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

Gretchen Holtz, MSW, LICSW

Individual provider Clinical Social Worker · NPI 1629402615

Gretchen Holtz, MSW, LICSW is a Clinical Social Worker in Seattle, Washington. Practices as a sole proprietor and works from 2 locations. Licensed in Washington.

Licensed in
WA
In the registry since
2013
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.
LICSW — Licensed Independent Clinical Social Worker
The title some states use for an independently practising clinical social worker.

See every abbreviation used in this directory →

Practice location Address checks out

320 NE 97th St
Seattle, WA 98115-2042
Phone: (425) 640-7009
Show map & directions

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

Additional practice locations (1)

  • 17520 Linden Ave N Apt B402, Shoreline, WA 98133-4839 — (206) 841-4302

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LW61457871 (WA)

Record details

NPI number1629402615
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW , LICSW
Sole proprietorYes
NPI enumeratedAugust 26, 2013
Last updated in NPPESJuly 31, 2024
Certification dateJuly 31, 2024

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