That’s too bad. Im a medicare insured under plan g. I didn’t have any issues with being accepted. I have heard of a lot of the advantage plans being rejected by certain hospitals/doctors unfortunately. While it may provide more benefits than original medicare, I don’t have to worry too much about being accepted anywhere. Vision, hearing, etc is all extra costs, but its a drop considering the alternative.
Wish you well in your ventures and health.
If you want some extra help on a plan for medicare I recommend Boomer Benefits as a liaison company. They have been great to work with getting set up on Medicare and navigating all the options.