NPPES file of Aug 9, 2026

Pediatric Orthopaedic Surgery Physician in California

76 NPPES records list pediatric orthopaedic surgery physician with a practice address in California, 0.2 per 100,000 residents, the 23rd highest rate of 48. Los Angeles and San Diego 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 207XP3100X · 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, 14

  1. Los Angeles14
  2. San Diego9
  3. Orange8
  4. Palo Alto7
  5. Madera6

Pediatric Orthopaedic Surgery Physician records in California

  1. Selina Poon, MDPasadena, CA 911051184877003
  2. Stephanie Pun, MDStanford, CA 943051336336379
  3. Monthakan Ratnarathorn, M.D.Los Angeles, CA 900171326071762
  4. Lawrence Rinsky, M.D.Cupertino, CA 950141801942156
  5. Samuel Rosenfeld, M.DOrange, CA 928681235167107
  6. Alison Rozansky, MDEncino, CA 913161285834846
  7. Michael Russell, MD, MBA, MPHSanta Monica, CA 904011710484472
  8. Coleen Sabatini, MDSan Francisco, CA 941431902932635
  9. John Schlechter, D.O.Orange, CA 928681043379092
  10. Matthew Schmitz, M.D.San Diego, CA 921231568686871
  11. Kevin Shea, MDPalo Alto, CA 943041336150218
  12. James Shively, M.D.Oakland, CA 946091043518095
  13. Mauricio Silva, M.D.Los Angeles, CA 900071457391468
  14. Kit SongLos Angeles, CA 900201366523623
  15. Christopher Souder, M.D.San Diego, CA 921231851540199
  16. Kimberly Spahn, M.D.San Diego, CA 921341578859435
  17. Kali Tileston, MDWoodside, CA 940621003045683
  18. Vernon Tolo, MDLos Angeles, CA 900271497842017
  19. Munir Uwaydah, MDSan Fernando, CA 913401770793853
  20. Matthew Vance, MDSan Diego, CA 921211336316652
  21. John Vorhies, MDPalo Alto, CA 943041952692188
  22. Hugh Watts, MDLos Angeles, CA 900201043524051
  23. Carl Weinert, MDOrange, CA 928681710939681
  24. Julio Westerband, MDIrvine, CA 926121811106495
  25. Amanda Whitaker, M.D.Sacramento, CA 958171700111887
  26. Jeffrey Young, MDPalo Alto, CA 943041336305275

Source: CMS NPPES, primary taxonomy 207XP3100X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 23 of 48 per resident

  1. Pennsylvania0.2
  2. Washington0.2
  3. Mississippi0.2
  4. California0.2
  5. Minnesota0.2
  6. Illinois0.2
  7. 50 states and D.C.0.3

Source: CMS NPPES, primary taxonomy 207XP3100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

71.1% of these records appear in a Medicare file, against 72.4% 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. California71.1%
  2. United States72.4%

Pediatric Orthopaedic Surgery Physician records in California, measured

  • In a Medicare file54 of 76 · 71.1% here, 72.4% nationally
  • In the CMS Doctors and Clinicians file22 · 28.9% here, 36.4% nationally
  • Not updated in five years or more47 · 61.8% here, 53.5% nationally
  • Median graduation year2004 · the 22 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207XP3100X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

76 NPPES records list pediatric orthopaedic surgery physician (207XP3100X) as their primary taxonomy with a practice address in California: 0.2 per 100,000 residents against 0.3 nationally (50 states and D.C.). Los Angeles has 14 of them (18%).

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. Florida89
  2. Texas93
  3. New York58
  4. Ohio57

States with a similar rate per 100,000

  1. Minnesota0.2
  2. Washington0.2
  3. Illinois0.2
  4. Pennsylvania0.2

The largest states

  1. Texas93
  2. Florida89
  3. New York58
  4. Ohio57
  5. New Jersey40

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.