Dr. Kolterman is exceptional! He's never in a rush, though it might be expected from a physician of his caliber! He is remarkably knowledgeable about diabetes, takes the time to answer all my questions in detail that I can understand. He explains treatment thoroughly, and follows up in a very timely manner. He is very kind and caring; it comes across when he speaks to you! He also has a great sense of humor, btw! His staff is very friendly too. I would recommend Dr. Kolterman to ANYONE! He's the BEST out there! :)