Radiation Oncologists in Oregon
Data updated monthly · Last refresh October 2026
117 Radiation Oncology providers practice in Oregon, including 41 (35%) offering telehealth. The largest concentration is in Portland. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
117providers
41telehealth
Portlandtop city
Radiation Oncology by city in Oregon
Choose a city to see providers there.
Where Radiation Oncologists in Oregon practice
From CMS Medicare enrollment records covering 77 of the 117 providers listed here (66%). Providers who do not bill Medicare are not included in these figures.
10%solo or small practice (under 10 clinicians)
14%mid-size group (10 to 99)
75%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Radiation Oncologists | All clinicians in group | Main city |
| University Professional Services | 11 | 1,683 | Portland |
| The Oregon Clinic, PC | 11 | 353 | Portland |
| Kaiser Foundation Health Plan of the Northwest | 7 | 1,805 | Portland |
| St Charles Health System Inc. | 7 | 379 | Bend |
| Legacy Clinics LLC | 5 | 714 | Portland |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Radiation Oncologists affiliated |
| Ohsu Hospital and Clinics | Portland | Nonprofit | 3 of 5 | 27 |
| Providence Portland Medical Center | Portland | Nonprofit | 4 of 5 | 13 |
| Providence St Vincent Medical Center | Portland | Nonprofit | 4 of 5 | 9 |
| Asante Rogue Regional Medical Center | Medford | Nonprofit | 4 of 5 | 7 |
| Salem Hospital | Salem | Nonprofit | 3 of 5 | 7 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Radiation Oncology providers in Oregon
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Margaret Thompson, M.D.Amity, OR · No drug or device payments recorded (2025) ·
(503) 843-2767 Dr. Pehr Hartvigson, MDAstoria, OR · No drug or device payments recorded (2025) ·
(503) 338-4085 Dr. Lauren Andring, MDBend, OR · $14 in drug and device payments (2025) · Telehealth ·
(541) 706-5922 Dr. Linyee Chang, M.D.Bend, OR · No drug or device payments recorded (2025) ·
(541) 706-5800 Dr. Lucas Vitzthum, M.D.Bend, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 382-4321 Dr. Michael Wahl, M.D.Bend, OR · $22 in drug and device payments (2025) · Telehealth ·
(541) 706-5800 Dr. Nicholas Boehling, M.D.Bend, OR · $14 in drug and device payments (2025) · Telehealth ·
(541) 706-5800 Dr. Russ Omizo, M.D.Bend, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 706-5800 Dr. Thomas Comerford, MDBend, OR · No drug or device payments recorded (2025) ·
(541) 388-7733 Dr. Whitney SumnerBend, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 706-5800 Dr. Jerald Albrich, M.D.Canby, OR · No drug or device payments recorded (2025) ·
(503) 651-3531 Dr. Brian Fuller, M.D.Coos Bay, OR · $35 in drug and device payments (2025) ·
(541) 269-8520 Dr. Carl Jenson, MDCoos Bay, OR · $149 in drug and device payments (2025) ·
(541) 269-8111 Dr. Alexander BagleyCorvallis, OR · $38 in drug and device payments (2025) · Telehealth ·
(541) 768-4950 Dr. Bruce Frey, M.D.Corvallis, OR · No drug or device payments recorded (2025) ·
(541) 768-5220 Dr. David Kantorowitz, MDCorvallis, OR · $37 in drug and device payments (2025) ·
(541) 768-7722 Dr. Mary Austin-seymour, M.D.Corvallis, OR · No drug or device payments recorded (2025) ·
(541) 768-5220 Dr. Matthew Thurman, M.D.Corvallis, OR · $555 in drug and device payments (2025) · Telehealth ·
(541) 768-5220 Dr. Michael Carrasquilla, MDCorvallis, OR · $197 in drug and device payments (2025) · Telehealth ·
(541) 768-5220 Dr. Michael Huntington, M.D.Corvallis, OR · No drug or device payments recorded (2025) ·
(541) 768-5220 Dr. Norman Yeh, M.D.Corvallis, OR · $112 in drug and device payments (2025) ·
(541) 768-4950 Dr. Patrice Mcgowan, M.D.Corvallis, OR · $73 in drug and device payments (2025) ·
(541) 768-4950 Dr. David Fryefield, MDEugene, OR · No drug or device payments recorded (2025) ·
(541) 683-5001 Dr. Emily Dunn, M.D.Eugene, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 683-5001 Dr. Haidy Lee, MDEugene, OR · $3,380 in drug and device payments (2025) · Telehealth ·
(541) 683-5001 Dr. Julie Gemmell, MDEugene, OR · No drug or device payments recorded (2025) ·
(541) 683-5001 Dr. Merideth Wendland, M.DEugene, OR · No drug or device payments recorded (2025) · Telehealth ·
(541) 683-5001 Dr. Michael Bullock, MDEugene, OR · No drug or device payments recorded (2025) ·
(541) 683-5001 Dr. Thomas Sroka, MDEugene, OR · $617 in drug and device payments (2025) · Telehealth ·
(541) 683-5001 Dr. Halil Ikizler, MDGrants Pass, OR · $32 in drug and device payments (2025) · Telehealth ·
(541) 472-7040 Dr. Theodore Robnett, M.D.Grants Pass, OR · No drug or device payments recorded (2025) ·
(541) 472-7040 Dr. Grant Harmon, MDGresham, OR · No drug or device payments recorded (2025) ·
(503) 674-1152 Dr. Kathryn Panwala, M.D.Gresham, OR · $71 in drug and device payments (2025) · Telehealth ·
(503) 674-1152 Dr. Akanksha Rajeurs, M.D.Happy Valley, OR · $541 in drug and device payments (2025) · Telehealth ·
(971) 386-1700 Dr. Kiri Cook, MDHappy Valley, OR · $51 in drug and device payments (2025) · Telehealth ·
(971) 386-1700 Dr. Timur Mitin, M.D., PH.D.Hillsboro, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 681-4200 Dr. Hans Kim, MDKlamath Falls, OR · $138 in drug and device payments (2025) ·
(541) 274-4171 Dr. Aasheeshraj Kanwar, M.D.Mcminnville, OR · $105 in drug and device payments (2025) ·
(503) 435-6590 Dr. Grace Yuh, M.D.Mcminnville, OR · $25 in drug and device payments (2025) · Telehealth ·
(503) 435-6593 Dr. Theodore Williamson, M.D.Mcminnville, OR · No drug or device payments recorded (2025) ·
(503) 435-6590 Dr. Craig Haveman, M.D.Medford, OR · No drug or device payments recorded (2025) ·
(541) 789-4263 Dr. Eric Mullen, M.D.Medford, OR · No drug or device payments recorded (2025) ·
(541) 732-7000 Dr. Gordon Metz, M.D.Medford, OR · No drug or device payments recorded (2025) ·
(541) 789-4263 Dr. Jere Sandefur, M.D.Medford, OR · No drug or device payments recorded (2025) ·
(541) 789-4263 Dr. Ming Zeng, MDMedford, OR · No drug or device payments recorded (2025) ·
(541) 789-4673 Dr. Case Ketting, MDPendleton, OR · $61 in drug and device payments (2025) ·
(541) 304-2264 Dr. Joshua Garren, MDPendleton, OR · No drug or device payments recorded (2025) ·
(541) 304-2264 Dr. Aaron Grossberg, MD, PHDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-8756 Common questions
How many Radiation Oncology providers are in Oregon?There are 117 Radiation Oncology providers with active NPI records practicing in Oregon, according to federal NPPES data refreshed monthly.
Do Radiation Oncology providers in Oregon offer telehealth?Yes. 41 of the 117 Radiation Oncology providers in Oregon (about 35%) report offering telehealth services in CMS data.
Which cities in Oregon have the most Radiation Oncology providers?Portland (53), Corvallis (9), Bend (8) have the highest concentration of Radiation Oncology providers in Oregon.
How many Radiation Oncology providers in Oregon received drug or device company payments?47 of 117 Radiation Oncology providers in Oregon (40%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Radiation Oncologists in Oregon work in independent practices or large health systems?Among 77 Radiation Oncologists in Oregon enrolled in Medicare, 10% bill through a solo or small practice with fewer than 10 clinicians, 14% through a mid-size group of 10 to 99, and 75% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Radiation Oncologists in Oregon work at?According to CMS facility affiliation records, the Oregon hospitals where the most Radiation Oncologists hold privileges are Ohsu Hospital and Clinics in Portland; Providence Portland Medical Center in Portland; Providence St Vincent Medical Center in Portland.
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