NPPES file of Aug 9, 2026

Clinical Nurse Specialist in California

163 NPPES records list clinical nurse specialist with a practice address in California, 0.4 per 100,000 residents, the 26th highest rate of 51. Stanford and San Diego have the most; each record links to the provider's NPI and the California license search. Page 4 of 4.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 364S00000X · method

Stanford has the most, 21

Clinical Nurse Specialist records in California

  1. Samantha Valcourt, RN, CNSPalo Alto, CA 943041780018804
  2. Melani Valentin, APRN, BCSan Diego, CA 921611104840172
  3. Margeaux Van HornSan Francisco, CA 941151932814696
  4. Sarah Vanderhoff, MSN, APRN, CNSLa Jolla, CA 920371902620099
  5. Colleen Vega, C.N.S.San Jose, CA 951251578834305
  6. Lai Ping Atalanta Wan, RN, CNSSan Rafael, CA 949031558427211
  7. Jacobett Wasonga-Agak, DNP, CNS, RNVan Nuys, CA 914051932924230
  8. Leticia Wilke, CNSStanford, CA 943051922388529
  9. Monica Wilson, RN, CNSSan Diego, CA 921611144405150
  10. Bart Winters, APRN-CNSTravis Afb, CA 945351831023332
  11. Natalie Wray, CNSLos Angeles, CA 900271033092937
  12. Julie Wurz, RN, MSN, CNSSonora, CA 953701891950192
  13. Cheryl Zlotnick, RN DRPHOakland, CA 946091285822841

Source: CMS NPPES, primary taxonomy 364S00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 26 of 51 per resident

  1. Texas0.5
  2. Nebraska0.5
  3. Virginia0.4
  4. California0.4
  5. North Carolina0.4
  6. Alaska0.4
  7. 50 states and D.C.0.5

Source: CMS NPPES, primary taxonomy 364S00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

22.1% of these records appear in a Medicare file, against 34.9% 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. California22.1%
  2. United States34.9%

Clinical Nurse Specialist records in California, measured

  • In a Medicare file36 of 163 · 22.1% here, 34.9% nationally
  • In the CMS Doctors and Clinicians file15 · 9.2% here, 20.6% nationally
  • Not updated in five years or more84 · 51.5% here, 60.2% nationally
  • Median graduation year2006 · the 15 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 364S00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

163 NPPES records list clinical nurse specialist (364S00000X) as their primary taxonomy with a practice address in California: 0.4 per 100,000 residents against 0.5 nationally (50 states and D.C.). Stanford has 21 of them (13%).

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. Illinois162
  2. Texas151
  3. Minnesota140
  4. Ohio234

States with a similar rate per 100,000

  1. North Carolina0.4
  2. Virginia0.4
  3. Louisiana0.4
  4. Maryland0.3

The largest states

  1. Ohio234
  2. Illinois162
  3. Texas151
  4. Minnesota140
  5. Oklahoma73

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.