What Is My Medicare Effective Date?
For Original Medicare, Part A and Part B a simple way to determine your exact Medicare effective date is to refer to the lower right corner of your Medicare card or to refer to your letter from either the Social Security Administration or the Railroad Retirement Board.
If you have any questions about when your Medicare coverage starts, you can contact Social Security at 1-800-772-1213, Monday through Friday, from 7AM to 7PM. For TTY services, call 1-800-325-0778.
If you worked for a railroad, you can call the Railroad Retirement Board at 1-877-772-5772, Monday through Friday, from 9AM to 3:30PM. For TTY services, call 1-800-325-0778.
If you enroll into a Medicare Advantage or Medicare Prescription Drug Plan, the date your coverage starts can vary, depending on when you enroll and which election period you qualify for. For questions about your effective date on these types of Medicare plan options, you can contact the Medicare health or drug plan directly.