Thomas Gustafson, D.O.
NPI 1285669093 · Family Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Gustafson, D.O. is a Family Medicine Physician provider in Seattle, WA (NPI 1285669093).
Provider details
- NPI number
- 1285669093
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- OP00001187 (WA)
Specialties & taxonomies
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
- 2006-07-11
- Last updated
- 2007-07-09
Frequently asked questions
- What is Thomas Gustafson's NPI number?
- Thomas Gustafson's National Provider Identifier (NPI) is 1285669093, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Gustafson's specialty?
- Thomas Gustafson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Gustafson located?
- Thomas Gustafson's practice location on file with NPPES is 1717 Nw Market St, Seattle, WA 98107-5225.
- What is Thomas Gustafson's phone number?
- The practice phone number listed in the NPPES registry for Thomas Gustafson is (206) 782-0500.
- Does Thomas Gustafson accept Medicare?
- Thomas Gustafson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Gustafson's NPI active?
- Yes — Thomas Gustafson's NPI (1285669093) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.