Dr. Kreienberg specializes in arterial insufficiency, thoracic and infraiguinal aortic aneurysms, aortic and thoracic endografts, peripheral arterial bypass, carotid artery disease, venous disease, lymphatic disease, and all arterial venous and lymphatic operative and non operative therapies.

He completed both his surgical residency and vascular fellowship at Albany Medical Center, and his NIH postdoctoral fellowships in the Department of Surgery and Department of Molecular and Cellular Physiology at Albany Medical College. Dr. Kreienberg earned his medical degree from the State University of New York, Health Science Center in Syracuse, N.Y. He completed his undergraduate work at Muskingum College in New Concord, Ohio, with postgraduate work at the University of Rochester, N.Y.