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

Colleen G Grass, RDH

Individual provider Dental Hygienist · NPI 1043518640

Colleen G Grass, RDH is a Dental Hygienist in Helena, Montana. Practices as a sole proprietor. Licensed in Montana.

Licensed in
MT
In the registry since
2011
What do these letters mean?
RDH — Registered Dental Hygienist
A licensed hygienist who cleans teeth and screens for oral disease.

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Practice location Address checks out

3248 Harness Loop
Helena, MT 59602-6011
Phone: (406) 227-7512
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dental Hygienist (primary) Taxonomy 124Q00000X · Licence 189 (MT)

Record details

NPI number1043518640
Entity typeIndividual (Type 1)
GenderFemale
Credentials RDH
Sole proprietorYes
NPI enumeratedMarch 5, 2011
Last updated in NPPESMarch 5, 2011

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