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

MS. Marguerite Ann Grier, MWS, LWS

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1134392731

MS. Marguerite Ann Grier, MWS, LWS is an Addiction (Substance Use Disorder) Counselor in Pittsburgh, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2008

Practice location Address checks out

3501 Forbes Ave Ste 960
Pittsburgh, PA 15213-3317
Phone: (412) 605-1902
Fax: (412) 682-1041
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 SW011263L (PA)

Record details

NPI number1134392731
Entity typeIndividual (Type 1)
GenderFemale
Credentials MWS , LWS
Sole proprietorYes
NPI enumeratedApril 4, 2008
Last updated in NPPESApril 4, 2008

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