I don’t know how you get them to do what you’re asking but they can refuse by simply saying no. And if you are insufficiently servile in accepting that they will find ways of punishing you.
“How do we find a doctor who will cooperate?” is a great way to find out what kind of secret things doctors and hospitals can do to fuck up your life for threatening to go around them or hurting their feelings.
Hating doctors for the state of healthcare is like hating fast food workers for the state of the fast food industry. Very few of them are actual owners and every franchise is a front for some rent extraction by an inheritor leech. Any remaining quality just means the owner class didn’t extract enough value from it.