You must contact BCBSM if you need to change your address or phone number. All changes must be made in writing to Retirement Administration, e-mail or U.S. Mail.

E-mail: retirementadministration@bcbsm.com

U.S. Mail: Blue Cross Blue Shield of Michigan, Retirement Administration, Mail Code 0126, 600 E. Lafayette Blvd., Detroit, MI 48226