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

Mr. Gary M. Trayhan, MSW

Individual provider Social Worker · NPI 1669806113

Mr. Gary M. Trayhan, MSW is a Social Worker in Billerica, Massachusetts. Practices as a sole proprietor. Registered with an NPI since 2013.

In the registry since
2013
What do these letters mean?
MSW — Master of Social Work
The graduate degree in social work.

See every abbreviation used in this directory →

Practice location Address checks out

5 Rolling Hill Rd
Billerica, MA 01821-2896
Phone: (978) 362-8258
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Social Worker (primary) Taxonomy 104100000X

Record details

NPI number1669806113
Entity typeIndividual (Type 1)
GenderMale
Credentials MSW
Sole proprietorYes
NPI enumeratedSeptember 1, 2013
Last updated in NPPESSeptember 13, 2013
Mailing address5 Rolling Hill Rd, Billerica, MA 01821-2896

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