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 44 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. Marc Weise, M.D.Pismo Beach, CA 934491609843499
  2. Andrew Weiss, MDBeverly Hills, CA 902111497827430
  3. Jennifer Weiss, MDLos Angeles, CA 900271215028022
  4. Jerome Weiss, M.D.Modesto, CA 953551992745251
  5. Noah Weiss, MDSonoma, CA 954761225126444
  6. Stephen Weiss, M.D.Santa Ana, CA 927051326265307
  7. John Welborn, M.D.Pinole, CA 945641235179144
  8. Richard Welch, MDNapa, CA 945581275611006
  9. Dennis Wenger, M.D.San Diego, CA 921231932270790
  10. Stephen Wertheimer, M.D.Los Alamitos, CA 907201952747701
  11. Orest Wesely, M.D.Stockton, CA 952191184038960
  12. Lauren Wessel, MDLos Angeles, CA 900241184018095
  13. George Westin, MDStockton, CA 952041154376200
  14. Jaclyn Wey, MDFremont, CA 945381174611917
  15. William Whang, MDModesto, CA 953551790734192
  16. Beth Wheeler, M.D.San Francisco, CA 941091447442231
  17. Mikel Whiting, MDFullerton, CA 928351275576795
  18. Patrick Whitlock, MDPHDWest Hollywood, CA 900481669655650
  19. Amy Wickman, MDSanta Barbara, CA 931011659532505
  20. John Wiemann, MDHollister, CA 950231730228768
  21. Harvey Wieseltier, M.D.San Diego, CA 921031649342726
  22. Anthony Wiggins, MDSan Rafael, CA 949031699339622
  23. Jeffrey Wilde, M.D.La Jolla, CA 920371518250489
  24. Peter Wile, M.D.San Diego, CA 921031639130669
  25. Charles Wilhite, MDChico, CA 959281629082136
  26. Kip Wilkins, M.D.Modesto, CA 953561235348228
  27. Amy Williams, M.D.Long Beach, CA 908041871881458
  28. Benjamin Williams, M.D.Auburn, CA 956021861509689
  29. Carly Williams, MDPasadena, CA 911061609321751
  30. Don Williams, M.D.Salinas, CA 939071073537536
  31. Mark Williams, MDFresno, CA 937201295760601
  32. Nadine Williams, MDLoma Linda, CA 923541992971840
  33. Ryan WilliamsMoreno Valley, CA 925551912723024
  34. Shane Williams, MDLoma Linda, CA 923541972690279
  35. Denise Williamson, M.D.Los Angeles, CA 900571205959913
  36. Lenita Williamson, MDModesto, CA 953551245271253
  37. Tyler Williamson, M.D.Mammoth Lakes, CA 935461225561939
  38. Christopher Wills, MDOrange, CA 928681356322721
  39. Lynn Wilson, M.D.Whittier, CA 906021487709531
  40. Roger Wilson, MDOrange, CA 928681710931076
  41. Timothy Wimmer, M.D.Eureka, CA 955031811955735
  42. William Winternitz, MDPoway, CA 920641083676639
  43. Philip Wirganowicz, MDOakland, CA 946111972681773
  44. Craig Wiseman, M.D.Walnut Creek, CA 945981558386524
  45. Gary Wisner, M.D.Lodi, CA 952421528175841
  46. Donald Wiss, M.D.Los Angeles, CA 900481962420158
  47. John Witczak, DOMission Viejo, CA 926911811913825
  48. Eugene Wolf, M. D.San Francisco, CA 941151386683621
  49. John Woll, MDWalnut Creek, CA 945961508944687
  50. Fook Wong, M.D.San Jose, CA 951161528120904

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.