Dr. Harrington attended Middlebury College and Tufts University School of Medicine. He completed a Transitional Internship at Naval Hospital Portsmouth and then served for 3 years as a General Medical Officer (GMO) in the US Navy. After his GMO service he completed an additional year of Internal Medicine training at UNC Chapel Hill, then went on to Brown University where he completed a Residency in Psychiatry and a Fellowship in Behavioral Neurology & Neuropsychiatry (BNNP). He is board certified in General Psychiatry and Consultation-Liaison (CL) Psychiatry by the American Board of Psychiatry and Neurology (ABPN), and in Behavioral Neurology & Neuropsychiatry by the United Council of Neurologic Subspecialties (UCNS). He is a Distinguished Fellow of the APA, and a Fellow of the American Neuropsychiatric Association (ANPA) and the Academy of Consultation Liaison Psychiatry (ACLP). He currently serves as Director of the CL Psychiatry service and of Neuropsychiatry Education at Rhode Island Hospital (RIH), and as Director of the CNS-Psychiatry Clerkship and the CL Psychiatry Fellowship at Brown Medical School. He is a Professor of Psychiatry and Medicine, Clinician Educator, at Brown Medical School.
His areas of interest include neurocognitive disorders, catatonia, the interface of medical and cardiac disease, functional neuroanatomy, integrated medical-psychiatric care, medical education, and the neuropsychiatry of stroke, TBI, epilepsy, and autoimmune diseases.