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

Kelli Grace Mullen, LCSW

Individual provider Clinical Social Worker · NPI 1578228961

Kelli Grace Mullen, LCSW is a Clinical Social Worker in Billings, Montana. Practices as a sole proprietor. Licensed in Montana.

Licensed in
MT
In the registry since
2021
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3737 Grand Ave Ste 6
Billings, MT 59102-6258
Phone: (406) 839-2985
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 50661 (MT)

Record details

NPI number1578228961
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedNovember 1, 2021
Last updated in NPPESNovember 1, 2021
Certification dateNovember 1, 2021

Other providers in Billings