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

Mary Katherine Griessmann, LICSW

Individual provider Clinical Social Worker · NPI 1265061485

Mary Katherine Griessmann, LICSW is a Clinical Social Worker in Spokane, Washington. Licensed in Washington. Registered with an NPI since 2020.

Licensed in
WA
In the registry since
2020
What do these letters mean?
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

2020 E 29th Ave Ste 215
Spokane, WA 99203-3949
Phone: (509) 437-2889
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence LW60935986 (WA)

Record details

NPI number1265061485
Entity typeIndividual (Type 1)
GenderFemale
Credentials LICSW
Sole proprietorNo
NPI enumeratedApril 8, 2020
Last updated in NPPESNovember 18, 2025
Certification dateNovember 18, 2025

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