A physician doesn't need a reason to refuse to treat you, anymore than do you to stop seeing him or her.
Just as marriages can end in divorce, so can business, and/or medical relationships.
You'd spend oodles of your money funding a futile effort.
You certainly can have your very expensive day in some court somewhere, but it'll cost you far more than you'd ever gain.
Besides being an attorney, I'm also a licensed DO (osteopathic physician).
Curiously, DOs comprise fewer than 12% of the practicing physicians in the US.
What is a DO?
I refuse to prescribe whacky weed in any of it's many forms.
I don't practice medicine much these days, but do volunteer work for our local free clinic once a month. I don't know what possesses so many people to believe the wonders of whacky weed, but frankly, I don't care.