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

Individual provider Clinical Social Worker · NPI 1689730483

MS. Gwendolyn Joy Gielow, LCSW is a Clinical Social Worker in Boulder, Colorado. Practices as a sole proprietor. Licensed in Colorado.

Licensed in
CO
In the registry since
2006
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

1333 Iris Ave
Boulder, CO 80304-2226
Phone: (303) 443-8500
Fax: (303) 449-6029
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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 992699 (CO)

Record details

NPI number1689730483
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedDecember 28, 2006
Last updated in NPPESApril 3, 2014

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