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

Mary Marsh, LCPC, LAC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1417371915

Mary Marsh, LCPC, LAC is a Mental Health Counselor in Great Falls, Montana. Qualified in 2012, 14 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
14
Licensed in
MT
In the registry since
2014
Specialties on file
2
What do these letters mean?
LCPC — Licensed Clinical Professional Counselor
A licensed clinical counsellor.
LAC — Licensed Associate Counselor
A counsellor practising under supervision toward full licensure. In some states the same letters mean Licensed Acupuncturist.

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Practice location Address checks out

712 13th St S
Great Falls, MT 59405-2344
Phone: (406) 788-1164
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence 69983 (MT)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 1368 (MT)

Record details

NPI number1417371915
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCPC , LAC
Sole proprietorYes
NPI enumeratedFebruary 5, 2014
Last updated in NPPESMarch 21, 2025
Certification dateMarch 21, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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