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
Show map & directions

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

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