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 15 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. Lucy Chow, M.D.Los Angeles, CA 900951538402870
  2. Pi-Lieh Chow, M.D.West Covina, CA 917901245275288
  3. Ross Christensen, M.D.La Jolla, CA 920371063464626
  4. Michael ChristieCovina, CA 917231447813134
  5. Royce Chrys, MDWalnut Creek, CA 945981609802131
  6. George Chu, MDWalnut Creek, CA 945981952340465
  7. Jason ChuSan Francisco, CA 941431831504158
  8. Lisa Chu, M.D.Palo Alto, CA 943011134448137
  9. Pauline Chu, M.D.San Diego, CA 921611568408755
  10. William Chu, M.D.Baldwin Park, CA 917061124018551
  11. Youngmin ChuLa Jolla, CA 920371689100778
  12. Nathaniel Chuang, MDSan Diego, CA 921231497723969
  13. Peter Chuang, MDVallejo, CA 945891861565905
  14. Vadim Chudnovsky, M.D.Orange, CA 928691922049394
  15. Anjeza Chukus, M.DPalo Alto, CA 943041891063996
  16. Alex Chung, MDLos Angeles, CA 900951982068284
  17. Christine Chung, MDSan Diego, CA 921031528033560
  18. Chul Chung, M.D.Walnut Creek, CA 945981033552773
  19. Jonathan ChungSan Diego, CA 921031508878752
  20. Maggie ChungSan Francisco, CA 941101992246185
  21. Taylor Chung, M.D.Oakland, CA 946091235120387
  22. Philip Chyu, M.D.Oakland, CA 946091588656847
  23. Kurt CicilioniLoma Linda, CA 923541265068258
  24. Robert Cimini, M.D.Redlands, CA 923731043244494
  25. Jonathan CirielloSan Diego, CA 921031720540743
  26. Victoria Clague, MDSan Rafael, CA 949031093887812
  27. Alysse Clark, MDFresno, CA 937011619472941
  28. Ellen Clark, DOOakland, CA 946111174083596
  29. Leroy Clark, M.D.Tarzana, CA 913561982643508
  30. Ramona Clark, MDSanta Barbara, CA 931051750334173
  31. Robert Clark, M.D.Selma, CA 936621265480602
  32. Yasmin Clark, M.D.Lafayette, CA 945491952571580
  33. Harry Claybaugh, MDLos Angeles, CA 900251316965635
  34. Laurie Cleland, MDBurbank, CA 915061881698819
  35. Thomas CliffordLos Angeles, CA 900331225579436
  36. Terry Coates, M.D.Sacramento, CA 958171336110725
  37. Steven Cobb, M.D.Rancho Cucamonga, CA 917301770542110
  38. Jeffrey Cochiolo, MDFresno, CA 937201295760734
  39. Sachiko Cochran, MDLos Angeles, CA 900951699705319
  40. Michael Cody, M.D.Fresno, CA 937201104056779
  41. Adam Coen, M.D.San Bernardino, CA 924041083943260
  42. Adam Cohen, D.O.Orange, CA 928681992083133
  43. David Cohen, M.D.San Diego, CA 921281881993061
  44. Donald Cohen, MDLos Angeles, CA 900481396872735
  45. Howard Cohen, M.D.Walnut Creek, CA 945981508893223
  46. Lawrence Cohen, M.D.West Hollywood, CA 900481619929239
  47. Loren Cohen, M.D.Buena Park, CA 906211346210101
  48. Martin Cohen, M.D.West Hills, CA 913071619929114
  49. Pierre-Alain Cohen, MDSan Francisco, CA 941101508810557
  50. Robert Cohen, M.D.S Pasadena, CA 910301851314363

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.