He is conversant in French. Dr. Dennehy has a special interest in intensive care. He is affiliated with NSMC Union Hospital, Massachusetts General Hospital, and NSMC Salem Hospital. He attended medical school at the University College Dublin (UCD) School of Medicine & Medical Science. Dr. Dennehy is an in-network provider for Blue Cross/Blue Shield, Coventry, Humana ChoiceCare Network, and more. He has received the following distinction: **additional Specialties In Cardiac Anesthesia and Obstetric Anesthesia**. Dr. Dennehy is open to new patients.