You've got it wrong. Refusing to treat people in the state you are licensed in because of their political beliefs is fascism.Government control of private means of production is Fascism.
Suggesting that a doctor be driven out of business for voicing objection to complete government control of his professional life is Fascist.
If the Foo Shits....
Boycotting them is anyone's right.
Any proof he refused the service? Spit it out.