Dr. Mark Klein is a native of Brookfield, Illinois. He graduated from the University of Illinois College of Dentistry with a dual degree of a B.S. and D.D.S. in dentistry. Over the course of his career, he has completed over 3,000 hours of additional training. His main area of expertise is adult restorative dentistry. Dr. Klein volunteers in his spare time, helping those in need of dentistry with limited resources to pay.