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

MS. Margaret Matheson O'Brien

Individual provider Mental Health Counselor · NPI 1821309741

MS. Margaret Matheson O'Brien is a Mental Health Counselor in Dorchester, Massachusetts. Registered with an NPI since 2010.

In the registry since
2010

Practice location Address checks out

105 Victory Rd
Dorchester, MA 02122-3518
Phone: (617) 619-6910
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1821309741
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedJune 24, 2010
Last updated in NPPESJune 24, 2010

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