HealthcareDiscovery.AI / Doctors / Oregon / Portland / Allergy

Allergy in Portland, Oregon

Data updated monthly · Last refresh September 2026

4 Allergy providers practice in Portland. Listings are drawn from federal public records and are not endorsements.

Allergy 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. Anita Tam Su, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 238-6233
Dr. Laurel Anderson Cowell, MD
Portland, OR · $65 in drug and device payments (2025) · Telehealth · (503) 297-4779
Dr. Mark O'hollaren, M.D.
Portland, OR · No drug or device payments recorded (2025) · (503) 228-0155
Dr. Robert Schwartz, MD
Portland, OR · No drug or device payments recorded (2025) · (503) 284-5239

Common questions

How many Allergy providers are in Portland, Oregon?

There are 4 Allergy providers with active NPI records practicing in Portland, according to federal NPPES data refreshed monthly.

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 Allergy across Oregon

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.