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

MS. Martha E. Irwin, LICSW

Individual provider Clinical Social Worker · NPI 1699857276

MS. Martha E. Irwin, LICSW is a Clinical Social Worker in Somerville, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2006
What do these letters mean?
LICSW — Licensed Independent Clinical Social Worker
The title some states use for an independently practising clinical social worker.

See every abbreviation used in this directory →

Practice location Address checks out

26 Oxford St
Somerville, MA 02143-1608
Phone: (617) 628-7255
Fax: (617) 628-2779
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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 100240 (MA)

Record details

NPI number1699857276
Entity typeIndividual (Type 1)
GenderFemale
Credentials LICSW
Sole proprietorYes
NPI enumeratedOctober 20, 2006
Last updated in NPPESFebruary 26, 2010
Mailing address26 Oxford St, Somerville, MA 02143-1608

Other providers in Somerville