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

MS. Heather Eileen O'Brien, MSW

Individual provider Clinical Social Worker · NPI 1053560516

MS. Heather Eileen O'Brien, MSW is a Clinical Social Worker in Maynard, Massachusetts. Practices as a sole proprietor. Registered with an NPI since 2008.

In the registry since
2008
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

20C Maple St
Maynard, MA 01754-2341
Phone: (978) 841-5964
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X

Record details

NPI number1053560516
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW
Sole proprietorYes
NPI enumeratedSeptember 9, 2008
Last updated in NPPESSeptember 9, 2008
Mailing address20c Maple St, Maynard, MA 01754-2341

Other providers in Maynard