NPPES file of Aug 9, 2026

Orthopaedic Surgery Physician in California

2,276 NPPES records list orthopaedic surgery physician with a practice address in California, 5.8 per 100,000 residents, the 49th highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 45 of 46.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207X00000X · 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, 187

  1. Los Angeles187
  2. San Diego154
  3. San Francisco121
  4. Sacramento79
  5. La Jolla55

Orthopaedic Surgery Physician records in California

  1. Grace Wong, MDOakland, CA 946111720281322
  2. Jeffrey Wong, M.D.Fountain Valley, CA 927081164790507
  3. Kee Wong, M.D.West Covina, CA 917901477599553
  4. Rodney Wong, M.D.Mountain View, CA 940401669425062
  5. David Wood, M.D.Colton, CA 923241003834243
  6. Katherine Wood, MDSan Diego, CA 921231588222970
  7. Clarence Woods, MDLos Angeles, CA 900071093722159
  8. Daniel Woods, M.D.San Luis Obispo, CA 934051831262716
  9. Lee Woods, M.D.Whittier, CA 906011407910094
  10. Richard Woods, M.D.Costa Mesa, CA 926271841365137
  11. Paul Woody, M.D.La Jolla, CA 920371134147606
  12. Steven Woolson, MDRedwood City, CA 940631245295781
  13. Spencer Woolwine, MDClovis, CA 936111649665092
  14. William Workman, M.D.Walnut Creek, CA 945981952376352
  15. Michael Wright, MDLoma Linda, CA 923541649242678
  16. Edward Wu, MDSacramento, CA 958171124419890
  17. I-Kung Wu, M.D., PH.D.San Francisco, CA 941431023457009
  18. Mark Wu, MDLos Angeles, CA 900481619474616
  19. Wei Wu, M.D.Santa Monica, CA 904041124553086
  20. Ronald Wyatt, MDMartinez, CA 945531194897926
  21. Lucas Wymore, MDRiverside, CA 925061518128081
  22. Walker Wynkoop, M.D.Los Banos, CA 936351760580427
  23. Grace Xiong, MDStanford, CA 943051306334859
  24. Mark Xu, MDSan Francisco, CA 941431003699471
  25. Vahe Yacoubian, MD, MPHLoma Linda, CA 923501003596990
  26. Mark Yakavonis, M.D.La Jolla, CA 920371225395783
  27. Omar Yaldo, M.D.Newport Beach, CA 926601548610470
  28. Ronald Yamada, M.D.Manteca, CA 953361457337362
  29. Kent Yamaguchi, M.D.Los Angeles, CA 900951649614819
  30. Akira Yamamoto, MDMountain View, CA 940401457675209
  31. Anthony Yang, M.DAlhambra, CA 918011013915461
  32. Jason Yang, MDLa Jolla, CA 920371366029324
  33. Jun Yang, MDRichmond, CA 948011760556369
  34. Justin Yang, MDLos Angeles, CA 900271437386158
  35. Paul Yang, M.D.West Covina, CA 917901245658772
  36. Megan Yankee, NPSacramento, CA 958171780167643
  37. Nicholas Yaru, M.D.Newport Beach, CA 926601861566507
  38. Lincoln Yee, M.D.Covina, CA 917231962671115
  39. Steven Yegge, M.D.Redlands, CA 923731215977541
  40. Michael Yeranosian, M.D.Glendora, CA 917411932441094
  41. Bill Yeung, M.D.La Palma, CA 906231093964587
  42. Rosemary Yi, MDGlendora, CA 917411871804880
  43. Clark YinLa Jolla, CA 920371114555661
  44. Andrew Yoo, M.D.La Mesa, CA 919421437506003
  45. Ari Youderian, M.D.Laguna Woods, CA 926371083818173
  46. Charles Young, M.D.Valencia, CA 913551528236965
  47. Serena Young-Nguyen, M.D.Long Beach, CA 908061457351090
  48. Edward Younger, M.D.Carmichael, CA 956081104939933
  49. Eric Yu, MDSan Diego, CA 921031467544536
  50. Frank Yuan, MDTorrance, CA 905021184248957

Source: CMS NPPES, primary taxonomy 207X00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 49 of 51 per resident

  1. Tennessee6.6
  2. Florida6.5
  3. Arizona6.2
  4. California5.8
  5. Nevada5.1
  6. Texas5.0
  7. 50 states and D.C.7.4

Source: CMS NPPES, primary taxonomy 207X00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

74.0% of these records appear in a Medicare file, against 76.5% 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. California74.0%
  2. United States76.5%

Orthopaedic Surgery Physician records in California, measured

  • In a Medicare file1,684 of 2,276 · 74.0% here, 76.5% nationally
  • In the CMS Doctors and Clinicians file1,347 · 59.2% here, 62.5% nationally
  • Not updated in five years or more1,493 · 65.6% here, 56.8% nationally
  • Median graduation year2003 · the 1,347 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207X00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,276 NPPES records list orthopaedic surgery physician (207X00000X) as their primary taxonomy with a practice address in California: 5.8 per 100,000 residents against 7.4 nationally (50 states and D.C.). Los Angeles has 187 of them (8%).

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. Texas1,514
  2. Florida1,470
  3. New York1,339
  4. Pennsylvania1,253

States with a similar rate per 100,000

  1. Arizona6.2
  2. Nevada5.1
  3. Tennessee6.6
  4. Alabama6.7

The largest states

  1. Texas1,514
  2. Florida1,470
  3. New York1,339
  4. Pennsylvania1,253
  5. Illinois995

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.