Henry M 3d Thomas Iii MD 50 Sanitorium Rd Building D Tarrytown, New York, Phone: 845-364-2800 Doctor Category: Internal Medicine Profile Let this business know you found them on Westchester Magazine's Online Directories. Locations Tarrytown 50 Sanitorium Rd Building D Tarrytown, New York 10970-3555 Claim/Edit Listing