Connie,
I wouldn't worry about bili until it goes over 2. That's when my hepatologist even considers it high now. For one, he thinks I may have Gilbert's so it depends on conjugated vs unconjugated. For 2, having a liver disorder can change your normal.
Also, a few years ago, he thought my azathioprine was causing cholestasis. Since I didn't want to risk a flare, I refused to lower my dose but asked him if going on Ursodiol would help and it did...thinned my bile enough to lower my bili....maybe that's something you can ask about? I know it's another drug but...
I don't know about post transplant MELD but since many people with low lying liver issues can have low MELDs, I would assume it's possible that due to the fact that you have a liver disease and have had the trauma of a transplant that it would seem possible...