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

Colleen J O'Connor, MSLACNCACII

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1841287117

Colleen J O'Connor, MSLACNCACII is an Addiction (Substance Use Disorder) Counselor in Billings, Montana. Practices as a sole proprietor. Licensed in Montana.

Licensed in
MT
In the registry since
2005

Practice location Address checks out

2320 3rd Ave N
Billings, MT 59101-2216
Phone: (406) 248-5558
Fax: (406) 245-0547
Show map & directions

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

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X · Licence 857 (MT)

Record details

NPI number1841287117
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSLACNCACII
Sole proprietorYes
NPI enumeratedOctober 3, 2005
Last updated in NPPESJuly 8, 2007

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