Supernumerary Nipple Removal Cost?

I have a Supernumerary nipple located right below my right breast which I thought was a mole up until recently, when it started to have cyclical pain and it was determined by my doctor that it was a third nipple. It causes me pain when I wear a bra with an underwire and I would like to know the cost for removal, if insurance covers it or part of it, and if it should be performed by a plastic surgeon or a dermatologist. It is very small but the issue I have with it is the cyclical pain.