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

William John Koski, LISW

Individual provider Social Worker · NPI 1336442805

William John Koski, LISW is a Social Worker in North Branch, Minnesota. Licensed in Minnesota. Registered with an NPI since 2010.

Licensed in
MN
In the registry since
2010
What do these letters mean?
LISW — Licensed Independent Social Worker
A social worker licensed to practise independently.

See every abbreviation used in this directory →

Practice location Address checks out

5833 Pecan St
North Branch, MN 55056-6689
Phone: (651) 277-4283
Fax: (651) 277-4284
Show map & directions

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

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 7464 (MN)

Record details

NPI number1336442805
Entity typeIndividual (Type 1)
GenderMale
Credentials LISW
Sole proprietorNo
NPI enumeratedDecember 6, 2010
Last updated in NPPESDecember 6, 2010
Mailing address5833 Pecan St, North Branch, MN 55056-6689

Other providers in North Branch