Medically retiring soon and told to apply for Tricare. If I have permanent VA Healthcare, what is advantage of applying for Tricare? Also, if have both, who do I go to for a referral for IVIG treatments. Currently, while on active duty, Tricare has been paying for them when referred by my military PCM. When retired, would I have to get my treatments at VA or could I request referral from Tricare to be treated by civilian clinic which I prefer. It is my understanding that VA is primary provider and Tricare secondary so assume I would have to get treatments at VA Hospital. Sorry this is so convulted.