Joseph Nicholas Ponticiello MD 16 Guion Pl Sound Shore Medical Ctr Of Westchester Mamaroneck, New York, 10802 Phone: 914-365-3264 Doctor Category: Emergency Medicine Profile Let this business know you found them on Westchester Magazine's Online Directories. Locations Mamaroneck 16 Guion Pl Sound Shore Medical Ctr Of Westchester Mamaroneck, New York 10802 Claim/Edit Listing