<prompt> Human: My family is all on my wifes dental insurance. The way her insurance works is they designate the office we go to the name of the office is on the insurance card itself. This was our first visit as a family, and my sons 1.5yo first time to the dentist ever. We called the office and made a family appointment for last October, went there, filled out the paperwork, paid each of our copays my son included, and were seen without any issues. My wife and I saw the same dentist, while our son went to see a different one I think they were considered the pediatric dentist.Yesterday we received a letter not a bill from the insurance company that my son was not seen by an in-network dentist, and so insurance wont cover his services totaling 250. Mind you hes only 1.5 years old, so they look at his teeth, give them a gentle hand-brushing, and send him on his way - all in just a few minutes. On the paper there were some comments saying Resubmit with referral from GP, but honestly the language was vague and not helpful.My wife called the insurance, and they basically blamed the office saying that they knew the doctor my son saw was not in our network, and it wasnt the insurance companys problem - even though our insurance card lists their office as our primary - not any specific doctor. They didnt say anything about resubmitting, but seemed to suggest it was a bait-and-switch by the office.We havent called the office yet nor received a bill from them, but I would like to be prepared ifwhen we do. What should our next steps be? Should we call the office and just see what they say? Wait and see if we get a bill from them? Who is even at fault here? My big fear is that this will slip into collections, as medical billing is so relaxed, so Id prefer to be proactive if possible.  <response>: Disclaimer that I know nothing about this in any professional sense...But what it sounds like to me is that the dentist youre son saw was not in network, while the card may not say it somwhere online has a list of specific dentist that they except.The comment in the letter that you talked about is basically giving you a way out of this. basically take the son to the doctor ask about getting his teeth cleaned and ask for a referral to the dentist that he saw and the insurance will then cover it. 