This answer depends on your supplemental insurance provider. Once you have paid your full supplement deductible, your supplement may pay part or all of the allowable balance for air ambulance transport. However, there have been cases where the supplemental insurance provider does not cover a remaining balance after Medicare has paid its portion. We recommend that you contact your supplemental insurance provider and specifically ask them how they cover air ambulance costs. Some seniors enroll in membership even if they have complete coverage, in the event that their insurance coverage changes or the claim is denied.