thanks for all the replies

i may pay them if there is too many hassle to argue.
i feel not fair, because:
- all doctors(diabtes/pedia/OB....)/services in the hospital are in network, except this doctor/group, i am not sure if it is a trap or not, because u have no choice in this kind of matter/time.
the hospital is a very good one.
- the doc did not operate right, especially, when they add medicine, my wife began to vomit...
- after the shot, my wife basically did not move, because it was not that painful at that time, so this 2nd shot is a waste, if they operated right the 1st time.