I have known John for 30 years personally and 25 years professionally as my dentist. John is the consummate professional dentist. He is up to date on new technologies; follows your dental health needs closely - letting you know your condition and options, but he will not brow beat you about it. John has a number excellent professional contacts, when I needed my wisdom teeth removed he referred me to an excellent oral surgeon. The office very clean and centrally located in downtown Clarendon Hills near the train station. Good parking and handicap accessible. His staff is very friendly and flexible.