Seems to me that a professional should be responsible for is actions. I know I am, and if I do something wrong in a project that I shouldn't, I'm the one responsible for it (that's why they advise one to have a project insurance!)
Doctors have the added responsability of having your health and life on their hands.
In this case his wrong (or "decision" whatever you call it) is costing you!
I know that in Portugal if a doctor does something wrong, I can file a complaint with the Order of the Doctors, and depending on the case, the said doctor can miss his/her licence to practice.
Don't know how it works in Germany or Denmark for that matter.
There are those who believe that life here began out there...