In addition to English, Dr. Kessler (or staff) speaks Hebrew and Dutch. Areas of particular interest for Dr. Kessler include cancer surgery, second opinions, and gastrointestinal surgery. He is professionally affiliated with North Shore University Hospital (NSUH), New York Methodist (NYM) Hospital, and Lenox Hill Hospital (LHH). He graduated from the University of the Witwatersrand, Johannesburg and then he performed his residency at The Charlotte Maxeke Johannesburg Academic Hospital. He honors several insurance carriers, including Blue Cross/Blue Shield, Empire BlueCross BlueShield, and MagnaCare.