Donna Hanrahan Gambaccini 777 Old Saw Mill River Rd Tarrytown, New York, 10591 Phone: 516-528-9297 Company Name: Regeneron Pharmaceuticals Lawyer Category: Tort: Personal Injury, Product and Medical Liability Profile Let this business know you found them on Westchester Magazine's Online Directories. Locations Tarrytown 777 Old Saw Mill River Rd Tarrytown, New York 10591 Claim/Edit Listing