These people will steal money out of you pocket and take food off the table for your children.
Dr. Kim is a cheat and a fraud, he and his staff will tell you your costs are one price and then, when all is said and done, they will come back and charge you 3 times that amount.
Good luck fighting with your insurance company to get it back. In the end you will have a collection agent bugging you incessantly about a bill you never agreed to pay.
Better to be toothless than deal with these crooks.