Evidence of coverage

Blue Cross Blue Shield of Massachusetts Disenrollment Rates

In 2023, 15.4% of subscribers chose to leave their medical plan, and 0.06% were involuntarily terminated by Blue Cross. Also, 7.9% of subscribers voluntarily and 0.3% were involuntarily disenrolled from their dental plan with Blue Cross.

If you have received your annual Evidence of Coverage (EOC) letter by mail, you can learn more about your plan and access your online EOC resources after creating an account or signing into MyBlue. Blue Cross Blue Shield of Massachusetts members may request a paper copy of their EOC at any time by calling 1-888-608-3670.

After you sign in, select Documents in My Inbox to review or download your Subscriber Certificate and Riders.

In some cases you may need to contact your employer to request a copy of your EOC.