His clinical interests include nuclear cardiology, heart valve disease, and preventive care. He is an in-network provider for Blue Cross/Blue Shield, Coventry, and Preferred Network Access (PNA), in addition to other insurance carriers. Dr. McMahon graduated from Loyola University Chicago, Stritch School of Medicine. His professional affiliations include Adventist Medical Center Bolingbrook, Adventist Health Partners (AHP), and Adventist Medical Center Hinsdale.