NPPES file of Aug 9, 2026

Clinical Neurophysiology Physician in California

71 NPPES records list clinical neurophysiology physician with a practice address in California, 0.2 per 100,000 residents, the 14th highest rate of 45. Stanford and Loma Linda have the most; each record links to the provider's NPI and the California license search. Page 2 of 2.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2084N0600X · 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, 19

  1. Stanford19
  2. Loma Linda6
  3. San Diego5
  4. San Francisco4
  5. Fresno3

Clinical Neurophysiology Physician records in California

  1. Ria Pal, MDPalo Alto, CA 943041760988786
  2. Pardis Pooshpas, M.D.Torrance, CA 905021538796032
  3. Kathleen Poston, M.D.Stanford, CA 943051114053808
  4. Yvan Rodrigues, MDLadera Ranch, CA 926941487973103
  5. Carlos Rosario, MDSanta Ana, CA 927051477560829
  6. Jerryl Rubin, M.D.Arcata, CA 955211700868593
  7. Hewitt Ryan, M.D.Fresno, CA 937031710927850
  8. Muhammad Salim, MDPalm Springs, CA 922621205042579
  9. Daniel Shewmon, MDSylmar, CA 913421215962535
  10. William Shih, M.D.San Diego, CA 921341588636617
  11. Parastou Shilian, D.O.Santa Monica, CA 904031376785642
  12. Loveneet Singh, M.D.Fresno, CA 937011952560377
  13. Dong In Sinn, MDStanford, CA 943051689952343
  14. Philip Tseng, M.D.Loma Linda, CA 923501528201266
  15. Daniel Vitantonio, MDMarina Del Rey, CA 902921083024145
  16. Mark Vonzastrow, MDSan Francisco, CA 941581063686202
  17. Ralf Voshtina, DOStanford, CA 943051558948281
  18. Laurice Yang, MDStanford, CA 943051053545822
  19. Jared Yee, MDLoma Linda, CA 923571922485978
  20. Rosabel Young, M.D., M.S. PHARM.Redlands, CA 923731659487817
  21. Ilya Zolotnik, M.D.Loma Linda, CA 923571356785364

Source: CMS NPPES, primary taxonomy 2084N0600X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 14 of 45 per resident

  1. Pennsylvania0.2
  2. Illinois0.2
  3. Texas0.2
  4. California0.2
  5. Louisiana0.2
  6. South Carolina0.2
  7. 50 states and D.C.0.2

Source: CMS NPPES, primary taxonomy 2084N0600X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

80.3% of these records appear in a Medicare file, against 76.0% 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. California80.3%
  2. United States76.0%

Clinical Neurophysiology Physician records in California, measured

  • In a Medicare file57 of 71 · 80.3% here, 76.0% nationally
  • In the CMS Doctors and Clinicians file49 · 69.0% here, 66.3% nationally
  • Not updated in five years or more26 · 36.6% here, 51.4% nationally
  • Median graduation year2007 · the 49 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2084N0600X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

71 NPPES records list clinical neurophysiology physician (2084N0600X) as their primary taxonomy with a practice address in California: 0.2 per 100,000 residents against 0.2 nationally (50 states and D.C.). Stanford has 19 of them (27%).

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. Texas57
  2. New York44
  3. Ohio27
  4. Pennsylvania26

States with a similar rate per 100,000

  1. Illinois0.2
  2. Colorado0.2
  3. Michigan0.2
  4. Maryland0.2

The largest states

  1. Texas57
  2. New York44
  3. Ohio27
  4. Pennsylvania26
  5. Illinois24

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.