Laurence Miles Degelsmith MD 400 E Main St Northern Westchester Hospital Emergency Department Chappaqua, New York, 10549 Phone: 914-666-1200 Doctor Category: Emergency Medicine Profile Let this business know you found them on Westchester Magazine's Online Directories. Locations Chappaqua 400 E Main St Northern Westchester Hospital Emergency Department Chappaqua, New York 10549 Claim/Edit Listing