This is from the Teamcare website (under My Documents, then Other Forms and Documents, then Retiree Health Plan Benefits and Medicare):
Avoid An Overpayment KNOW THE RETIREE HEALTH PLAN RULES The TeamCare Retiree Health Plan is only available to retirees and dependents who are not eligible for Medicare (Part A, B, or D) which includes early-Medicare due to a Social Security Disability Benefit. The Retiree Health Plan is not a supplement to Medicare nor does it coordinate with Medicare. You or your covered dependent(s) cannot receive TeamCare Retiree Health Plan benefits while being eligible for Medicare. ALERT If either you or your covered dependent(s) are receiving TeamCare Retiree Health Plan benefits and have: Medicare (Part A, B or D), or Early-Medicare due to a disability, or Applied for a Social Security Disability Benefit YOU MUST NOTIFY TEAMCARE IMMEDIATELY TEAMCARE WILL PURSUE ALL OVERPAYMENTS OF PAID CLAIMS AS A RESULT OF NOT RECEIVING NOTIFICATION OF ELIGIBILITY FOR MEDICARE To prevent an overpayment of paid claims and to comply with TeamCare and Medicare’s eligibility rules, you can notify TeamCare either by phone, email, or fax and indicate your Medicare coverage start dates shown on your Medicare card: CALL ONLINE FAX 800-TEAMCARE (832-6227) Use the secure online Message Center at MyTeamCare.org 847-518-9752 YOUR RETIREE HEALTH PLAN BENEFITS AND MEDICARE 8647 West Higgins Road ● Chicago IL 60631-2803 ● MyTeamCare.or