@countrylady : Please consider shopping locally for the electric wheel chair. You need to sit in one to make sure it fits your body : comfortable for the back, seat, leg length and foot placement. I am shopping for one: have bad back, one leg shorter. Not just in the store: see if they will let you try it outside - side walk, any grass areas.
The one that I need: Medicare will not pay because it folds up and easier to transport but will pay 80 % for one that is heavy and has to be taken apart in 4 parts to put in car. Major purchase.
I made a lot of phone calls to my insurance and Medicare. A doctors statement not always necessary because Medicare has a list of the wheelchairs they will approve and if the wheelchair that you prefer is not on the list: pay for it yourself.