OrganizationActive
Thomas C Gustafson
NPI 1821213612 · General Practice Physician · Seattle, WA
Provider details
- NPI number
- 1821213612
- Entity type
- Organization
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Thomas Gustafson, Physician(206) 782-0500
- License
- AP30007148 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
Detailed profile(89/100 index)
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
1717 Nw Market St
Seattle, WA 98107-5225
Phone: (206) 782-0500
Fax: (206) 782-0502
Street-level locationGet directions
Mailing address
1717 Nw Market St
Seattle, WA 98107-5225
Other names (DBA / former)
- Doing business as
- Market Street Clinic
Registry dates
- Enumerated
- 2007-04-16
- Last updated
- 2008-07-14
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.