A year ago I had pain in my foot when I ran, I went to a podiatrist and he ordered a three phase bone scan for me. I got the code 78315 from his office and I called my insurance company to see what it would cost before I scheduled the procedure. I was told it would be about 250.00. I had the bone scan done and then I got a bill from the hospital for 3000.00. The insurance company now says they only gave me an "estimate". The actual prescription from the doctor reads: DX R/o stress fx left 2nd metatarsal neck. R/X TC99 3phase bone scan - Limit to left lower extremity. I have been searching the web to find just an average cost for this and haven't been able to turn up anything. Can you help?