8 nationally (50 states and D.C.). Los Angeles has 10 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. Massachusetts140
  2. Washington127
  3. Michigan91
  4. Pennsylvania80

States with a similar rate per 100,000

  1. Virginia0.3
  2. Minnesota0.3
  3. Arizona0.3
  4. Mississippi0.4

The largest states

  1. Ohio430
  2. New York338
  3. Wisconsin262
  4. Massachusetts140
  5. Washington127

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.