Pay attention to details and fill out the application carefully. Your answers are very important. If your insurance agent fills out the application for you, review the information to ensure it is correct. Remember that you do not have to answer any questions about your family history or take a genetic test. If you enroll during your Medigap Open Enrollment Period, the answers you give regarding your health cannot deny you from receiving coverage, or change the cost of your monthly premium. Visit ManhattanLife's Medicare Supplement for plan information.