There are some other types of supplement benefits that are often purchased on the supplemental plans by those with Medicare coverage. One of these includes emergency travel assistance. An emergency travel assistance policy can cover the cost of airfare, hotel room, and any additional medical expenses that are associated with a travel related emergency. An emergency travel assistance policy can also pay for the additional expenses that are related to pre-existing medical conditions that occur after a travel emergency. An emergency travel assistance policy is often only allowed to individuals who are authorized to obtain assistance in an emergency situation by a doctor that is delegated by the company that offers the Medicare supplement benefits.