NPPES file of Aug 9, 2026

Diagnostic Radiology Physician in California

4,500 NPPES records list diagnostic radiology physician with a practice address in California, 12 per 100,000 residents, the 31st 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 86 of 90.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2085R0202X · 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, 594

  1. Los Angeles594
  2. San Diego373
  3. San Francisco336
  4. Stanford235
  5. Sacramento226

Diagnostic Radiology Physician records in California

  1. Eric White, M.D.Los Angeles, CA 900331003954421
  2. Frederick White, D.O.Hemet, CA 925431003851130
  3. Winston Whitney, M.D.Newport Beach, CA 926631396789905
  4. Claire Widule, MDTravis Afb, CA 945351932590957
  5. Martha Wiedman, M.D.Bakersfield, CA 933011245347467
  6. Lisa Wieler, M.D.San Luis Obispo, CA 934011316011083
  7. Martin Wieler, M.D.Santa Ana, CA 927071689610552
  8. Wojciech Wierzbowski, MDModesto, CA 953551598794448
  9. Jason Wiesner, M.D.Sacramento, CA 958161386679975
  10. Chad Wilcox, MDLos Angeles, CA 900951932441151
  11. Barry Wilen, M.D.Northridge, CA 913251235152620
  12. Ulrich Willi, M.D.Stanford, CA 943051386657203
  13. Mark Williams, MDBakersfield, CA 933011235284225
  14. Michael Williams, M.D.Santa Rosa, CA 954051609956465
  15. Percival Williams, RTAptos, CA 950031780183210
  16. Richard Williams, MDSanta Cruz, CA 950651952315350
  17. Symphorosa Williams, M.D.La Jolla, CA 920371548233349
  18. Joseph Willis, M.D.Yorba Linda, CA 928871710947841
  19. Marc Willis, MDStanford, CA 943051255494969
  20. Ronald Willy, M.D.Oceanside, CA 920551306802764
  21. Craig Wilsen, MDStanford, CA 943051205364148
  22. Alexander Wilson, DOTravis Afb, CA 945351144808866
  23. Anna Wilson, D.O.Grass Valley, CA 959451447561535
  24. James Wilson, MDSonora, CA 953701366427866
  25. John Wilson, M.D.Burlingame, CA 940101871537308
  26. Mark Wilson, M.D.San Francisco, CA 941101184666091
  27. Sheila Wilson, MDPalm Desert, CA 922601699965707
  28. Susan Win, MDLos Angeles, CA 900951215498720
  29. Zachary Winchester, MDLos Angeles, CA 900951467089771
  30. Vivian Wing, M.D.Walnut Creek, CA 945981780620088
  31. Donna Winingham, MDSanta Barbara, CA 931051003882275
  32. Laura Winkle, M.D.Ukiah, CA 954821568506061
  33. Bryan Winkler, M.D.Beverly Hills, CA 902111730192063
  34. Gerald Winkler, M.D.Los Angeles, CA 900491861648156
  35. John Winn, M.D.Carmichael, CA 956081871795500
  36. Justin Winn, MDCarmichael, CA 956081649532557
  37. Mark WinterEl Segundo, CA 902451417303405
  38. Kara WintersLoma Linda, CA 923571952231524
  39. Robert Wirth, M.D.Novato, CA 949451396786547
  40. Robert Wirtz, M.D.Monterey, CA 939401912014796
  41. Dorota Wisner, M.D., PH.D.San Francisco, CA 941431518162270
  42. Brian Wistow, M.D.Modesto, CA 953551437109709
  43. Cynthia Withers, M.D.Santa Barbara, CA 931051144229691
  44. Michael Witkosky, M.D.Sacramento, CA 958231134366818
  45. Dylan Witt, M.D.Sacramento, CA 958251316945058
  46. Kathryn Witztum, M.D.Carmichael, CA 956081487683603
  47. David Wixson, M.D.Walnut Creek, CA 945981508893504
  48. Christopher Wladyka, M.D.Sacramento, CA 958251043452659
  49. David WohlmuthDowney, CA 902411427016625
  50. Luke Wojdyla, DOSan Diego, CA 921031174085070

Source: CMS NPPES, primary taxonomy 2085R0202X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 31 of 51 per resident

  1. New Jersey12
  2. Arizona12
  3. Hawaii12
  4. California12
  5. South Dakota12
  6. Indiana11
  7. 50 states and D.C.13

Source: CMS NPPES, primary taxonomy 2085R0202X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

73.7% of these records appear in a Medicare file, against 73.1% 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. California73.7%
  2. United States73.1%

Diagnostic Radiology Physician records in California, measured

  • In a Medicare file3,317 of 4,500 · 73.7% here, 73.1% nationally
  • In the CMS Doctors and Clinicians file3,130 · 69.6% here, 68.5% nationally
  • Not updated in five years or more2,695 · 59.9% here, 56.9% nationally
  • Median graduation year2004 · the 3,130 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2085R0202X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

4,500 NPPES records list diagnostic radiology physician (2085R0202X) as their primary taxonomy with a practice address in California: 12 per 100,000 residents against 13 nationally (50 states and D.C.). Los Angeles has 594 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. New York3,146
  2. Texas3,124
  3. Florida2,761
  4. Pennsylvania2,199

States with a similar rate per 100,000

  1. Hawaii11.6
  2. South Dakota11.5
  3. Arizona11.7
  4. Indiana11.4

The largest states

  1. New York3,146
  2. Texas3,124
  3. Florida2,761
  4. Pennsylvania2,199
  5. Illinois1,874

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.