Douglas A. Shumaker, MD
Listed as an allergist, with 2 practice addresses in Portland, Oregon.
Practice locations 2
The Oregon Clinic, PC
5050 NE Hoyt, Suite 655
Portland, OR 97213The Oregon Clinic, PC
9701 SW Barnes, Suite 300
Portland, OR 97225
From the records
- Specialty
- Allergist
- Records
- Medicare records: Gastroenterology (October 2026). Allergy specialty from the national provider registry.
- Medicare
- Accepts the Medicare-approved amount as payment in full (Medicare assignment), according to CMS’s file. This applies to Original Medicare; Medicare Advantage plans have their own networks. What assignment means
- Telehealth
- Medicare’s file shows recent telehealth visits. It doesn’t mean every visit can be by video.
- Medical school
- Oregon Health Sciences University School of Medicine, graduated 1994 (Medicare records)
- Registry record
- Last updated December 2025
- NPI
- 1225034937 (national provider registry)
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From CMS’s Doctors and Clinicians file (October 2026) and the national provider registry, NPPES (October 2026). Listings are free and in alphabetical order; we don’t rate or recommend doctors. How we list doctors