Thomas McKenna, MD Top Doctor 825 Old Lancaster Rd Bryn Mawr, Pennsylvania, 19010 Phone: 610-525-9570 Company Name: Bryn Mawr Medical Specialists Association Doctor Category: Gastroenterology Profile Let this business know you found them on Main Line Today's Online Directories. Locations Bryn Mawr 825 Old Lancaster Rd Bryn Mawr, Pennsylvania 19010 Claim/Edit Listing