I am 100% permanently disabled with SMC home bound...I am totally taken care of with VA including community care, drugs, etc. Do I need to keep paying $145/mo for Medicare part B?
That's a choice only you can make. I use my Medicare part B as a supplement to my VA care and I use it often enough that it seems worth the expense. I enjoy the care I get from VA but it can sometimes be inconvenient and the copays and such for part B aren't that much. If you're confident that you won't need it, by all means do away with Part B.