The enrollment for Medicare starts right before you turn 65. So, if it's three months before your birthday or in the window of seven months after you've turned 65, you are in "open enrollment." You could experience penalties if you delay your enrollment. To be eligible for enrollment, you must be a US citizen and legal resident for at least five continuous years. More than 24% of Maine residents (332,242 people) are enrolled in Maine Medicare . Compared to Maine, 21% of residents in New Hampshire (293,000 people) are enrolled in . It's also important to understand what is covered in Parts A, B, C, and D. What is covered by Parts A, B, C, & D of Medicare? Medicare Parts A and B are the plans that fall under Original Medicare. Part A coverage is for hospitalization, lab tests, surgery, home health care, etc. Park B coverage is for outpatient care, home health, diagnostic screenings, equipment, and services that are medically necessary. You'll aut