Michael E. Schaeffer MD 29 Jones Avenue Chatham, New York, 12037 Phone: 518-392-8600 Company: St. Peter’s Internal Medicine; Albany Memorial Hospital, St. Peter’s Hospital - Albany Doctor Category: Internal Medicine Profile Let this business know you found them on Hudson Valley's Online Directories. Locations Chatham 29 Jones Avenue Chatham, New York 12037 Claim/Edit Listing