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

William J Barker, LISW

Individual provider Social Worker · NPI 1699873422

William J Barker, LISW is a Social Worker in Grinnell, Iowa. Licensed in Iowa. Registered with an NPI since 2006.

Licensed in
IA
In the registry since
2006
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

200 4th Ave W
Grinnell, IA 50112
Phone: (641) 236-6137
Fax: (641) 236-0206
Show map & directions

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

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 00976 (IA)

Record details

NPI number1699873422
Entity typeIndividual (Type 1)
GenderMale
Credentials LISW
Sole proprietorNo
NPI enumeratedSeptember 20, 2006
Last updated in NPPESJuly 8, 2007
Mailing address200 4th Ave West, Grinnell, IA 50112

Other providers in Grinnell