Christopher Lyons, MD Top Doctor 100 Lancaster Ave Exton, Pennsylvania, 19341 Phone: 800-789-7366 Company Name: Main Line Health Orthopedics & Spine Doctor Category: Orthopedics: Hip and Knee Profile Let this business know you found them on Main Line Today's Online Directories. Locations Exton 100 Lancaster Ave Exton, Pennsylvania 19341 Claim/Edit Listing