The first of the 78 million baby boomers turned 65 on January 1, 2011, and about 10,000 boomers a day will be reaching that age between now and 2030. If you’re among those about to turn 65, then it’s time to think about Medicare. You become eligible for Medicare as soon as you turn 65, and delaying your enrollment can result in penalties. Medicare consists of four major programs: • Part A covers hospital stays. •