IndividualActive
Mary Duncan, M.S.W.
NPI 1386866390 · Clinical Social Worker · Bellevue, WA
Mary Duncan, M.S.W. is a Clinical Social Worker provider in Bellevue, WA (NPI 1386866390).
Provider details
- NPI number
- 1386866390
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- M.S.W.
- Sex
- Female
- Sole proprietor
- Yes
- License
- LW00004661 (WA)
Specialties & taxonomies
Behavioral Health & Social Service 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
10940 N.e. 33rd Place
Suite 107
Bellevue, WA 98004-1432
Phone: (425) 827-3030
Fax: (425) 822-2960
Street-level locationGet directions
Mailing address
10940 N.e. 33rd Place
Bellevue, WA 98004-1432
Registry dates
- Enumerated
- 2007-05-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Duncan's NPI number?
- Mary Duncan's National Provider Identifier (NPI) is 1386866390, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Duncan's specialty?
- Mary Duncan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Mary Duncan located?
- Mary Duncan's practice location on file with NPPES is 10940 N.e. 33rd Place, Bellevue, WA 98004-1432.
- What is Mary Duncan's phone number?
- The practice phone number listed in the NPPES registry for Mary Duncan is (425) 827-3030.
- Is Mary Duncan's NPI active?
- Yes — Mary Duncan's NPI (1386866390) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.