Differences in cost of VSG surgery

Hello New poster here...I am going to have my VSG surgery at DePaul Hospital in St Louis, mo with Dr Stephen Scott.... I am self pay as GHP does not address WLS or really any wellness programs.  My questions why does DePaul cost so much?  I have been quoted 25K for the surgery, 2 day hosp stay and 3 month f/u visits.  In KC and the Chicago area I have been quoted price of 12-15K with the same or more f/u months added.  And they are Centers of Excellence.  I want to stay in St Louis as driving for f/u visits would be difficult out of state. Just wondering I have been pleased with my care so far at DePaul, I dont wnat to change facility or providers , Just wondering  as I will be back in debt for a long time to pay this off and a few thousand off would help GREATLY!

 If they are all centers for excellency the difference in price is enough to make me drive 300 miles. I drove 3 1/2 hours for my plastics to save  money. My RNY surgeon is a good two hours away from me. I figure I have more time than money.

Know you don't want to change doctors now but really, you don't have that many follow-up visits after gastric surgery. Not like a band where you have to have fills. I think I had a two week and then a three month and then a one year. Kansas City wouldn't be too bad. I drove from Springfield to KC, Kansas for Plastics to save four thousand dollars and have had a few followup visits but sure not four thousand dollars worth. AND I have the most awesome plastic surgeon in the world.