Medical Oncology in Portland, Oregon
Data updated monthly · Last refresh September 2026
69 Medical Oncology providers practice in Portland, and 49% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Medical Oncology providers in Portland
Listed alphabetically. 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. Regan Look, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 280-1223 Dr. Robert Lufkin, D.O.Portland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 239-7767 Dr. Rom Leidner, MDPortland, OR · $190 in drug and device payments (2025) · Telehealth ·
(503) 215-5696 Dr. Ronald Ng, MDPortland, OR · $321 in drug and device payments (2025) · Telehealth ·
(503) 494-6594 Dr. Rosemarie Mannino, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 220-8262 Dr. Shiuh-wen Luoh, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-8311 Dr. Shivaani KummarPortland, OR · $8,477 in drug and device payments (2025) · Telehealth ·
(503) 314-7168 Dr. Siddu Patil, M.D.Portland, OR · $252 in drug and device payments (2025) ·
(503) 494-6594 Dr. Spencer Shao, M.D.Portland, OR · $2,825 in drug and device payments (2025) · Telehealth ·
(503) 280-1223 Dr. Stacy Lewis, MDPortland, OR · $18,584 in drug and device payments (2025) · Telehealth ·
(503) 216-6300 Dr. Stephanie Chu, M.D., M.P.H.Portland, OR · No drug or device payments recorded (2025) · Telehealth ·
(971) 262-9600 Dr. Tanaya Shree, M.D., PH.D.Portland, OR · $215 in drug and device payments (2025) · Telehealth ·
(503) 494-7999 Dr. Theodore Braun, M.D., PH.D.Portland, OR · $4,239 in drug and device payments (2025) · Telehealth ·
(503) 494-8311 Dr. Todd Crocenzi, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 215-5696 Dr. Tomasz Beer, MDPortland, OR · $4,800 in drug and device payments (2025) · Telehealth ·
(503) 494-6594 Dr. Vishesh Khanna, MDPortland, OR · No drug or device payments recorded (2025) · Telehealth ·
(503) 494-6594 Dr. Walter Urba, MD, PHDPortland, OR · No drug or device payments recorded (2025) ·
(503) 215-5696 Dr. Zahi Mitri, M.D.Portland, OR · $884 in drug and device payments (2025) ·
(404) 839-0083 Dr. Zheng Topp, M.D.Portland, OR · $309 in drug and device payments (2025) · Telehealth ·
(503) 216-6300 Common questions
How many Medical Oncology providers are in Portland, Oregon?There are 69 Medical Oncology providers with active NPI records practicing in Portland, according to federal NPPES data refreshed monthly.
How many Medical Oncology providers in Portland received drug or device company payments?34 of 69 (49%) 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 records 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.
All specialties in Portland Medical Oncology across Oregon