12 Allergy & Immunology (Internal Medicine) providers practice in Washington, including 7 (58%) offering telehealth. The largest concentration is in Seattle. 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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From CMS Medicare enrollment records covering 10 of the 12 providers listed here (83%). Providers who do not bill Medicare are not included in these figures.
| Group (as registered with Medicare) | Allergists (Internal Medicine) | All clinicians in group | Main city |
| The Association of University Physicians | 6 | 3,484 | Seattle |
| Hospital | City | Ownership | CMS star rating | Allergists (Internal Medicine) affiliated |
| University of Washington Medical Ctr | Seattle | Government | 4 of 5 | 6 |
| Harborview Medical Center | Seattle | Government | 2 of 5 | 2 |
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.
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.
There are 12 Allergy & Immunology (Internal Medicine) providers with active NPI records practicing in Washington, according to federal NPPES data refreshed monthly.
Yes. 7 of the 12 Allergy & Immunology (Internal Medicine) providers in Washington (about 58%) report offering telehealth services in CMS data.
Seattle (9), Everett (1), Vancouver (1) have the highest concentration of Allergy & Immunology (Internal Medicine) providers in Washington.
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.
Among 10 Allergists (Internal Medicine) in Washington enrolled in Medicare, 10% bill through a solo or small practice with fewer than 10 clinicians, 0% through a mid-size group of 10 to 99, and 90% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
According to CMS facility affiliation records, the Washington hospitals where the most Allergists (Internal Medicine) hold privileges are University of Washington Medical Ctr in Seattle; Harborview Medical Center in Seattle.
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