If I could give this zero stars I would. This isn't based on medical treatment because my son received decent medical care. This is solely based on the poor customer service received from Yoli in the Billing Dept. Not only was she rude & demeaning, but she's trying to tell me I'm responsible for charges for a knee brace for my son that my late ex-husband agreed to 3 years ago. I didn't receive a bill for this until February of 2018 for charges incurred in January of 2015. She said "that's because we had a bad address". I corrected her letting her know it was a perfectly good address when my ex husband was still alive, but obviously since he is deceased, it is no longer a valid address. I was only disputing a charge for $45 that per my EOB from the insurance company was to be a contracted savings & disallowed. She said that because my ex husband signed the paperwork agreeing to pay the cost if insurance didn't cover it, I am now responsible. I told her if I had been there, I wouldn't have signed that paperwork as is. I would have made a notation stating "as per my insurance company's instruction, the provider is responsible for getting all necessary approvals up front" so as to avoid this situation down the line. She said "we don't need an approval for the brace because we know the insurance company will deny it." I told her with that being said, they should have given my ex husband the option right then & there to go to CVS & buy the brace for $10 instead of billing him $45 for it. At this point she just said "Well what are you going to do? I will make notes on the account." I told her I would pay the legal amount I am obligated to pay but I will not pay a charge that was a contracted savings amount according to my insurance plan at the time.