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 88 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. Yen-Ying Wu, M.DLoma Linda, CA 923541841554524
  2. Kristen Wulff, M.D.Salinas, CA 939011164486767
  3. Alvin Wyatt, MDLa Jolla, CA 920371528313624
  4. Rhonda Wyatt, M.D.Redding, CA 960011720004146
  5. Nathaniel Wycliffe, M.D.Loma Linda, CA 923541972536316
  6. Ryan WycliffeOrange, CA 928681861925067
  7. Eva Xia, M.D.Los Angeles, CA 900951447609524
  8. Juliana Xie, M.D.Manteca, CA 953371518408723
  9. Jeffrey Xing, MD, PHDStanford, CA 943051023758018
  10. Alan Xu, M.D.San Francisco, CA 941341497087118
  11. Kali Xu, MDSan Francisco, CA 941431104386341
  12. Yingding Xu, M.D.Stanford, CA 943051972846251
  13. Robert Yacullo, MDSan Diego, CA 921231225002355
  14. Omar YaghiSan Diego, CA 921031568221943
  15. Nazanin Yaghmai, MDLos Angeles, CA 900661629014329
  16. Arman Yaghoubian, M.D.Los Angeles, CA 900331568788859
  17. Yusuke Yagi, MDSan Francisco, CA 941431659762326
  18. Margaret Yago, M.D.Newport Beach, CA 926601174680664
  19. Alvin Yamamoto, M.D.Sacramento, CA 958251780616318
  20. Shota Yamamoto, MDSan Diego, CA 921281609165356
  21. Mary Yamashita, MDLos Angeles, CA 900331790768299
  22. Howard Yan, MDStanford, CA 943051275093239
  23. Jenny YanSan Diego, CA 921231356886154
  24. Kay Yan, M.D.Signal Hill, CA 907551417905118
  25. Pamela Yan, MDStanford, CA 943051508443755
  26. Chieh-Jen Yang, MD.,Alhambra, CA 918011982646022
  27. Lily Yang, MDMission Hills, CA 913451144563453
  28. Peter Yang, M.D.La Mesa, CA 919421679529564
  29. Phyllis Yang, M.D.Stanford, CA 943051992843916
  30. Thomas Yang, MDStanford, CA 943051285839654
  31. Dorcas Yao, M.D.Palo Alto, CA 943041063433472
  32. Felix Yap, M.D.Los Angeles, CA 900331376885624
  33. John Yasmer, D.O.Claremont, CA 917111295934727
  34. Eric Yasumoto, M.D.Lodi, CA 952401700914116
  35. Christopher Yau, MDSan Diego, CA 921031134547672
  36. Bruce Yawitz, M.D.Santa Monica, CA 904031588619928
  37. Ashley Yearwood, MDLos Angeles, CA 900951083389639
  38. Janis Yee, MDLos Angeles, CA 900951215457148
  39. Judy Yee, M.D.San Francisco, CA 941431295767093
  40. Sakuntala Yegnashankaran, MDHayward, CA 945451669550414
  41. Benjamin Yeh, M.D.San Francisco, CA 941431033150297
  42. Cary Yeh, M.D.Monterey, CA 939401356354641
  43. Mark Yeh, MEDICAL DOCTORPasadena, CA 911051558351379
  44. Melinda Yeh, M.D.San Francisco, CA 941151578848636
  45. Adam Yen, MDSan Jose, CA 951281528562501
  46. Andrew Yen, M.D.San Diego, CA 921031942499116
  47. Philip Yen, M.D.Sacramento, CA 958151023284809
  48. Norman Yeung, MDSacramento, CA 958251144308826
  49. Alex Yi, MDLoma Linda, CA 923571386830404
  50. Christian Yi, MDBaldwin Park, CA 917061720018625

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.