Yes, it IS a Medicare thing. I have been filling them out once every 6 months for several years. It is to show Medicare that, indeed, you ARE using as many strips as you claim. What's to keep one for filling them out randomly? Nothing. This last time they requested 6 mos. worth of records, which I provided. It was a bother but I did it. I made an Excel sheet for this purpose and filling it out is not much of a hassle. It is modeled on the WalMart sheet that I used to fill out when I got supplies from them. Now I get strips through Animas along with my pump supplies.