NPPES file of Aug 9, 2026

Pediatric Emergency Medicine (Pediatrics) Physician in California

177 NPPES records list pediatric emergency medicine (pediatrics) physician with a practice address in California, 0.5 per 100,000 residents, the 34th highest rate of 46. San Diego and Los Angeles 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 2080P0204X · 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, 65

  1. San Diego65
  2. Los Angeles33
  3. Oakland11
  4. Stanford10
  5. San Francisco9

Pediatric Emergency Medicine (Pediatrics) Physician records in California

  1. Juliet Spurrier, MDPalo Alto, CA 943011245322684
  2. Vanessa Tamas, M.D.San Diego, CA 921231326225368
  3. Yongtian Tan, MD, MBASan Francisco, CA 941431528555646
  4. Andrew Tang, D.O.San Diego, CA 921231184071516
  5. Nicole Titze, M.D.San Diego, CA 921231326400870
  6. Theresa Tran, M.D.San Diego, CA 921231417496985
  7. Leah Tzimenatos, MDSacramento, CA 958171265469704
  8. Stacey Ulrich, M.D.San Diego, CA 921231619049236
  9. Lusine Unanyan, DOLos Angeles, CA 900951992325062
  10. Jackson Vane, MDSan Diego, CA 921231952608580
  11. Tatyana Vayngortin, M.D.San Diego, CA 921231578967907
  12. Carolina Vega, M.D.San Diego, CA 921231427442086
  13. Shannon WaiSan Diego, CA 921231528395282
  14. Sophia WangLoma Linda, CA 923501518494970
  15. Vincent Wang, MDSan Diego, CA 921231083713655
  16. Kenshata Watkins, MDWalnut Creek, CA 945971245573393
  17. Laura Whitten, M.D.Plesant Hill, CA 945231477572048
  18. Emily Willner, MDLos Angeles, CA 900271295822609
  19. Harold Wilson, MDVan Nuys, CA 914061619960457
  20. Vanessa WongDublin, CA 945681134650005
  21. Winston Wu, M.D.San Diego, CA 921231265799803
  22. Karen Kim Yaphockun, D.O.San Diego, CA 921231861880817
  23. Kelly Young, M.D.Torrance, CA 905021831231810
  24. Yan Zhan, M.D.San Diego, CA 921231285070169
  25. Elise Zimmerman, M.D.San Diego, CA 921231649413071
  26. Kimberly ZimmermanLoma Linda, CA 923501780669390
  27. Donald Zukin, MDOakland, CA 946091790791242

Source: CMS NPPES, primary taxonomy 2080P0204X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 34 of 46 per resident

  1. Minnesota0.6
  2. New Mexico0.5
  3. Mississippi0.5
  4. California0.5
  5. Virginia0.4
  6. Iowa0.4
  7. 50 states and D.C.0.9

Source: CMS NPPES, primary taxonomy 2080P0204X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

29.4% of these records appear in a Medicare file, against 33.2% 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. California29.4%
  2. United States33.2%

Pediatric Emergency Medicine (Pediatrics) Physician records in California, measured

  • In a Medicare file52 of 177 · 29.4% here, 33.2% nationally
  • In the CMS Doctors and Clinicians file32 · 18.1% here, 24.1% nationally
  • Not updated in five years or more100 · 56.5% here, 48.9% nationally
  • Median graduation year2005 · the 32 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2080P0204X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

177 NPPES records list pediatric emergency medicine (pediatrics) physician (2080P0204X) as their primary taxonomy with a practice address in California: 0.5 per 100,000 residents against 0.9 nationally (50 states and D.C.). San Diego has 65 of them (37%).

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. Florida180
  2. Colorado173
  3. Pennsylvania137
  4. Massachusetts131

States with a similar rate per 100,000

  1. Mississippi0.5
  2. Virginia0.4
  3. New Mexico0.5
  4. Iowa0.4

The largest states

  1. Ohio298
  2. New York261
  3. Texas226
  4. Florida180
  5. Colorado173

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.