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 8 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. John Bokelman, M.D.San Francisco, CA 941151689655730
  2. Scott Boles, MDSan Diego, CA 921231356317747
  3. Kimberly Bolivar, M.D.Duarte, CA 910101942654892
  4. Deborah Bolton, NPLos Angeles, CA 900951033166392
  5. Denis Bolton, D.O.Los Alamitos, CA 907201952493876
  6. George Bolton, M.D.Sacramento, CA 958161568469708
  7. Michelle Bondero, MDOrange, CA 928681013598705
  8. Frank Bonelli, MDBeverly Hills, CA 902111861461915
  9. Roy Bonk, M.D.Sacramento, CA 958161316993249
  10. Michael Booker, M.D.San Diego, CA 921031669890588
  11. Anita Boorman, DOFountain Valley, CA 927081720083447
  12. Scott Booth, M.D.Santa Rosa, CA 954051841237666
  13. Dennis Boparai, MDWhittier, CA 906021871263145
  14. Bryson Borg, MDFairfield, CA 945331255394227
  15. Isaac Bornstein, M.D.Bakersfield, CA 933091225053101
  16. Harriet Borofsky, M.D.San Mateo, CA 944011033162912
  17. Maya Borso, M.DSan Diego, CA 921221548473507
  18. Richard Borst, M.D.Beverly Hills, CA 902111023251626
  19. Thangavijayan Bosemani, MDOrange, CA 928681205115680
  20. Gabrielle Bosley, M.D.Los Angeles, CA 900561568567741
  21. Donald Boss, M.D.Rolling Hills Estates, CA 902741629075247
  22. Neal Bost, M.D.San Francisco, CA 941431598101578
  23. Gilbert Boswell, M.D.San Diego, CA 921031730150392
  24. William Boswell, M.D.Duarte, CA 910101548209612
  25. Brendan Bottari, M.D.Santa Rosa, CA 954051174611107
  26. Ronald Boucher, M.D.San Diego, CA 921341538139035
  27. Troy BouitVisalia, CA 932771871514703
  28. Douglas Bourgon, M.D.San Francisco, CA 941171730138876
  29. Kelsey Bourm, MDSan Diego, CA 921031942646443
  30. Robert Boutin, MDStanford, CA 943051922088236
  31. Cecil Bowen, M.D.Blythe, CA 922251154482396
  32. David Bowen, MDStockton, CA 952101255419149
  33. Bruce Bower, MDSan Diego, CA 921231316911084
  34. Michael Bowers, M.D.Visalia, CA 932771003830985
  35. Clay Bowland, M.D.San Diego, CA 921011114936424
  36. Jessica BowmanVallejo, CA 945921396518361
  37. Sean Bowman, M.D.Pasadena, CA 911051750732376
  38. Alexander BoyarkoLos Angeles, CA 900251003497710
  39. Wayne Boyd, MDSan Bernardino, CA 924041871591727
  40. Mari Bozoghlanian, MDDuarte, CA 910101902197254
  41. Daniel Bradley, MDLos Angeles, CA 900951457700767
  42. Thomas Brahler, M.D.San Francisco, CA 941151508000571
  43. Sevil Brahme, MDSan Diego, CA 921231174597231
  44. Jasmine Branchcomb, M.D.Modesto, CA 953551841617115
  45. Michael Brand, M.D.Anaheim, CA 928071659317667
  46. Scott Brandman, M.D.Los Gatos, CA 950321770765729
  47. Frederick Brandon, DOChico, CA 959281235118613
  48. Thomas Brannigan, MDLa Mesa, CA 919421598710030
  49. James Branscom, M.D.Walnut Creek, CA 945981558304451
  50. Michael Brant-Zawadzki, MDNewport Beach, CA 926631821042532

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.