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 7 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. Dwayne Carney, MDSanta Monica, CA 904041609436823
  2. Joseph Carney, M.D.San Diego, CA 921341194863126
  3. Jonathan Carr, MDSan Francisco, CA 941141316179328
  4. Jeffrey Carter, M.D.Monterey, CA 939401992765754
  5. Paul CarterLos Angeles, CA 900331982788485
  6. Alden Casanave, MDSanta Clara, CA 950511942386875
  7. Kevin Casey, M.D.La Jolla, CA 920371578515227
  8. Robert Cash, M.D.Modesto, CA 953551427061092
  9. Deborah Castaneda, M.D.Van Nuys, CA 914051508099318
  10. Paul Castello, M.D.Santa Maria, CA 934551669434510
  11. David Castro, MDChico, CA 959281891764627
  12. Anthony Catanzano, M.D.San Diego, CA 921231740677640
  13. Alejandro Cazzulino, MDStanford, CA 943051659908051
  14. Hugo Centomo, M.D PH.D.Los Angeles, CA 900331942741608
  15. Vahan Cepkinian, M.D.Glendale, CA 912041134214091
  16. Michael Cerruti, MDSacramento, CA 958251508944240
  17. Lucille ChailleLos Angeles, CA 900331003024407
  18. Christopher Chalian, M.D.Pomona, CA 917671235183484
  19. Roman Cham, MDLa Mesa, CA 919421841252988
  20. Henry Chambers, M.D.San Diego, CA 921231205907060
  21. Kenneth Chambers, M.D., M.P.HFountain Valley, CA 927081023347846
  22. Richard Chambers, M.D.Downey, CA 902411487762944
  23. Albert Chan, M.D.Sacramento, CA 958161306921705
  24. Danny Chan, M.D.San Leandro, CA 945771295954782
  25. Jason ChanRedlands, CA 923741891229050
  26. Raymond Chan, DOMoreno Valley, CA 925551780916734
  27. Robert Chandler, M.D.Los Angeles, CA 900451255332854
  28. Rama Chandran, MDTorrance, CA 905031225049356
  29. Shaun Chandran, M.D.Torrance, CA 905031023205077
  30. P Chandrasekaran, MBBS MD FACS FAAOSBakersfield, CA 933111437123601
  31. Charles Chang, M.D.San Diego, CA 921031285943589
  32. David Chang, M.D.Berkeley, CA 947071316918881
  33. Emory Chang, MDLong Beach, CA 908041962593962
  34. Jonathan Chang, M.DAlhambra, CA 918011104824556
  35. Justin Chang, M.D.Lompoc, CA 934361316301526
  36. Joanne Chao, MDStockton, CA 952101073691960
  37. Tom Chao, MDBakersfield, CA 933061710117163
  38. Ronald Chaplan, M.D.Monterey, CA 939401255403531
  39. Garrett Chapman, M.D.Redlands, CA 923731831457175
  40. Michael Chapman, MDSacramento, CA 958171073553103
  41. Mitra Chapman, M.D.Fremont, CA 945381326369521
  42. Michael Charles, MDClovis, CA 936111689096786
  43. Mark Charney, MDVallejo, CA 945891265510085
  44. Paul Charpentier, MDWillits, CA 954901740542380
  45. Robert Chase, MDRed Bluff, CA 960801912030560
  46. Amber Chatwin, M.D.Yuba City, CA 959911669582433
  47. Michael Chau, M.D.Los Angeles, CA 900451730534835
  48. George Chavez, MDSacramento, CA 958171619608064
  49. Brenda Chen, PA-CAlhambra, CA 918011740097815
  50. Gary Chen, M.D.Los Angeles, CA 900151831123934

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.