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

Heather Cassill

Individual provider Clinical Social Worker · NPI 1558891499

Heather Cassill is a Clinical Social Worker in Newton, Massachusetts. Practices as a sole proprietor. Registered with an NPI since 2017.

In the registry since
2017

Practice location Address checks out

20 Fellsmere Rd
Newton, MA 02459-1307
Phone: (330) 840-0848
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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

Record details

NPI number1558891499
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedJune 13, 2017
Last updated in NPPESJuly 21, 2022
Mailing address20 Fellsmere Rd, Newton, MA 02459-1307

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