Our Practice The first physician to join the practice was Sante D. Bologna, MD, FACP, when Troy Gastroenterology was established in 1992. John R. Weber, MD and Richard T. Wille, MD, joined us in 1997, followed by Partha S. Nandi, MD in 1999 and M. Emin Donat, MD FRCPC, in 2000. The practice expanded again in 2002 with the addition of Leonard G Quallich, III, MD and Anezi E. Bakken, MD, MS. Our physicians are affiliated with both William Beaumont Hospital at Troy and William Beaumont Hospital in Royal Oak. For your convenience, endoscopic procedures are performed at both these facilities, and at our new Surgical Centers of Michigan, conveniently located in the Unasource Health Building, 4600 Investment Drive, Suite 270, Troy, Michigan.