Charlton Location Posted on November 10, 2020 by ENT Associates of Worcester Charlton Location246 Southbridge RdCharlton, MA 01507 (508) 980-7074(508) 434-0821Tue-Wed: 8:30am-5:00pmThursday Hours: By Appointment Only.The Charlton location will merge with our Putnam office on June 24, 2026. Putnam remains open and seeing patients.