Hematologists and Oncologists in Washington
Data updated monthly · Last refresh October 2026
474 Hematology & Oncology providers practice in Washington, including 228 (48%) 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.
474providers
228telehealth
Seattletop city
Hematology & Oncology by city in Washington
Choose a city to see providers there.
Hematology & 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. Maria Christine Joy Sarmiento, M.D.Seattle, WA · No drug or device payments recorded (2025) ·
(206) 288-6956 Dr. Maria Del Pilar Palomo Moraleda, M.DSeattle, WA · No drug or device payments recorded (2025) ·
(206) 667-3709 Dr. Maria Ghiuzeli, MDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5000 Dr. Mariana Serpa, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-6956 Dr. Maria Palanca-wessels, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 667-7035 Dr. Maria SalvatierraSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-6956 Dr. Maria Zudaire, M.D.Seattle, WA · No drug or device payments recorded (2025) ·
(206) 288-6956 Dr. Marjorie Rose Bravo, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-6956 Dr. Marko Velimirovic, M.D.Seattle, WA · $118 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Martina Crysandt, M.D.Seattle, WA · No drug or device payments recorded (2025) ·
(206) 288-6956 Dr. Mary FlowersSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-1000 Dr. Mary Kwok, M.D.Seattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5000 Dr. Masumi Ueda Oshima, M.D.Seattle, WA · No drug or device payments recorded (2025) ·
(206) 288-1000 Dr. Matthew Schwede, MDSeattle, WA · $1,342 in drug and device payments (2025) · Telehealth ·
(206) 215-2658 Dr. Max Gordon, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 520-5000 Dr. Mazyar Shadman, MD,MPHSeattle, WA · $38,299 in drug and device payments (2025) · Telehealth ·
(206) 288-1000 Dr. Meaghan O'malley, M.D.Seattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 223-6193 Dr. Mehrdad Jafari Boroujerdi, MDSeattle, WA · $136 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Melinda Biernacki, M.D.Seattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5000 Dr. Mengyang Di, MDSeattle, WA · $8,764 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Michaela Tsai, MDSeattle, WA · $4 in drug and device payments (2025) · Telehealth ·
(206) 386-2323 Dr. Mikhail Perlov, M.D.Seattle, WA · $175 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Moacyr Ribeiro De Oliveira, M.D.Seattle, WA · $43 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Moreno Festuccia, M.D.Seattle, WA · No drug or device payments recorded (2025) ·
(206) 288-6956 Dr. Morgani Rodrigues, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 390-3309 Dr. Nadezhda Kholodnaya, MDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5000 Dr. Na Hyun Kim, MDSeattle, WA · $354 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Naif Aljohani, M.DSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-6956 Dr. Nanette Robinson, MDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 223-6193 Dr. Natalia Wuliji, DOSeattle, WA · $121 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Natalie Miller, MD, PHDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5000 Dr. Natalie Uy, MDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5000 Dr. Naveed Ali, M.D.Seattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5000 Dr. Neil Josephson, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 292-6570 Dr. Nellowe Candelario, M.D.Seattle, WA · $291 in drug and device payments (2025) · Telehealth ·
(206) 520-5000 Dr. Nicholas Burwick, M.D.Seattle, WA · No drug or device payments recorded (2025) ·
(206) 288-1000 Dr. Nicholas Giustini, M.D.Seattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 744-3000 Dr. Nicole Kuderer, M.D.Seattle, WA · $7,922 in drug and device payments (2025) ·
(206) 288-1000 Dr. Niels AndersenSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-6956 Dr. Nieves Dorado HerreroSeattle, WA · No drug or device payments recorded (2025) ·
(206) 288-6956 Dr. Nikhil Kamat, MDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 520-5000 Dr. Nina Lamble, MDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(855) 557-0555 Dr. Niranjan Rathod, M.D.Seattle, WA · No drug or device payments recorded (2025) ·
(206) 288-6956 Dr. Noam Kopmar, MDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 543-3605 Dr. Oyebimpe Adesina, MDSeattle, WA · No drug or device payments recorded (2025) · Telehealth ·
(206) 606-1621 Dr. Patrick Lee, MDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 520-5000 Dr. Paul MartinSeattle, WA · $1,621 in drug and device payments (2025) ·
(206) 288-1000 Dr. Paul Martin, M.D.Seattle, WA · $43 in drug and device payments (2025) · Telehealth ·
(206) 368-5800 Dr. Paul O'donnell, MD, PHDSeattle, WA · No drug or device payments recorded (2025) ·
(206) 667-1968 Dr. Peter Wasserman, M.D.Seattle, WA · No drug or device payments recorded (2025) ·
(206) 329-1760 Conditions Hematology & Oncology providers in Washington commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Hematology & Oncology providers. Individual practices vary, so confirm with the provider before booking.
- Breast cancer
- Lung cancer
- Lymphoma
- Leukemia
- Anemia
- Blood disorders
Common questions
How many Hematology & Oncology providers are in Washington?There are 474 Hematology & Oncology providers with active NPI records practicing in Washington, according to federal NPPES data refreshed monthly.
Do Hematology & Oncology providers in Washington offer telehealth?Yes. 228 of the 474 Hematology & Oncology providers in Washington (about 48%) report offering telehealth services in CMS data.
Which cities in Washington have the most Hematology & Oncology providers?Seattle (279), Tacoma (25), Spokane (24) have the highest concentration of Hematology & Oncology providers in Washington.
How many Hematology & Oncology providers in Washington received drug or device company payments?203 of 474 Hematology & Oncology providers in Washington (43%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Hematology & Oncology providers in Washington treat?Hematology & Oncology providers commonly treat breast cancer, lung cancer, lymphoma, leukemia, anemia and related conditions. Individual practices vary, so confirm with the provider before booking.
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 Hematologists and Oncologists in Washington work in independent practices or large health systems?Among 266 Hematologists and Oncologists in Washington enrolled in Medicare, 3% bill through a solo or small practice with fewer than 10 clinicians, 9% through a mid-size group of 10 to 99, and 88% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Hematologists and Oncologists in Washington work at?According to CMS facility affiliation records, the Washington hospitals where the most Hematologists and Oncologists hold privileges are University of Washington Medical Ctr in Seattle; Swedish Medical Center in Seattle; St Joseph Medical Center in Tacoma.
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