No, you do not need to sign up for Medicare every year. Once you're enrolled in Medicare, your coverage will continue automatically each year. However, it's important to review your coverage annually during the Medicare Open Enrollment Period, which runs from October 15 to December 7. During this time, you can make changes to your Medicare coverage, such as switching between Original Medicare and Medicare Advantage plans, or changing your prescription drug coverage. It's a good opportunity to ensure that your current plan still meets your healthcare needs and budget. Annual enrollment in Medicare is not required, but reviewing your coverage during the Open Enrollment Period is highly recommended.