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

William Robert Dearstyne

Individual provider Counselor · NPI 1104545847

William Robert Dearstyne is a Counselor in Greenfield, Massachusetts. Practices as a sole proprietor. Registered with an NPI since 2022.

In the registry since
2022

Practice location Address checks out

102 Main St
Greenfield, MA 01301-3275
Phone: (413) 774-6252
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Counselor (primary) Taxonomy 101Y00000X

Record details

NPI number1104545847
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedAugust 25, 2022
Last updated in NPPESAugust 25, 2022
Certification dateAugust 25, 2022
Mailing address102 Main St, Greenfield, MA 01301-3275

Other providers in Greenfield