 Granet is a consulting psychiatrist at Memorial Sloan-Kettering Cancer Center, Clinical Professor of Psychiatry at Weill Medical College of Cornell University where he was named the first Teacher of the Year by the psychiatry residents and received that honor two subsequent times, a Lecturer of psychiatry at Columbia University College of Physicians and Surgeons, and an attending physician at New York Presbyterian Hospital and Morristown Medical Center where he established the Consultation Liaison Division.He founded the Center for Psychiatry and Psycho-oncology in Morristown, New Jersey, his private practice, where his group focuses on the treatment of all patients and those with cancer, in particular .He is a Distinguished Life Fellow of the American Psychiatric Association.