Dr. Clark is a 1982 graduate of Eastern Illinois University where he majored in Visual Communication and Graphic Design. He then went on to graduate from Northwestern University Dental School in 1989. He has been practicing dentistry for 34 years. Dr. Clark is a Diplomate of the American Board of Dental Sleep Medicine. Clark is a board-certified expert in treating patients who suffer from sleep breathing disorders. He has been treating patients with oral appliance therapy for 14 years. Dr. Clark has attended the Tufts University School of Dental Medicine Mini-Residency program in 2012-2013.