NPPES file of Aug 9, 2026

Radiation Oncology Physician in Oregon

115 NPPES records list radiation oncology physician with a practice address in Oregon, 2.7 per 100,000 residents, the 7th highest rate of 51. Portland and Corvallis have the most; each record links to the provider's NPI and the Oregon license search. Page 2 of 3.

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).

Portland has the most, 54

  1. Portland54
  2. Corvallis9
  3. Bend8
  4. Eugene7
  5. Salem7

Radiation Oncology Physician records in Oregon

  1. Kathleen Jaffe, M.D., MPHPortland, OR 972271386031649
  2. Carl Jenson, MDCoos Bay, OR 974201659317097
  3. Thomas Johnson, M.D.Portland, OR 972271083601835
  4. Jenna Kahn, M.D.Portland, OR 972391366855793
  5. Matthew Kang, M.D.Salem, OR 973011043224157
  6. David Kantorowitz, MDCorvallis, OR 973301316959646
  7. Aasheeshraj Kanwar, M.D.McMinnville, OR 971281861925778
  8. Andrew Kee, M.D.Portland, OR 972101043299217
  9. Cymon Kersch, MDPortland, OR 972131023684735
  10. Case Ketting, MDPendleton, OR 978011033193297
  11. Hans Kim, MDKlamath Falls, OR 976011750885687
  12. Brian Lee, M.D.Portland, OR 972251750503132
  13. Haidy Lee, MDEugene, OR 974011922211424
  14. Misa Lee, M.D.Portland, OR 972101356338149
  15. Jeannie Louie, MDPortland, OR 972251730171117
  16. Michael Marietta, M.D.Roseburg, OR 974711669823985
  17. Tasha McDonald, MDSalem, OR 973011871617126
  18. Patrice McGowan, M.D.Corvallis, OR 973301841209376
  19. Gordon Metz, M.D.Medford, OR 975041649239435
  20. Timur Mitin, M.D., PH.D.Hillsboro, OR 971231679745822
  21. Randy Moore, D.O.Roseburg, OR 974711508813817
  22. Eric Mullen, M.D.Medford, OR 975041164481321
  23. Nima Nabavizadeh, MDPortland, OR 972391538453741
  24. Jaishanker Nautiyal, M.D.Portland, OR 972271043208820
  25. Eric Nesbit, M.D.Portland, OR 972131396134078
  26. Kenneth Nitta, M.D.Portland, OR 972161942362413
  27. Russ Omizo, M.D.Bend, OR 977011770571556
  28. Kathryn Panwala, M.D.Gresham, OR 970301972591618
  29. Gregory Patton, M.D.Portland, OR 972271275536948
  30. Carl Post, MDPortland, OR 972391881190262
  31. Akanksha Rajeurs, M.D.Portland, OR 972271194110247
  32. Nancy Reyes-Molyneux, M.D.Salem, OR 973011326062829
  33. Theodore Robnett, M.D.Grants Pass, OR 975271952307522
  34. Sahar Rosenbaum, MDPortland, OR 972391477537512
  35. Aaron Sabolch, MDPortland, OR 972271033402995
  36. Jere Sandefur, M.D.Medford, OR 975041790744928
  37. Howard Sandler, MDPortland, OR 972391508959800
  38. Mark Schray, M.D.Portland, OR 972101063400752
  39. John Schuler, M.D.Tigard, OR 972231134485766
  40. Steven Seung, MD, PHDPortland, OR 972131396738431
  41. Matthew Solhjem, MDPortland, OR 972131356334403
  42. Amar Srivastava, M.D.Portland, OR 972131235549031
  43. Thomas Sroka, MDEugene, OR 974011700058021
  44. Keith Stelzer, M.D., PH.D.The Dalles, OR 970581881682573
  45. Kenneth Stevens, M.D.Portland, OR 972391033303847
  46. Whitney SumnerBend, OR 977011639602113
  47. Margaret Thompson, M.D.Amity, OR 971011982702221
  48. Reid Thompson, MD PHDPortland, OR 972391659662377
  49. Matthew Thurman, M.D.Corvallis, OR 973301316385974
  50. Diane Tsai, M.D.Portland, OR 972271730266966

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

Oregon ranks 7 of 51 per resident

  1. North Dakota2.9
  2. New Hampshire2.9
  3. Minnesota2.8
  4. Oregon2.7
  5. Rhode Island2.6
  6. Wisconsin2.6
  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.

77.4% 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. Oregon77.4%
  2. United States82.3%

Radiation Oncology Physician records in Oregon, measured

  • In a Medicare file89 of 115 · 77.4% here, 82.3% nationally
  • In the CMS Doctors and Clinicians file85 · 73.9% here, 74.0% nationally
  • Not updated in five years or more58 · 50.4% here, 54.6% nationally
  • Median graduation year2006 · the 85 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

115 NPPES records list radiation oncology physician (2085R0001X) as their primary taxonomy with a practice address in Oregon: 2.7 per 100,000 residents against 2.1 nationally (50 states and D.C.). Portland has 54 of them (47%).

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. Colorado111
  2. Maryland124
  3. Tennessee132
  4. Indiana135

States with a similar rate per 100,000

  1. Rhode Island2.6
  2. Minnesota2.8
  3. Wisconsin2.6
  4. New Hampshire2.9

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.