Radiation Oncology in Washington
245 licensed radiation oncologists practicing in Washington across 66 cities.
This page republishes public records from the federal NPI Registry, which every licensed U.S. healthcare provider is required to maintain. These are federal-agency records, not a directory we compile.
Source: NPI Registry · last checked
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Click a city to filter the 50 providers shown below. Washington has providers in 66 cities total — search the full NPI Registry for cities not shown here.
NPI Registry records — Radiation Oncology in Washington
33 of 50 shown have disclosed payments in CMS Open Payments (2024)
Showing 50 of 245 federal NPI records, alphabetical by last name. Contact details come directly from the NPI Registry — verify currency with the provider's office. Pharma / device payment disclosures from CMS Open Payments are shown where the physician appears in that federal database.
Bryan Ager, MD
605 E Holland Ave Ste 100
Spokane, WA 99218 · (509) 228-1000
License: MD61047573 (WA)
In 2024, $662 was disclosed to this physician across 28 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($662).
Largest single payer: AstraZeneca Pharmaceuticals LP ($200).
Phyllis Joyce Ager, MD
1155 Mill St, Mail Code L11
Reno, NV 89502 · (775) 982-4000
License: 11890 (NV)
In 2024, $21 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($21).
Largest single payer: Merck Sharp & Dohme LLC ($21).
Ahsen Uzair Ahmed, MD
1959 Ne Pacific St.
Seattle, WA 98195 · (206) 520-5000
License: MD61571671 (WA)
In 2024, $17 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($17).
Largest single payer: Abbott Laboratories ($17).
Jes Alexander
1600 Divisadero St # H1031
San Francisco, CA 94143 · (415) 353-9880
License: A114416 (CA)
In 2024, $156 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($156).
Largest single payer: RefleXion Medical, Inc. ($156).
Gregory W Allen, MD, PHD
4525 3rd Ave Se, Suite 100
Lacey, WA 98503 · (360) 412-8960
License: MD00047784 (WA)
In 2023, $27 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($27).
Smith Apisarnthanarax, MD
1570 N 115th St
Seattle, WA 98133 · (206) 306-2804
License: MD60335889 (WA)
In 2024, $93 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($93).
Largest single payer: Daiichi Sankyo Inc. ($93).
Andrea Lee Harper Arnett, MD, PHD
3301 Squalicum Pkwy
Bellingham, WA 98225 · (360) 788-8222
License: MD61259417 (WA)
In 2024, $188 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($188).
Largest single payer: AstraZeneca Pharmaceuticals LP ($124).
William Tristram Arscott, MD
12123 Sw 69th Ave
Tigard, OR 97223 · (971) 708-7600
License: MD192304 (OR)
In 2024, $181 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($181).
Largest single payer: Boston Scientific Corporation ($181).
Spencer N Ashton, MD
600 S Medical Center Dr
St George, UT 84790 · (435) 688-4175
License: 8602188-1205 (UT)
In 2024, $54 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($54).
Largest single payer: Siemens Medical Solutions USA, Inc. ($54).
Kasra R Badiozamani, MD
60 Memorial Medical Pkwy
Palm Coast, FL 32164 · (386) 586-2060
License: ME154391 (FL)
In 2023, $150 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($150).
Andrew Buhl Barbour, MD, PHD
12040 Ne 128th St, Ms 63
Kirkland, WA 98034 · (425) 899-1860
License: MD.MD.70009328 (WA)
In 2023, $458 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($458).
Todd A Barnett, MD
1221 Madison, 1st Floor, C/o Swedish Cancer Institute
Seattle, WA 98104 · (206) 386-2323
License: MD00030885 (WA)
Kenneth S Bergman, MD
11511 Canterwood Blvd Nw, Suite 50
Gig Harbor, WA 98332 · (253) 851-5155
License: MD00030100 (WA)
In 2024, $135 was disclosed to this physician across 6 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($135).
Largest single payer: Telix Pharmaceuticals ($36).
Herbert Carl Berry, MD
65 E. Roanoke St.
Seattle, WA 98102 · (206) 323-0982
License: MD00010468 (WA)
Clare S Bertucio, MD
939 Caroline St
Port Angeles, WA 98362 · (360) 417-7000
License: MD00038385 (WA)
Sudershan Kumar Bhatia, MD
1595 Ne Pacific St
Seattle, WA 98195 · (206) 520-5000
License: TR61150296 (WA)
Nathan Bittner, MD
400 15th Ave Se Ste a
Puyallup, WA 98372 · (253) 841-4311
License: ML20007539 (WA)
In 2024, $478 was disclosed to this physician across 16 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($478).
Largest single payer: VisionRT, Inc. ($125).
John C Blasko, MD
1101 Madison, Suite 1101, C/o Seattle Prostate Institute
Seattle, WA 98104 · (206) 215-2480
License: MD00016098 (WA)
Kathryn Havard Blau, MD, MS
1959 Ne Pacific St.
Seattle, WA 98195 · (206) 598-4121
License: MD61314116 (WA)
James G Blom, MD
3851 Piper St, Tower U, Suite Ll002
Anchorage, AK 99508 · (907) 212-3186
License: 6548 (AK)
In 2024, $28 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($28).
Largest single payer: NOVARTIS PHARMACEUTICALS CORPORATION ($28).
In 2024, $28 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($28).
Largest single payer: Novocure Inc. ($28).
Jessica Frances Burlile, MD
3551 Roger Brooke Dr
Fort Sam Houston, TX 78234 · (210) 916-2500
License: 69745 (MN)
In 2023, $201 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($201).
Christopher Adam Canning, MD
201 16th Ave E, Group Health Cooperative Central Hospital
Seattle, WA 98112 · (206) 326-3490
License: pending (WA)
In 2024, $44 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($44).
Largest single payer: Siemens Medical Solutions USA, Inc. ($44).
Christine Myung-Sook Cha, MD
3301 Squalicum Pkwy
Bellingham, WA 98225 · (360) 788-8222
License: MD24657 (OR)
In 2023, $1,211 was disclosed to this physician across 11 transactions by pharmaceutical or medical-device companies.
Mostly meals and beverages ($752) and entertainment ($459).
Roscoe Ho-Keung Chan, MD, FRCPC
1100 Gail Gardner Way
Prescott, AZ 86305 · (928) 776-1040
License: 37785 (AZ)
In 2024, $135 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($135).
Largest single payer: Teleflex LLC ($81).
Jonathan Chen, MD, PHD
825 Eastlake Ave E
Seattle, WA 98109 · (206) 520-5000
License: MD60912635 (WA)
In 2023, $333 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($333).
Michael King Hei Cheung, MD
1959 Ne Pacific St, University of Washington, Dept. of Radiation Oncology
Seattle, WA 98195 · (206) 598-4100
License: MD60542197 (WA)
In 2024, $46 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($46).
Largest single payer: Siemens Medical Solutions USA, Inc. ($46).
In 2024, $17 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($17).
Largest single payer: Myriad Genetic Laboratories, Inc. ($17).
Juno Choe, MD, PHD
7350 W Deschutes Ave
Kennewick, WA 99336 · (509) 783-9894
License: MD60149283 (WA)
In 2024, $517 was disclosed to this physician across 12 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($517).
Largest single payer: Boston Scientific Corporation ($330).
In 2023, $27 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($27).
In 2024, $27 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($27).
Largest single payer: Pfizer Inc. ($27).
David E Davenport, MD
1204 N Vercler Rd, Ste 101
Spokane Valley, WA 99216 · (509) 228-1000
License: M5335 (ID)
In 2024, $339 was disclosed to this physician across 4 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($339).
Largest single payer: GlaxoSmithKline, LLC. ($125).
In 2024, $32 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($32).
Largest single payer: Boston Scientific Corporation ($18).
Tru-Khang Dinh, MD
1959 Ne Pacific St Rm Bb-527, Box 356421
Seattle, WA 98195 · (206) 543-3605
License: 63070 (TN)
In 2024, $16 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($16).
Largest single payer: Pfizer Inc. ($16).
Robert M Douglas, MD
400 South 43rd Street, C/o Valley Radiation Oncology
Renton, WA 98055 · (425) 251-5121
License: MD00042601 (WA)
In 2024, $92 was disclosed to this physician across 3 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($92).
Largest single payer: Telix Pharmaceuticals ($66).
In 2024, $18 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly gifts ($18).
Largest single payer: Merck Sharp & Dohme LLC ($18).
Delnora Erickson, MD
9040 Jackson Ave Madigan Army Medical Center
Tacoma, WA 98431 · (253) 968-2252
License: D78762 (MD)
Ralph Philip Ermoian, MD
1959 Ne Pacific St
Seattle, WA 98195 · (206) 598-4100
License: MD60041447 (WA)
Steve M Eulau, MD
1221 Madison, 1st Floor, C/o Swedish Cancer Institute
Seattle, WA 98104 · (206) 386-2323
License: MD00035739 (WA)
In 2024, $66 was disclosed to this physician across 2 transactions by pharmaceutical or medical-device companies.
Mostly entertainment ($66).
Largest single payer: Telix Pharmaceuticals ($40).
Robert Snead Fain, MD
820 N Chelan Ave
Wenatchee, WA 98801 · (509) 663-8711
License: MD61425652 (WA)
In 2023, $20 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($20).
Li-Ming Christine Fang, MD
1959 Ne Pacific St, C212, Box 356340
Seattle, WA 98195 · (206) 543-0065
License: ML20008795 (WA)
In 2023, $16 was disclosed to this physician across 1 transaction by pharmaceutical or medical-device companies.
Mostly entertainment ($16).
Showing 50 of 245. Search all on NPI Registry →
Payment totals shown for the latest published program year (2024). Presence of disclosed payments is not, on its own, a conflict of interest. Physicians dispute records directly with CMS (dispute process). How we show this.
Open Payments figures as displayed on . Corrections flow from the manufacturer through CMS and are adopted on our next refresh.
What this page is: a republication of public federal NPI Registry records, filtered to the radiation oncology taxonomy. It is not a directory we curate, and inclusion is automatic based on each provider's own NPI filing with CMS. Providers who believe their NPI record is inaccurate should update it directly with CMS at npiregistry.cms.hhs.gov; our next refresh adopts the corrected federal record.
Practice info disclaimer: Provider addresses and phone numbers come from the NPI Registry, which providers update at their discretion. Always call ahead to confirm the provider is currently accepting patients and is at the listed address.
Medical disclaimer: This page is not a quality ranking and does not constitute medical advice or endorsement. Choose a provider in consultation with your primary care physician or care team.
Source: NPI Registry (taxonomy: Radiation Oncology) · Last checked: 2026-04-20