What Does A Medigap Policy Cover? 
Also known as ` Medicare Supplement ' insurance , this type of health policy helps to fill some or all of the financial `` gaps '' between what a person 's medicare insurance pays and what is left unpaid . For example , it can pay health care expenses incurred and unpaid by Medicare such as a deductible , co-payments & co-insurance . Medicare Supplement insurance does not cover dental , vision , long-term care and some other items . Check to see if you need a separate Medicare Prescription Drug Plan - Part D . You probably will . You need to be under Medicare parts A & B to qualify for a ` medi-gap ' policy . A lot of good carriers are able to sell this type of insurance in each State . Shop around . 