John Wolk MD 95 Grasslands Rd Valhalla, New York, Phone: 914-493-7418 Company Name: Dr. John H. Wolk, MD Doctor Category: Pathology Profile Let this business know you found them on Westchester Magazine's Online Directories. Locations Valhalla 95 Grasslands Rd Valhalla, New York 10595-1652 Claim/Edit Listing