Either the Doc was giving the reason for the visit when making the appointment or as soon as you walked in the door. A reasonable person would then either have told you to look somewehere else when making the appointment, or have booted you out the door as soon as you walked in when stating the reason for visiting.the link posted states the doctor can refuse a treatment when in conflict but has to make sure other arrangements are made - ie a new appointment with a doctor who is known not to be a nutter (ie catholic, presumably).
I don't know if you have to pay your Doc's directly or whether it goes through insurance/health plan/whatever, but imo he's trying to get paid for services he had no intention of delivering.