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

MS. Shannon M Duffy, CCC-SLP

Individual provider Speech-Language Pathologist · NPI 1821709668

MS. Shannon M Duffy, CCC-SLP is a Speech-Language Pathologist in Lowell, Massachusetts. Works from 2 locations. Licensed in Massachusetts and New Hampshire.

Licensed in
MA, NH
In the registry since
2022
Specialties on file
2
What do these letters mean?
CCC-SLP — Certificate of Clinical Competence in Speech-Language Pathology
A speech-language pathologist certified by ASHA.

See every abbreviation used in this directory →

Practice location Address checks out

295 Varnum Ave
Lowell, MA 01854-2193
Phone: (978) 937-6000
Show map & directions

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

Additional practice locations (1)

  • 8 Prospect St, Nashua, NH 03060-3925 — (603) 577-2000

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X · Licence 78053 (MA)
Speech-Language Pathologist Taxonomy 235Z00000X · Licence 2228 (NH)

Record details

NPI number1821709668
Entity typeIndividual (Type 1)
GenderFemale
Credentials CCC-SLP
Sole proprietorNo
NPI enumeratedDecember 13, 2022
Last updated in NPPESDecember 13, 2022
Certification dateDecember 13, 2022

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