Medicare covers the bulk of your health care expenses after you turn 65. But Medicare's rules can be confusing and mistakes are costly. If you don't make the right choices to fill in the gaps, you could end up with high premiums and high out-of-pocket costs. Worse, if you miss key deadlines when signing up for Medicare, you could have a coverage gap, miss out on valuable tax breaks, or get stuck with a penalty for the rest of your life.
Here are 11 common Medicare mistakes you should avoid making:
