A computer system change at Anthem required new ID numbers for all participants effective March 1, 2022. All eligible participants should have the new ID cards by now. You and your eligible family members must use the new ID cards for all medical, dental, and vision services. For Medicare retirees, the new Anthem ID only applied to dental services. If claims are submitted with the old ID numbers, Anthem rejects them before they get to the Health Fund office. Please read the Explanation of Benefits (EOBs) closely to make sure all services are being processed through the Health Fund. If you need additional ID cards, call the Health Fund office at 262.549.9190.