I'm not satisfied at all. They sent me a bill for ...

I'm not satisfied at all. They sent me a bill for $1950 for a simple visit that took just 40 minutes and the doctor just asked us a couple of questions about the problem of my son , that's it. 1950$ !!!!!!!!! It doesn't add up this amount for a simple visit. I just want to know isn't any supervising on the bills.?