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William Affolter, M.D.
NPI 1902953367 · Family Medicine Physician · Seattle, WA
William Affolter, M.D. is a Family Medicine Physician provider in Seattle, WA (NPI 1902953367).
Provider details
- NPI number
- 1902953367
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD00011351 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 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
125 16th Ave E
Csb-4
Seattle, WA 98112-5211
Phone: (506) 326-3530
Street-level locationGet directions
Mailing address
Po Box 34584
Seattle, WA 98124-1584
Registry dates
- Enumerated
- 2007-01-05
- Last updated
- 2007-10-17
Frequently asked questions
- What is William Affolter's NPI number?
- William Affolter's National Provider Identifier (NPI) is 1902953367, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Affolter's specialty?
- William Affolter is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Affolter located?
- William Affolter's practice location on file with NPPES is 125 16th Ave E, Seattle, WA 98112-5211.
- What is William Affolter's phone number?
- The practice phone number listed in the NPPES registry for William Affolter is (506) 326-3530.
- Is William Affolter's NPI active?
- Yes — William Affolter's NPI (1902953367) is active in the NPPES registry as of the last update on 2007-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.