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

Katlyn M Troisi, LICSW

Individual provider Mental Health Counselor · NPI 1477211563

Katlyn M Troisi, LICSW is a Mental Health Counselor in Waltham, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
In the registry since
2021
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

675 Main St
Waltham, MA 02451-0602
Phone: (508) 397-6307
Show map & directions

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

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 123478 (MA)

Record details

NPI number1477211563
Entity typeIndividual (Type 1)
GenderFemale
Credentials LICSW
Sole proprietorYes
NPI enumeratedDecember 6, 2021
Last updated in NPPESDecember 6, 2021
Certification dateDecember 6, 2021

Other providers in Waltham