surgery bills what

So i get a bill in the mail for 25000 yep thats alot of money. apparently the doctors office had my insurence wrong they billed medacare first and then blue cross. well i knew they were going to and ??? them they said no your medacare is first. Well they were wrong lucky for me i did the stuff blue cross required and now just have to have my doctor send stuff over to surgeon. But blue cross is not happy about this. My doctors office knows its there fault and being reall nice about it but when push comes to shove i know it will still be on me. Loretta

Try not to worry too much I'm sure they're used to it and will work it out. Sure is annoying tho isn't it.