Worcester Medical Center. Geriatrics, Infectious Diseases, Internal Medicine 123 Summer Street Suite 270 Worcester, MA 01608 phone (508) 363-5670 fax (508) 363-7284. Thoracic Surgery 123 Summer Street Suite 270 N Worcester, MA 01608 phone (508) 363-5670 fax (508) 363-7284. Neurology and Sleep Medicine 123 Summer Street Suite 695 N Worcester, MA ....