Dinker Belle Rai is a Board Certified Indian American vascular surgeon who serves as the Chairman of the Department of Surgery and as the Chief of the Department of Vascular Surgery / Vascular Laboratory at the Interfaith Medical Center, Brooklyn, New York. He is a visiting Clinical Professor at the Health & Science Center of the State University of New York in Brooklyn and a visiting Professor at the Rajiv Gandhi University in Bangalore, India. Rai is a Fellow of the American College of Surgeons and a Fellow of the Royal Canadian College of Surgeons. He is credited with developing the first ever method for retrograde catheterization of the venous tree. This invention was given a United States patent in 1988. Based on this patent, a company called The Ideas For Medicine, Inc. (now part of