If my doctor doesn't accept evolutionary theory, I have to wonder what else he doesn't accept. Can I trust him to advise on my childrens' vaccinations? Will he give me wife good advice on birth control? Did he just prescribe a homeopathic remedy for my high blood pressure?
I prefer dealing with professionals who use the best available evidence to make decisions in both their professional and personal lives. That way I don't have to wonder who he/she answers to at the end of the day. And that rules out MDs who don't accept the basic tenets of modern biology.