Marc Zitin Top Doctor 100 East Lancaster Avenue Lower Merion Township, Pennsylvania, 19096 Phone: 610-644-6755 Company Name: Main Line Gastroenterology Associates Doctor Category: Gastroenterology Profile Let this business know you found them on Main Line Today's Online Directories. Locations Lower Merion Township 100 East Lancaster Avenue Lower Merion Township, Pennsylvania 19096 Claim/Edit Listing