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 3 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. Lucas Vitzthum, M.D.Bend, OR 977011487049938
  2. Fredrick Wagner, MDPortland, OR 972251609869635
  3. Michael Wahl, M.D.Bend, OR 977011710253893
  4. Joshua Walker, MD/PHDPortland, OR 972391962848655
  5. Samuel Wang, MD, PHDSalem, OR 973011851512941
  6. Alice Wang-Chesebro, M.D.Portland, OR 972131558532507
  7. Merideth Wendland, M.DEugene, OR 974011477502813
  8. Casey Williamson, M.D.Portland, OR 972391437683570
  9. Theodore Williamson, M.D.McMinnville, OR 971281437163532
  10. Gregory Willis, M.D.Tualatin, OR 970621417941600
  11. Thomas Wynne, M.D.Portland, OR 972271417945106
  12. Jehan Yahya, MDPortland, OR 972161871032847
  13. Norman Yeh, M.D.Corvallis, OR 973301679869283
  14. Kristina Young, M.D., PH.D.Portland, OR 972131518286871
  15. Grace Yuh, M.D.McMinnville, OR 971281881631745

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.