Enrollment Options 2021 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. Dental Blue 65 Preventive Dental Blue 65 Basic Dental Blue 65 Premier 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 One Enterprise Drive Quincy, MA 02171-1754 Enrollment Forms Dental Blue 65 Preventive, Basic, and Premier Dental Blue 65 Enroll through Fax 1-617-246-3633