Original Medicare (Parts A & B) covers many medical and hospital services. But it doesn't cover everything. Many people are surprised to learn that prescription drugs aren’t covered. You can buy drug coverage through Medicare Part D, but it’s not provided by Part A or Part B. Here are some other services that are not covered by Original Medicare: • Dental exams, most dental care or dentures • Routine eye exams, eyeglasses or contacts • Hearing aids or related exams or serv