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Seattle Rheumatology Associates Pllc

Rheumatology Physician in Seattle, WA · enumerated 2006 · authorized official Philip Mease, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1346306453

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Registry record

Entity type Organization (Type 2)
Legal business name Seattle Rheumatology Associates Pllc
Practice address 1229 Madison St Ste 1450, Seattle, WA, 98104
Phone (206) 844-6001
Fax (206) 844-6002
Enumeration date Dec 31, 2006
Last updated in NPPES Dec 16, 2024

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD00016710 (WA) Secondary
207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License MD00016710 (WA) Primary

Authorized official

Name Philip Mease
Title Owner
Phone (206) 979-1943

Other identifiers

Identifier Type State Issuer
7107899 Medicaid WA -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Who is the authorized official for Seattle Rheumatology Associates Pllc?
NPPES lists Philip Mease (Owner) as the authorized official for this organization.
What is the NPI number for Seattle Rheumatology Associates Pllc?
The NPI for Seattle Rheumatology Associates Pllc is 1346306453, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-16.