Prior to my surgery last month, I sent in a check to pay my deductible ($300) to the office my doctor is at. I returned from vacation last week to find a bill in the amount of $351.54 from the surgery center (separate the doctor's office). Their breakdown was $300 deductible, $51.54 co-insurance. I have been trying to get in contact with the lady in the billing department at my doctor's office since my return (Thursday last week). I finally get through to her today. I tell her that my deductible was paid in full prior to surgery and that I am being billed by the surgery center for the deductible as well. She pulls up my information and finds out that the doctor's office actually OWES me money in the amount of $292.12!? She said that the doctor's office didn't get hit with the deductible by the insurance, but actually the surgery center. The problem is I have to dish out my own $350 to the surgery center immediately because I won't have the check from the doctor before the bill is due to the surgery center.