NPPES file of Aug 9, 2026

Diagnostic Neuroimaging (Radiology) Physician in California

49 NPPES records list diagnostic neuroimaging (radiology) physician with a practice address in California, 0.1 per 100,000 residents, the 3rd highest rate of 32. Stanford and Santa Monica have the most; each record links to the provider's NPI and the California license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2085D0003X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Stanford has the most, 28

  1. Stanford28
  2. Santa Monica5
  3. Orange3
  4. Los Angeles2
  5. San Leandro2

Diagnostic Neuroimaging (Radiology) Physician records in California

  1. Adina Achiriloaie, MDLoma Linda, CA 923541992983282
  2. Raag Airan, MDStanford, CA 943051912223017
  3. Farima AzamianLos Angeles, CA 900951184364663
  4. Ruchir Chaudhari, MDStanford, CA 943051558649152
  5. Andrew Chiu, MDStanford, CA 943051801213772
  6. Daniel Chow, MDOrange, CA 928681174838627
  7. Wilson Chwang, MD, PHDStanford, CA 943051174751879
  8. Johannes Decker, MDStanford, CA 943051558892075
  9. Seena Dehkharghani, MDStanford, CA 943051093989105
  10. Madhavi Duvvuri, MDStanford, CA 943051538604442
  11. Nancy Fischbein, M.D.Stanford, CA 943051427106053
  12. Bonnie Flannigan, MDSanta Monica, CA 904041700834496
  13. Bernard Gero, M.D.Santa Monica, CA 904041235187758
  14. Vineet Gorolay, MDSan Francisco, CA 941431811625544
  15. Lotfi Hacein-Bey, MDStanford, CA 943051730166604
  16. Syed Hashmi, MDStanford, CA 943051992060198
  17. Jeremy Heit, MD, PHDStanford, CA 943051730347360
  18. Imelda Ho, MDSouth San Francisco, CA 940801417167453
  19. Ronald Homer, MDLos Angeles, CA 900951316982614
  20. Michael IV, MDStanford, CA 943051851571681
  21. Abhi Jain, DOStanford, CA 943051225307580
  22. Dale Jamison, MDStanford, CA 943051912392887
  23. Brij Kapadia, M.D.San Leandro, CA 945771972787349
  24. Afshin Karimi, MDOrange, CA 928681952511214
  25. William Kelly, M.D.Palm Desert, CA 922601114952165
  26. Harold Keyserling, M.D.Sacramento, CA 958161023035995
  27. Shweta Kumar, MDStanford, CA 943051417488446
  28. Frank Kuo, MDStanford, CA 943051922418797
  29. Bryan Lanzman, MDStanford, CA 943051023323573
  30. Conway Lien, M.D.Stanford, CA 943051336276450
  31. Li-Chang Lien, MDOrange, CA 928681376734780
  32. Abdelkader Mahammedi, MDStanford, CA 943051194159095
  33. Frank Mangano, M.D.Murrieta, CA 925621265467252
  34. Tarik Massoud, MDStanford, CA 943051124458542
  35. Derek McAllister, DOSanta Monica, CA 904041861832230
  36. Lex Mitchell, MDStanford, CA 943051780786392
  37. Amanda Murphy, M.D.San Diego, CA 921611871794347
  38. James Murphy, M.D.Santa Monica, CA 904041790801355
  39. Ryan Murtagh, MDEl Segundo, CA 902451548396997
  40. Nancy Pham, M.D.Stanford, CA 943051154611432
  41. Kai-Yin See, MDSan Leandro, CA 945771003246869
  42. Kimberly Seifert, M.D.Stanford, CA 943051487041281
  43. Seyed Shahrokni, M.D.Santa Monica, CA 904041104877497
  44. Eric Tranvinh, M.D.Stanford, CA 943051346401148
  45. Austin Trinh, MDStanford, CA 943051194067256
  46. William Wortman, MDPasadena, CA 911031871684837
  47. Ghiam Yamin, M.D.Stanford, CA 943051619398104
  48. Gregory Zaharchuck, MDStanford, CA 943051376653675
  49. Michael Zeineh, MD, PHDStanford, CA 943051841488848

Source: CMS NPPES, primary taxonomy 2085D0003X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 3 of 32 per resident

  1. Vermont0.3
  2. District of Columbia0.1
  3. California0.1
  4. West Virginia0.1
  5. South Dakota0.1
  6. 50 states and D.C.0.0

Source: CMS NPPES, primary taxonomy 2085D0003X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

95.9% of these records appear in a Medicare file, against 80.7% 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. California95.9%
  2. United States80.7%

Diagnostic Neuroimaging (Radiology) Physician records in California, measured

  • In a Medicare file47 of 49 · 95.9% here, 80.7% nationally
  • In the CMS Doctors and Clinicians file46 · 93.9% here, 80.0% nationally
  • Not updated in five years or more8 · 16.3% here, 46.2% nationally
  • Median graduation year2006 · the 46 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2085D0003X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

49 NPPES records list diagnostic neuroimaging (radiology) physician (2085D0003X) as their primary taxonomy with a practice address in California: 0.1 per 100,000 residents against 0 nationally (50 states and D.C.). Stanford has 28 of them (57%).

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 York12

The largest states

  1. New York12
  2. Illinois9
  3. Florida8
  4. Pennsylvania8
  5. Arizona6

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.