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

Cathleen M O'Brien, MSW

Individual provider Clinical Social Worker · NPI 1821145178

Cathleen M O'Brien, MSW is a Clinical Social Worker in Westborough, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2007
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

See every abbreviation used in this directory →

Practice location Address checks out

125 Turnpike Rd Ste 5
Westborough, MA 01581-2841
Phone: (508) 626-8778
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 1026001 (MA)

Record details

NPI number1821145178
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSW
Sole proprietorYes
NPI enumeratedJanuary 5, 2007
Last updated in NPPESMarch 31, 2022
Certification dateMarch 31, 2022
Mailing address19 Catherine Rd, Framingham, MA 01701-2720

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