TRICARE for Life is the TRICARE health care plan that focuses on retired service members. This can include members that were part of the reserves as well. This is a good plan, as it requires Medicare Part B. After paying for Medicare Part B and ALL of the required premiums, your out of pocket costs will be very little. Since Medicare covers you as does TRICARE, you will not have to pay for any of the TRICARE benefits. Medicare covers you first, followed by any health insurance that you may have, and TRICARE takes care of the rest. In the event that you are in need of some medical service that does not happen to be covered by MEDICARE, such as if you need to get prescription drugs or something of that nature, TRICARE will determine what part you have to pay in the same way it does with all of the other TRICARE plans. If you are eligible for Medicare Part B and a retired service member, there is no reason not to get TRICARE For Life.