The MA Group Insurance Commission (GIC) does not require benefited employees to enroll in Medicare until retirement. Upon retirement, if a retiree is eligible for Medicare, he/she must enroll in Medicare Parts A&B in order to continue health insurance coverage through the GIC. This process applies to Medicare-eligible dependents you wish to provide GIC health insurance after your retirement as well. At that juncture the GIC will ovver you a Medicare supplment plan at the retiree rate. Reference Retirement for more information.