Beneficiaries Using TRICARE Reserve Select
If entitled to Medicare Part A, you're not required to have Medicare Part B to purchase TRICARE Reserve Select.
Even though you aren’t required to have Medicare Part B, we strongly encourage you to enroll in Part B when you are first eligible. Although TRICARE treats you as an active duty family member while enrolled, Medicare doesn't consider your sponsor to be actively employed by the military. If you don't enroll in Part B when you're first eligible, you may be required to pay the Medicare Part B premium surchargeAn additional 10% for each 12-month period that you were eligible to enroll in Part B, but didn’t.
Learn more about TRICARE Reserve Select.