First, I called Highmark and had them fax me a copy of my contract concerning WLS.. It basically tells you step for step what is needed and I went from there.
I asked the dr if I had a credit from services I had already paid for such as office/NUT visits. Since they had filed with my insurance and the insurance had already paid.
I also kept monthly copies of my 6m dr supervised diet. I did not leave the dr office without it. I requested a letter from my GP stating I was cleared for surgery. After, the six months, actually 7, I went home and faxed everything to the coordinator myself. I then called the insurance daily until I received a "yes, it in our system". Then, I called every other day requesting my status.
I work in the medical field so I know how annoying people can be, BUT as I tell my pt's it's your health/health care you can be as annoying as you want! You pay for it!! So be persistent:)
The hospital I told them I had met my deductible and I would pay $100.00 at my initial surgery THEN after insurance paid I would see if there was anything owed.