Methods are provided for biliary diversion. In one embodiment, a tubular member can be implanted within a patient by positioning a proximal end of the tubular member in the patients gall bladder, positioning a distal end of the tubular member in the patients intestine, and positioning a length of the tubular member extending between the proximal and ends thereof within the patients stomach. Bile can therefore be allowed to pass from the gall bladder into the tubular members proximal end, flow through the tubular member, and exit through the tubular members distal end to enter the patients gastrointestinal tract at the intestine.