A GI doc insists that ACT model is more expensive than solo CRNA because parient gets two bills from anesthesia. Pretty damned sure he is wrong. As I understand it the billing modifier (QX, QZ) is different and the total anesthesia bill to patient should be the same even if there is separate billing from anesthesiologist and CRNA. I dont do my own billing. Can someone in PP (or do their own billing) give me the lowdown on this?