Seattle Rheumatology Associates PLLC
NPI 1346306453 · Rheumatology Physician · Seattle, WA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seattle Rheumatology Associates PLLC is a Rheumatology Physician organization in Seattle, WA (NPI 1346306453).
Provider details
- NPI number
- 1346306453
- Entity type
- Organization
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Philip Mease, Owner(206) 979-1943
- License
- MD00016710 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-31
- Last updated
- 2024-12-16
- Certified
- 2024-12-16
Frequently asked questions
- What is Seattle Rheumatology Associates PLLC's NPI number?
- Seattle Rheumatology Associates PLLC's National Provider Identifier (NPI) is 1346306453, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Seattle Rheumatology Associates PLLC?
- Seattle Rheumatology Associates PLLC is classified in the NPPES registry as Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Seattle Rheumatology Associates PLLC located?
- Seattle Rheumatology Associates PLLC's practice location on file with NPPES is 1229 Madison St Ste 1450, Seattle, WA 98104-3538.
- What is Seattle Rheumatology Associates PLLC's phone number?
- The practice phone number listed in the NPPES registry for Seattle Rheumatology Associates PLLC is (206) 844-6001.
- Does Seattle Rheumatology Associates PLLC accept Medicare?
- Seattle Rheumatology Associates PLLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Seattle Rheumatology Associates PLLC?
- The authorized official listed on Seattle Rheumatology Associates PLLC's NPPES record is Philip Mease, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Seattle Rheumatology Associates PLLC's NPI active?
- Yes — Seattle Rheumatology Associates PLLC's NPI (1346306453) is active in the NPPES registry as of the last update on 2024-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.