Carl Deirmengian, MD Top Doctor 825 Old Lancaster Road Lower Merion Township, Pennsylvania, 19010 Phone: 800-321-9999 Company Name: Rothman Orthopaedic Institute Doctor Category: Orthopedics: Hip and Knee Profile Let this business know you found them on Main Line Today's Online Directories. Locations Lower Merion Township 825 Old Lancaster Road Lower Merion Township, Pennsylvania 19010 Claim/Edit Listing