Dr. Sonn received his Doctor of Medicine degree from Albert Einstein College of Medicine at Yeshiva University in 1991. Shortly after he first started practicing medicine Dr. Sonn began a concentration in urology. Dr. Donald Sonn began his medical residency at the Long Island Jewish Medical Center shortly thereafter and advanced his way to Chief Resident in 1996. Then in 1997 Dr. Donald Sonn has practiced medicine at the Urology group of Western New England in Springfield, Massachusetts where he is still practicing currently. He has also been appointed as the Chief of Surgery for Cooley Dickinson Hospital in Northampton, Massachusetts.