When Is Open Season For Medicare Part B? 
Medicare Part B has several enrollment periods that you should be aware of . The enrollment period that you may qualify for may vary based on what your current situation is . The first Medicare Part B enrollment period that most people experience is the `` Initial Enrollment Period '' . This is a 7 month window that starts 6 months before the first day of the month in which you turn 65 and lasts 6 months after the month in which you turn 65 . If you enroll in Part B using this enrollment period your medicare Part B will start on the first day of the month you turn 65 or if you enroll after your 65 birthday your coverage will begin on the first day of the following month . The Part B `` General Enrollment Period '' is for individuals over 65 that do not currently have medicare part B or other creditable health coverage . This period is from Jan 1st through march 31st every year . If you enroll in part B using this General Enrollment Period your Part B coverage will start on July 1st of the same year . There is also a `` Special Enrollment Period '' that begins 63 days before and ends 63 days after the date you lost creditable health coverage from an active employer . You may also qualify for an 8 month Enrollment period that begins on the day you lose employment and/or employment based group health coverage . 