Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mary Kay Duncan, MSW

Individual provider Clinical Social Worker · NPI 1386866390

Mary Kay Duncan, MSW is a Clinical Social Worker in Bellevue, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2007
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

See every abbreviation used in this directory →

Practice location Address checks out

10940 N.e 33rd Pl Ste 107
Bellevue, WA 98004-1432
Phone: (425) 827-3030
Fax: (425) 822-2960
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LW00004661 (WA)

Record details

NPI number1386866390
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW
Sole proprietorYes
NPI enumeratedMay 2, 2007
Last updated in NPPESJuly 8, 2007

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