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

Ann Williamson

Individual provider Clinical Social Worker · NPI 1770886236

Ann Williamson is a Clinical Social Worker in Chelmsford, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2010.

Licensed in
MA
In the registry since
2010

Practice location Address checks out

7 Summer St Ste 19
Chelmsford, MA 01824-3076
Phone: (978) 256-1444
Fax: (978) 441-1773
Show map & directions

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 115210 (MA)

Record details

NPI number1770886236
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedDecember 6, 2010
Last updated in NPPESDecember 6, 2010

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