NPPES file of Aug 9, 2026

Radiation Oncology Physician in Washington

198 NPPES records list radiation oncology physician with a practice address in Washington, 2.5 per 100,000 residents, the 10th highest rate of 51. Seattle and Tacoma have the most; each record links to the provider's NPI and the Washington license search. Page 1 of 4.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2085R0001X · method

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

Seattle has the most, 97

  1. Seattle97
  2. Tacoma10
  3. Kennewick8
  4. Spokane Valley8
  5. Vancouver8

Radiation Oncology Physician records in Washington

  1. Bryan Ager, MDSpokane, WA 992181306231907
  2. Ahsen Ahmed, MDSeattle, WA 981951417510900
  3. Saif Aljabab, MBBSSeattle, WA 981951720512296
  4. Gregory Allen, M.D., PHDLacey, WA 985031508817404
  5. Smith Apisarnthanarax, MDSeattle, WA 981331184839722
  6. Andrea Arnett, M.D., PH.D.Bellingham, WA 982251316280431
  7. Andrew Barbour, M.D., PHDKirkland, WA 980341720605306
  8. Todd Barnett, M.D.Seattle, WA 981041629091483
  9. Kenneth Bergman, MDGig Harbor, WA 983321669443032
  10. Herbert Berry, M.D.Seattle, WA 981021720356090
  11. Clare Bertucio, MDPort Angeles, WA 983621942278007
  12. Sudershan Bhatia, MDSeattle, WA 981951780656785
  13. Nathan Bittner, MDPuyallup, WA 983721609989714
  14. John Blasko, M.D.Seattle, WA 981041194748715
  15. Kathryn Blau, M.D., M.S.Seattle, WA 981951255862520
  16. James Brashears, MDSeattle, WA 981221720177819
  17. Alexandra Brennan, MDJoint Base Lewis McChord, WA 984311578092508
  18. Aaron Brown, M.D.Everett, WA 982011720401946
  19. Michael Burdick, MDSeattle, WA 981121992974083
  20. Alvin Cabrera, M.D.Seattle, WA 981121043407414
  21. Christopher Canning, M.D.Seattle, WA 981121558318998
  22. Thomas Carlson, MDWenatchee, WA 988011073540704
  23. Christine Cha, MDBellingham, WA 982251053313817
  24. Jonathan Chen, M.D., PH.D.Seattle, WA 981091023429388
  25. Michael Cheung, M.D.Seattle, WA 981951982917720
  26. Chan-Kyung ChoSeattle, WA 981951902459472
  27. Juno Choe, M.D., PH.D.Kennewick, WA 993361700099439
  28. Sean Cleary, MDYakima, WA 989021164501342
  29. Michael Connor, MDLacey, WA 985031285165142
  30. David Davenport, MDSpokane Valley, WA 992161558353052
  31. Cheryl Davison, MDYakima, WA 989021396824595
  32. Gurleen Dhami, M.D.Vancouver, WA 986641235422023
  33. Tru-Khang Dinh, M.D.Seattle, WA 981951639523863
  34. Robert Douglas, M.D.Renton, WA 980551538182399
  35. Maryam Ebadi, MDSeattle, WA 981951063083327
  36. Delnora Erickson, M.D.Tacoma, WA 984311194954503
  37. Ralph Ermoian, MDSeattle, WA 981951588795140
  38. Steve Eulau, M.D.Seattle, WA 981041346263183
  39. Robert Fain, MDWenatchee, WA 988011225461148
  40. Li-Ming Fang, MDSeattle, WA 981951659435436
  41. Susan Feeney, MDSequim, WA 983821750321469
  42. Shannon Fogh, M.D.Seattle, WA 981091265614838
  43. Michael Folkert, M.D., PH.D.Seattle, WA 981951033346770
  44. Richard Foxlee, MDPoulsbo, WA 983701063480358
  45. Ian Gallaher, MDWalla Walla, WA 993621801152160
  46. John Gallucci, MDAuburn, WA 980011265456180
  47. Wendy Gao, MDTacoma, WA 984051477852218
  48. Richard Giever, MDKennewick, WA 993361912981135
  49. Erin Gillespie, MDSeattle, WA 981951699031740
  50. Peter Goff, MDSeattle, WA 981091053842054

Source: CMS NPPES, primary taxonomy 2085R0001X: records by practice city and the list of records, file of Aug 9, 2026.

Washington ranks 10 of 51 per resident

  1. Oregon2.7
  2. Rhode Island2.6
  3. Wisconsin2.6
  4. Washington2.5
  5. Ohio2.5
  6. South Dakota2.4
  7. 50 states and D.C.2.1

Source: CMS NPPES, primary taxonomy 2085R0001X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

80.3% of these records appear in a Medicare file, against 82.3% 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. Washington80.3%
  2. United States82.3%

Radiation Oncology Physician records in Washington, measured

  • In a Medicare file159 of 198 · 80.3% here, 82.3% nationally
  • In the CMS Doctors and Clinicians file141 · 71.2% here, 74.0% nationally
  • Not updated in five years or more115 · 58.1% here, 54.6% nationally
  • Median graduation year2006 · the 141 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2085R0001X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

198 NPPES records list radiation oncology physician (2085R0001X) as their primary taxonomy with a practice address in Washington: 2.5 per 100,000 residents against 2.1 nationally (50 states and D.C.). Seattle has 97 of them (49%).

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. Georgia180
  2. North Carolina230
  3. Minnesota160
  4. Michigan239

States with a similar rate per 100,000

  1. Ohio2.5
  2. Wisconsin2.6
  3. Rhode Island2.6
  4. South Dakota2.4

The largest states

  1. California735
  2. Florida520
  3. New York449
  4. Texas449
  5. Pennsylvania383

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.