O’FALLON, Ill.– HSHS Medical Group is pleased to announce that Dr. David Shervin, board-certified orthopedic surgeon, has joined the team at HSHS Medical Group Orthopedic and Sports Medicine, located at 670 Pierce Blvd., in O’Fallon.Dr. Shervin specializes in hip and knee replacement surgery, including complex primary and revision procedures, as well as nonsurgical treatment of adult hip and knee conditions and lower extremity fractures. He is committed to compassionate, patien...