I am in Idaho and I have medicare and Medicaid. The insurance biller at Dr. Valentines office said that yes Medicaid requires a 6 month doctor supervised diet. But in my case because medicare is my primary insurance and only requires a 3 month diet and Medicaid follows their lead. What really surprised me was that the 3 months don't have to be consecutive. I was intending to have a gastric bypass a year ago, but I changed my mind. I went back to the same surgeon this month (sept 2014) and was told since I have already been seen twice on a diet I only need to diet one more month!! I was very, very pleased to hear this to say the least. I have to see the dietician on the 30th and then my surgery will be scheduled!!