Oncologists in Washington
Data updated monthly · Last refresh October 2026
183 Medical Oncology providers practice in Washington, including 76 (42%) offering telehealth. The largest concentration is in Seattle. 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.
183providers
76telehealth
Seattletop city
Medical Oncology by city in Washington
Choose a city to see providers there.
Medical Oncology providers in Washington
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. Marco MielcarekSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-1000 Dr. Marie Bleakley, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-1000 Dr. Mark FrohlichSeattle, WA · $41,337 in drug and device payments (2025) ·
(206) 744-3241 Dr. Mary DisisSeattle, WA · No drug or device payments recorded (2025) ·
(206) 598-4100 Dr. Merav Bar, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 520-5000 Dr. Michael Schweizer, M.D.Seattle, WA · $5,850 in drug and device payments (2025) · Telehealth ·
(206) 288-1000 Dr. Min Park, M.D.Seattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5000 Dr. Mohamed Sorror, M.D., M.SC.Seattle, WA · $1,600 in drug and device payments (2025) · Telehealth ·
(206) 288-1000 Dr. Muneesh Tewari, MD, PHDSeattle, WA · $139 in drug and device payments (2025) ·
(206) 228-1000 Dr. Namrata Sethi, M.DSeattle, WA · $87 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Naomi HunderSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-1000 Dr. Natasha Hunter, M.D.Seattle, WA · $396 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Peter NelsonSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 288-1000 Dr. Petros Grivas, M.D.Seattle, WA · $100,380 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Philip Gold, MDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 386-2323 Dr. Philip Greenberg, MDSeattle, WA · $1,473 in drug and device payments (2025) ·
(206) 288-1025 Dr. Rachel Yung, M.D.Seattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 288-1000 Dr. Rafic Farah, MDSeattle, WA · $99,753 in drug and device payments (2025) ·
(206) 215-2658 Dr. Renato Martins, MD, MPHSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 288-1000 Dr. Robert Montgomery, M.D.Seattle, WA · $536 in drug and device payments (2025) · Telehealth ·
(206) 598-0860 Dr. Robin Jones, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 520-5307 Dr. Rosa Nadal Rios, MD, PHDSeattle, WA · $2,535 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Sam WhitingSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-1000 Dr. Scott TykodiSeattle, WA · $353 in drug and device payments (2025) · Telehealth ·
(206) 288-1000 Dr. Shailender Bhatia, MDSeattle, WA · $28,625 in drug and device payments (2025) · Telehealth ·
(206) 288-2015 Dr. Siddhartha Devarakonda, MDSeattle, WA · $125,021 in drug and device payments (2025) · Telehealth ·
(206) 386-2323 Dr. Somasundaram Subramaniam, MDSeattle, WA · $142 in drug and device payments (2025) · Telehealth ·
(206) 386-2323 Dr. Song Zhao, MDSeattle, WA · $5,066 in drug and device payments (2025) · Telehealth ·
(206) 386-9501 Dr. Stanley Riddell, MDSeattle, WA · $2,460 in drug and device payments (2025) ·
(206) 667-5249 Dr. Steven Blinka, MD, PHDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5000 Dr. Sujata Rao, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-1000 Dr. Sunil Hingorani, MD, PHDSeattle, WA · $110 in drug and device payments (2025) ·
(206) 228-1000 Dr. Thomas Lynch, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 520-5000 Dr. Veena Shankaran, MDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 288-7456 Dr. Verneeda Spencer, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 520-5000 Dr. Vijayakrishna Gadi, M.D. PHDSeattle, WA · $69,804 in drug and device payments (2025) ·
(206) 228-1000 Dr. Vivian Oehler, MDSeattle, WA · $5,253 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Vyshak Alva Venur, M.DSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5700 Dr. William Gwin, MDSeattle, WA · $7,819 in drug and device payments (2025) · Telehealth ·
(206) 744-5100 Dr. William Harris, MDSeattle, WA · $2,240 in drug and device payments (2025) · Telehealth ·
(206) 288-7222 Dr. William Schubach, MD, PHDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 764-2709 Dr. Jose Ruiz-bonilla, M.D.Sequim, WA · $172 in drug and device payments (2025) · Telehealth ·
(360) 683-9895 Dr. Manuel Macapinlac, M.D. Dr. Saifuddin Kasubhai, M.D.Sequim, WA · $302 in drug and device payments (2025) · Telehealth ·
(360) 683-9895 Dr. Tina Passalaris, M.D.Sequim, WA · $269 in drug and device payments (2025) · Telehealth ·
(360) 683-9895 Dr. William Harrer, M.D.Sequim, WA · $249 in drug and device payments (2025) · Telehealth ·
(360) 839-8953 Common questions
How many Medical Oncology providers are in Washington?There are 183 Medical Oncology providers with active NPI records practicing in Washington, according to federal NPPES data refreshed monthly.
Do Medical Oncology providers in Washington offer telehealth?Yes. 76 of the 183 Medical Oncology providers in Washington (about 42%) report offering telehealth services in CMS data.
Which cities in Washington have the most Medical Oncology providers?Seattle (94), Tacoma (9), Spokane (8) have the highest concentration of Medical Oncology providers in Washington.
How many Medical Oncology providers in Washington received drug or device company payments?91 of 183 Medical Oncology providers in Washington (50%) 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 Oncologists in Washington work in independent practices or large health systems?Among 99 Oncologists in Washington enrolled in Medicare, 3% bill through a solo or small practice with fewer than 10 clinicians, 7% through a mid-size group of 10 to 99, and 90% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Oncologists in Washington work at?According to CMS facility affiliation records, the Washington hospitals where the most Oncologists hold privileges are University of Washington Medical Ctr in Seattle; Swedish Medical Center in Seattle; Tacoma General Allenmore Hospital in Tacoma.
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