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

MS. Mary E Mercier, LCSW

Individual provider Social Worker · NPI 1801023874

MS. Mary E Mercier, LCSW is a Social Worker in Hanson, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2009
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 →

Practice location Address checks out

112 Pine Grove Ave
Hanson, MA 02341-1453
Phone: (781) 293-6302
Fax: (781) 293-6724
Show map & directions

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

Specialties & licences

Social Worker (primary) Taxonomy 104100000X · Licence 202152 (MA)

Record details

NPI number1801023874
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW
Sole proprietorYes
NPI enumeratedJune 17, 2009
Last updated in NPPESJune 19, 2009
Mailing address112 Pine Grove Ave, Hanson, MA 02341-1453

Other providers in Hanson