Preventive Medicine/Occupational Environmental Medicine Doctors in Oregon
Data updated monthly · Last refresh October 2026
13 Preventive Medicine/Occupational Environmental Medicine 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.
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Preventive Medicine/Occupational Environmental Medicine by city in Oregon
Choose a city to see providers there.
Preventive Medicine/Occupational Environmental Medicine 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. Adrianne Feldstein, M.D.Beaverton, OR · No drug or device payments recorded (2025) ·
(503) 643-7565 Dr. Brooke Maylie, MD, MPHBeaverton, OR · No drug or device payments recorded (2025) ·
(503) 644-7300 Dr. David Ushman, MDBeaverton, OR · No drug or device payments recorded (2025) ·
(503) 520-4897 Dr. Jeffrey Pierson, MD, MPHClackamas, OR · No drug or device payments recorded (2025) ·
(503) 786-8435 Dr. John Braddock, M.D.Lake Oswego, OR · No drug or device payments recorded (2025) ·
(503) 635-1960 Dr. Carol Gunn, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 246-7030 Dr. David Hall, MD, MPHPortland, OR · No drug or device payments recorded (2025) ·
(503) 251-6363 Dr. Donald Rischitelli, MDPortland, OR · No drug or device payments recorded (2025) ·
(503) 246-7030 Dr. John Seymour, M.D.,M.P.HPortland, OR · No drug or device payments recorded (2025) ·
(503) 249-3531 Dr. Robert Campbell, M.D.Portland, OR · No drug or device payments recorded (2025) ·
(503) 232-1229 Dr. Daniel Gomez Ramos, DOSalem, OR · No drug or device payments recorded (2025) ·
(503) 362-5242 Dr. Curtis Thiessen, MDTualatin, OR · No drug or device payments recorded (2025) ·
(503) 885-7300 Dr. Joan Browning, M.D., M.S.P.H.Tualatin, OR · No drug or device payments recorded (2025) ·
(503) 885-7300 Common questions
How many Preventive Medicine/Occupational Environmental Medicine providers are in Oregon?There are 13 Preventive Medicine/Occupational Environmental Medicine providers with active NPI records practicing in Oregon, according to federal NPPES data refreshed monthly.
Which cities in Oregon have the most Preventive Medicine/Occupational Environmental Medicine providers?Portland (5), Beaverton (3), Tualatin (2) have the highest concentration of Preventive Medicine/Occupational Environmental Medicine providers in Oregon.
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.
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