<<Disclaimer: Verify this information before applying it to your situation.>> Does anyone have the name (or names) of gastroenterologists familiar with celiac disease in Salt Lake City. We recently convinced my father to have the celiac antibody tests done. They came back positive. Yet, his gastroenterologist told him he had too many other medical issues (carcinoid syndrome, a recent artificial heart valve, diabetes) to be concerned with confirming a celiac diagnosis with a biopsy or even trying a GF diet. As a result of the mechanical heart valve, he is taking coumadin. My father believes the biopsy would be too dangerous under these circumstances. Has anyone had the biopsy done while on blood thinners? Thank You! Sue Grube P.S. - My father also has a family history of celiac disease - my 6 year old son was diagnosed 2 years ago.