NPPES file of Aug 9, 2026

Orthopaedic Trauma Physician in California

114 NPPES records list orthopaedic trauma physician with a practice address in California, 0.3 per 100,000 residents, the 18th highest rate of 51. Sacramento and Los Angeles have the most; each record links to the provider's NPI and the California license search. Page 2 of 3.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207XX0801X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Sacramento has the most, 15

  1. Sacramento15
  2. Los Angeles12
  3. San Diego8
  4. Carmichael7
  5. San Francisco7

Orthopaedic Trauma Physician records in California

  1. Eric Johnson, M.D.Los Angeles, CA 900951225135999
  2. Farzin Kabaei, MDLos Angeles, CA 900481255655072
  3. Jessica Kingsberg, M.D.Loma Linda, CA 923541891016598
  4. Brian Kistler, M.D.Santa Maria, CA 934551043473507
  5. Arthur Kreitenberg, M.D.Los Angeles, CA 900481952391112
  6. Michael Kuhne, MDChico, CA 959261942386040
  7. Simon Lavi, D.O.Downey, CA 902421124120092
  8. Ethan Lea, M.D.Carmichael, CA 956081760645444
  9. James Learned, M.D.Orange, CA 928681720240781
  10. Christopher Lee, MDLos Angeles, CA 900241942566443
  11. Mark Lee, MDSacramento, CA 958171528059698
  12. Virginia Lieu, MDCastro Valley, CA 945461063945962
  13. Philip Lim, MDOrange, CA 928681255771747
  14. Zachary Lim, MB, BCH, BAOSan Francisco, CA 941101275147233
  15. Eric Lindvall, D.O.Clovis, CA 936111124025325
  16. David Lowenberg, MDSan Francisco, CA 941151992746150
  17. Zachary Mallon, MDVacaville, CA 956881932360427
  18. Meir Marmor, M.D.Chico, CA 959261033348461
  19. Jacob Matz, MDSan Francisco, CA 941101740835131
  20. Ryan Mayer, M.D.Pomona, CA 917671255793527
  21. H. Moehring, MDSacramento, CA 958171609866979
  22. Fariborz Naeni, MDFresno, CA 937211427168806
  23. Abhinav NalluriOakland, CA 946111801254537
  24. Rafael Neiman, M.D.Carmichael, CA 956081194711879
  25. Edmond O'Donnell, MD PHDSacramento, CA 958171962961961
  26. Aaron Osborne, DORedding, CA 960011265460687
  27. Joseph Patterson, M.D.Los Angeles, CA 900331760892798
  28. Danielle Peterson, MDSacramento, CA 958171225598485
  29. Gary Phipps, M.D.Mission Viejo, CA 926911144300385
  30. Rebecca Rajfer, MDLoma Linda, CA 923541568720811
  31. Motasem Refaat, M.D.Clovis, CA 936111780976902
  32. Matthew Robinson, D.O.Temecula, CA 925911275740102
  33. Augustine Saiz, M.D.Sacramento, CA 958171538540026
  34. Neil Sardesai, MDArcadia, CA 910071275876955
  35. Steven Schelkun, MDSan Diego, CA 921201609924679
  36. John Scolaro, MDOrange, CA 928681790983476
  37. Christina Seifert, MDNewport Beach, CA 926601558781237
  38. Michael Shapiro, MDEncino, CA 913161629178785
  39. Lorra Sharp, MDEscondido, CA 920291689689176
  40. David Shearer, MDSan Francisco, CA 941101073849345
  41. Lara ShefelbineSacramento, CA 958171851973168
  42. Lane Shepherd, M.D.Los Angeles, CA 900331861618084
  43. Alvin Shieh, MDEscondido, CA 920291316322100
  44. Myron Slobogean, MDOrange, CA 928681871872986
  45. Todd Swenning, MDPalm Springs, CA 922621386627842
  46. Daniel Switlick, M.D.Roseville, CA 956611548378466
  47. Megan Terle, M.D.Sacramento, CA 958171730534488
  48. Loren Tholcke, DOTemecula, CA 925911588191944
  49. Robert Tonks, M.D.La Jolla, CA 920371659395671
  50. Paul Toogood, M.D.San Francisco, CA 941101033444120

Source: CMS NPPES, primary taxonomy 207XX0801X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 18 of 51 per resident

  1. Colorado0.3
  2. Mississippi0.3
  3. Ohio0.3
  4. California0.3
  5. Florida0.3
  6. Georgia0.3
  7. 50 states and D.C.0.3

Source: CMS NPPES, primary taxonomy 207XX0801X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

89.5% of these records appear in a Medicare file, against 92.5% 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. California89.5%
  2. United States92.5%

Orthopaedic Trauma Physician records in California, measured

  • In a Medicare file102 of 114 · 89.5% here, 92.5% nationally
  • In the CMS Doctors and Clinicians file95 · 83.3% here, 86.3% nationally
  • Not updated in five years or more47 · 41.2% here, 41.9% nationally
  • Median graduation year2009 · the 95 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207XX0801X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

114 NPPES records list orthopaedic trauma physician (207XX0801X) as their primary taxonomy with a practice address in California: 0.3 per 100,000 residents against 0.3 nationally (50 states and D.C.). Sacramento has 15 of them (13%).

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. Texas76
  2. Florida66
  3. New York51
  4. Washington36

States with a similar rate per 100,000

  1. Georgia0.3
  2. Ohio0.3
  3. Louisiana0.3
  4. Oregon0.3

The largest states

  1. Texas76
  2. Florida66
  3. New York51
  4. Washington36
  5. Ohio35

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.