Simmons does not have to share his medical records with the Sixers, but they don't have to pay him either because he is not performing and hasn't provided real medical evidence of the reason why. So as long as Simmons doesn't object to the fines, then he doesn't have to share anything with the Sixers. My guess is, just like with holding out, a few more missed pay checks and he is going to be a lot more forthcoming with his medical records so the money starts flowing again.