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

Mr. Brennan D Williams

Individual provider Counselor · NPI 1861712960

Mr. Brennan D Williams is a Counselor in Boston, Massachusetts. Registered with an NPI since 2010.

In the registry since
2010

Practice location Address checks out

143 N St
Boston, MA 02127-3233
Phone: (617) 515-9006
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Counselor (primary) Taxonomy 101Y00000X

Record details

NPI number1861712960
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 11, 2010
Last updated in NPPESJune 11, 2010
Mailing address143 N St, Boston, MA 02127-3233

Other providers in Boston