Can You Buy Into Medicare After Age 65? 
You can buy into Medicare after age 65 . There is a general enrollment period between January 1 and March 31 of each year during which you can sign up for Medicare . If you are not eligible for free Medicare Part A , the premium you pay may be higher than if you had signed up at age 65 . However , if you did not sign up for Medicare Part A and/or B due to being covered by a group health plan , you can enroll without penalty in the 8 month period after your quit working or the group coverage ends . 