Pediatric Hematologists and Oncologists in Oregon
Data updated monthly · Last refresh October 2026
37 Pediatric Hematology & Oncology providers practice in Oregon. 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.
37providers
Portlandtop city
Pediatric Hematology & Oncology by city in Oregon
Choose a city to see providers there.
Where Pediatric Hematologists and Oncologists in Oregon practice
From CMS Medicare enrollment records covering 13 of the 37 providers listed here (35%). Providers who do not bill Medicare are not included in these figures.
Largest practice groups
| Group (as registered with Medicare) | Pediatric Hematologists and Oncologists | All clinicians in group | Main city |
| University Professional Services | 11 | 1,683 | Portland |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Pediatric Hematologists and Oncologists affiliated |
| Ohsu Hospital and Clinics | Portland | Nonprofit | 3 of 5 | 3 |
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.
Pediatric Hematology & 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. Diane Williams, MDAshland, OR · No drug or device payments recorded (2025) ·
(541) 482-9741 Dr. Donna Bradshaw, MDAshland, OR · No drug or device payments recorded (2025) ·
(541) 201-4930 Dr. Ellen Plummer, MDMedford, OR · No drug or device payments recorded (2025) ·
(541) 789-4231 Dr. Allison Simpson, DOPortland, OR · No drug or device payments recorded (2025) ·
(503) 346-0640 Dr. Anthony Mckeiver, DOPortland, OR · No drug or device payments recorded (2025) ·
(999) 999-9999 Dr. Billy Chang, MD, PHDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-1543 Dr. Colette Lauhan, M.D.Portland, OR · $58 in drug and device payments (2025) ·
(503) 276-9300 Dr. Eneida Nemecek, MDPortland, OR · $9,463 in drug and device payments (2025) ·
(503) 494-0829 Dr. Evan Shereck, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-0829 Dr. Faith Galderisi, DOPortland, OR · No drug or device payments recorded (2025) ·
(503) 413-2156 Dr. Gregory Thomas, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-1543 Dr. James Jacobs, MD, MPHPortland, OR · $58 in drug and device payments (2025) ·
(503) 276-9378 Dr. Jamie Loutfy, DOPortland, OR · $402 in drug and device payments (2025) ·
(503) 418-5150 Dr. Janice Olson, M.D.Portland, OR · $58 in drug and device payments (2025) ·
(503) 276-9300 Dr. Jason Glover, MDPortland, OR · $183 in drug and device payments (2025) ·
(503) 279-9300 Dr. John Carter, M.D., PH.DPortland, OR · No drug or device payments recorded (2025) ·
(503) 418-5150 Dr. Katrina Winsnes, M.DPortland, OR · No drug or device payments recorded (2025) ·
(206) 914-5610 Dr. Kellee Parker, D.O.Portland, OR · $86 in drug and device payments (2025) ·
(503) 494-8211 Dr. Kellie Nazemi, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 494-1543 Dr. Kristina Haley, DOPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-0829 Dr. Krysta Schlis, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 494-1543 Dr. Lawrence Wolff, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 418-5150 Dr. Linda Stork, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-0829 Dr. Marie Martinelli, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 418-5150 Dr. Matthew Dietz, D.O.Portland, OR · No drug or device payments recorded (2025) ·
(503) 494-8211 Dr. Melinda WuPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-0829 Dr. Natalie Cassell, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 418-5150 Dr. Neha Patel, M.D.Portland, OR · $4,463 in drug and device payments (2025) ·
(503) 418-5150 Dr. Robert Trueworthy, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-1543 Dr. Ronald Prauner, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 276-9300 Dr. Ryan Fox-lee, MD, JDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-8311 Dr. Stephen Roberts, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 418-5150 Dr. Suman Malempati, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 494-1543 Dr. Susan Lindemulder, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 418-5456 Dr. Thomas Lamkin, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 418-1543 Dr. Trisha Wong, MDPortland, OR · $50 in drug and device payments (2025) ·
(503) 494-0829 Common questions
How many Pediatric Hematology & Oncology providers are in Oregon?There are 37 Pediatric Hematology & Oncology providers with active NPI records practicing in Oregon, according to federal NPPES data refreshed monthly.
Which cities in Oregon have the most Pediatric Hematology & Oncology providers?Portland (33), Ashland (2), Bend (1) have the highest concentration of Pediatric Hematology & Oncology providers in Oregon.
How many Pediatric Hematology & Oncology providers in Oregon received drug or device company payments?10 of 37 Pediatric Hematology & Oncology providers in Oregon (27%) 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.
Which hospitals do Pediatric Hematologists and Oncologists in Oregon work at?According to CMS facility affiliation records, the Oregon hospitals where the most Pediatric Hematologists and Oncologists hold privileges are Ohsu Hospital and Clinics in Portland.
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