At What Age Does Medicare Start? 
For most people , Medicare starts the 1st day of the month you turn age 65 . You can sign up for Medicare Part A & B which covers about 80 % of the costs of care . You can also sign up for a Medicare Supplement plan -LRB- Medigap -RRB- to cover the difference . Medicare along with a Medicare Supplement is great health insurance . In addition , you can get a Medicare Part D plan to cover your prescription needs . 