Enrollment Options 2023 Dental Plans Dental Blue 65 Preventive, Dental Blue 65 Basic, Dental Blue 65 Premier Enroll Online You can enroll in a Dental Blue 65 Plan at any time throughout the year. Enroll Now Call Consumer Sales Call 1-800-678-2265 TTY: 711 8:00 a.m. to 5:00 p.m. ET, Monday through Friday Mailing Address Consumer Sales Blue Cross Blue Shield of Massachusetts Enrollment Department P.O. Box 55011 Boston, MA 02205 Enrollment Forms Dental Blue 65 Preventive, Basic, and Premier Dental Blue 65 Enroll through Fax 1-617-246-8506