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 12 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. Cato ChanOrange, CA 928681477084648
  2. Danielle Chan, MDRoseville, CA 956611588895163
  3. Donald Chan, MDRedwood City, CA 940631235768268
  4. Eva Chan, M.D.Sacramento, CA 958161134380280
  5. Frandics Chan, MDStanford, CA 943051780768101
  6. Joseph Chan, M.D.Walnut Creek, CA 945981043256720
  7. Karence Chan, M.D.Newport Beach, CA 926601194821488
  8. Krammie Chan, MDOakland, CA 946111497834105
  9. Michael ChanLos Angeles, CA 900951437737491
  10. Michael Chan, M.D.San Diego, CA 921031285929067
  11. Ronald Chan, M.D.Walnut Creek, CA 945981154367993
  12. Roxanne Chan, MDSanta Monica, CA 904031851407787
  13. Sarah Chan, M.D.Sacramento, CA 958161437353125
  14. Sidney Chan, MDWalnut Creek, CA 945961427136522
  15. Stephen Chan, MDOakland, CA 946111073019899
  16. Stephen Chan, MDSacramento, CA 958251760833420
  17. Teresa Chan, MDFresno, CA 937201972619096
  18. Tiffany Chan, M.D.Los Angeles, CA 900951457796518
  19. Wesley Chan, MDSan Francisco, CA 941151538447883
  20. Jimmy Chanbonpin, M.D.San Marino, CA 911081699859520
  21. Michelle M Chandler, MDOrange, CA 928681700966892
  22. Aileen Chang, MDLos Angeles, CA 900951780117895
  23. Andrew Chang, M.D.Long Beach, CA 908221962761734
  24. Andrew Chang, MD MSBurlingame, CA 940101457970501
  25. Anthony Chang, MDSan Diego, CA 921261306050406
  26. Arthur Chang, M.D.Loma Linda, CA 923571003020637
  27. Crystal Chang, M.D.Novato, CA 949451518253012
  28. Ellen Chang, MDSan Francisco, CA 941101427450212
  29. Eric Chang, M.DSan Diego, CA 921611376756353
  30. Frank Chang, M.D.Fresno, CA 937201568556413
  31. Geraldine Chang, M.D.Northridge, CA 913251831486539
  32. Gloria Chang, MDSouth San Francisco, CA 940801326190547
  33. Jerry Chang, M.D.Rancho Mirage, CA 922701811948227
  34. Miles Chang, M.D.Newport Beach, CA 926631952341539
  35. Patrick Chang, MDLos Angeles, CA 900951457488348
  36. Randy ChangEl Segundo, CA 902451992294268
  37. Richard Chang, M.D.Santa Monica, CA 904021154384311
  38. Ruby Chang, M.D.Walnut Creek, CA 945981164459335
  39. Stephanie Chang, MDStanford, CA 943051336427590
  40. Weiling Chang, M.D.La Mesa, CA 919421659326460
  41. Yoon Chang, MDUpland, CA 917861487693958
  42. Yoshi Chang, M.D.Fresno, CA 937201538248257
  43. Stephanie ChannualLos Angeles, CA 900951770875569
  44. Premwadee Chantra, MDLos Angeles, CA 900951295766384
  45. Richard Chao, M.D.Alhambra, CA 918011134150071
  46. Tzyy Shyang Chao, M.D.Northridge, CA 913251801213806
  47. Maureen Chapman, MDFremont, CA 945381336566702
  48. Abbas Charlie, DOPalo Alto, CA 943041861989683
  49. Cam Chau, MDSacramento, CA 958161285860585
  50. Vinika Chaudhari, MDLos Angeles, CA 900951164610994

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.