Social Services Department 500 Main St Hyannis, MA 02601 Phone : (508) 760-0200 Business Category Administration Of Social Human Resource & Income Maintenance Programs Mass Commonwealth Of--social Servs Dept, Southeast Regional And Area Offices, Cape And Islands Area 500 Main St Hyannis, MA 02601 Phone : (508) 760-0200 Business Category Government Offices-State Government Offices State & Local Government Offices & Public Schools