Charles Janeway, M.D.
NPI 1043375199 · Internal Medicine Physician · Seattle, WA
Charles Janeway, M.D. is a Internal Medicine Physician provider in Seattle, WA (NPI 1043375199).
Provider details
- NPI number
- 1043375199
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD00010538 (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
- 2006-12-27
- Last updated
- 2009-08-12
Frequently asked questions
- What is Charles Janeway's NPI number?
- Charles Janeway's National Provider Identifier (NPI) is 1043375199, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Janeway's specialty?
- Charles Janeway is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Janeway located?
- Charles Janeway's practice location on file with NPPES is 125 16th Ave E, Seattle, WA 98112-5211.
- What is Charles Janeway's phone number?
- The practice phone number listed in the NPPES registry for Charles Janeway is (509) 241-4349.
- Is Charles Janeway's NPI active?
- Yes — Charles Janeway's NPI (1043375199) is active in the NPPES registry as of the last update on 2009-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.