Sei Iwai, MD Top CardiologistTop Doctor 100 Woods Road Valhalla, New York, 10595 Phone: 914-909-6900 Company Name: Westchester Medical Center, Good Samaritan Hospital Doctor Category: Cardiac Electrophysiology Profile Let this business know you found them on Westchester Magazine's Online Directories. Locations Valhalla 100 Woods Road Valhalla, New York 10595 Claim/Edit Listing