IndividualActive
Margaret Sigley, MD
NPI 1346318946 · Pediatrics Physician · Seattle, WA
Margaret Sigley, MD is a Pediatrics Physician provider in Seattle, WA (NPI 1346318946).
Provider details
- NPI number
- 1346318946
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD00012585 (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
4400 37th Ave S
Seattle, WA 98118-1609
Phone: (206) 296-4650
Fax: (206) 205-6075
Street-level locationGet directions
Mailing address
6852 34th Ave Ne
Seattle, WA 98115-7330
Registry dates
- Enumerated
- 2006-12-01
- Last updated
- 2023-03-07
Frequently asked questions
- What is Margaret Sigley's NPI number?
- Margaret Sigley's National Provider Identifier (NPI) is 1346318946, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Sigley's specialty?
- Margaret Sigley is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Sigley located?
- Margaret Sigley's practice location on file with NPPES is 4400 37th Ave S, Seattle, WA 98118-1609.
- What is Margaret Sigley's phone number?
- The practice phone number listed in the NPPES registry for Margaret Sigley is (206) 296-4650.
- Is Margaret Sigley's NPI active?
- Yes — Margaret Sigley's NPI (1346318946) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.