Where find root word of version?
Both of these forms must be received by Social Root word of version before you can sign up for Medicare Part D, an Advantage Plan or a Medicare supplement. When these forms are received root Social Security, this will begin your 8 month Special Enrollment Period. If you miss this period, you can only sign up for Part B between January 1 and March 31. If you miss this period, you can only sign up for Part D between October 15 and December 7.