I miss Universal Healthcare

I've have health insurance in the states for about 9 months now and I have to say, I'm disappointed.  The two reasons I've had to use my insurance are chiropractor work and dental.  With both places I went and had work done and left not having a clue as to what my insurance would cover.  I filled out forms at the respective offices and they said they would go through my insurance and then I would receive a bill.  I don't know about you but that isn't very comforting.  Mostly because the bills I received were larger than I expected and also difficult to understand.  In Japan, I went to the doctor or dentist, had work done, paid a bill, and that was it.  Here it's a waiting game where I hope I can afford the bill that's sent to me.