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

David A Slagle, MS

Individual provider Marriage & Family Therapist · NPI 1174176127

David A Slagle, MS is a Marriage & Family Therapist in Shoreline, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2019
What do these letters mean?
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Practice location Address checks out

1424 NE 155th St Ste 205
Shoreline, WA 98155-7104
Phone: (206) 271-1131
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 00001108 (WA)

Record details

NPI number1174176127
Entity typeIndividual (Type 1)
GenderMale
Credentials MS
Sole proprietorYes
NPI enumeratedJuly 18, 2019
Last updated in NPPESJuly 18, 2019
Mailing address3942 Ne 186th St, Lake Forest Park, WA 98155-2700

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