Dear Sgt. Shaft: Once a person turns 65, their TRICARE Prime or Standard coverage stops by law as TRICARE Prime and Standard have to stop after age 64. That means to continue TRICARE coverage, a person has to enroll in TRICARE for Life (TFL). TFL is a partnership between Medicare and TRICARE with Medicare acting as the primary payer and TRICARE acting as a Medicare Supplement. My husband is approaching his 65th birthday and with being priority "1" in the VA Heath Care System, I am wondering what your take is on Medicare B?