Stephen C. Ellen, MD is Clinical Director of the Sleep Disorders Program at The Counseling Center of Nashua in Nashua, N.H., the largest private group practice in New England with over 50,000 patients treated since 1992. His clinical practice at The Counseling Center of Nashua focuses on the diagnosis and management of sleep-related clinical conditions, including circadian rhythm disorders. His specialty includes the clinical assessment, polysomnographic evaluation and treatment of sleep disorders including insomnias, disorders of excessive sleepiness (e.g. narcolepsy), sleep related breathing disorders (such as obstructive sleep apnea), parasomnias, REM behavior disorder, circadian rhythm disorders, sleep related movement disorders including restless leg syndrome (RLS) and periodic limb movement disorder (PLMD), and other conditions pertaining to the sleep-wake cycle. Polysomnography (PSG) sleep studies are provided in partnership with St. Joseph's hospital in Nashua, N.H. when indicated during diagnostic workups. His special interest is in the pharmacology of energy and fatigue dysfunction related to sleep disorders, psychiatric illness and medical co-morbidities. The Sleep Disorders Program also provides sleep disorder focused cognitive behavioral therapy provided by doctoral level psychologists. Dr. Ellen is also Medical Director of The Counseling Center of Nashua and he continues to provide outpatient psychopharmacology and psychotherapy 1-2 days a week. This portion of his clinical practice focuses on the treatment of major depression, bipolar spectrum disorders, anxiety disorders, ADHD, OCD, psychotic disorders, eating disorders, PTSD, and substance abuse disorders.

Dr. Ellen graduated from The University of Pennsylvania summa cum laude with a BA in the biological basis of behavior and then attended Harvard Medical School, where he received his MD in 1989. He completed his adult psychiatry residency within the Harvard system at The Cambridge Hospital before pursuing a fellowship in psychodynamic psychotherapy at The Austen Riggs Center in Stockbridge, Massachusetts and a fellowship in electroconvulsive therapy at Columbia-Presbyterian Medical Center in New York City. His clinical training over the past 5 years has increasingly focused on sleep medicine with over 80% of his continuing medical education (CME) coursework on topics of sleep disorders. Dr. Ellen is Assistant Professor of Psychiatry at The University of Massachusetts Medical School with clinical privileges at Marlborough Hospital, a community hospital within the statewide University of Massachusetts healthcare system. He taught medical students from UMass Medical School during their third-year core clerkship in psychiatry at the Marlborough Hospital site from 1994 to 2003. Dr. Ellen is President and Medical Director of Berkshire On-Call Associates, a psychiatric consultant placement firm that currently has 30 psychiatrists working as DOCs during night and weekend shifts throughout Massachusetts. His research interests have included psychopharmacology of the treatment-resistant ECT patient; reward pathways in the dopaminergic medial forebrain bundle; and molecular biology research at the National Institutes of Health. He received his board certification from the American Board of Psychiatry and Neurology in 1997 and his recertification in 2007. He became board eligible for the ABPN subspecialty of sleep medicine in 2007.

Dr. Ellen has given over 2,300 presentations, primarily on topics of sleep medicine to medical professionals at local, regional, and national meetings since 1999. These have included large national CME programs (e.g., the 4-day Neuroscience Education Institute Global Psychopharmacology Congress and the 2-day weekend symposium-based NEI Academies with Stephen M. Stahl, MD, PhD; CME LLC's U.S. Psychiatric and Mental Health Congress; psychCME weekend conferences and dinner meetings, i3CME conferences, EXCEL CME weekend conferences), hospital/medical center based CME presentations, Web-based speaker training meetings, regional consultant and speaker training meetings, teleconferences, physician office-based lunch presentations, and dinner programs. Dr. Ellen's presentations include special focus on obstructive sleep apnea and the diagnosis and treatment of energy and fatigue dysfunction in medical and psychiatric practices; the hypothalamic sleep-wake center; advances in the understanding, diagnosis, and treatment of insomnia and sleep disorders; psychopharmacology in the ECT practice; remission in the treatment of major depression; anxiety disorders; bipolar disorder; and treatment challenges in schizophrenia including prolactinemia and metabolic issues. Recent peer-reviewed publications on the topics of sleep medicine, insomnia, and the treatment of energy and fatigue dysfunction have included articles in Clinical Psychiatry News, Drug Benefit Trends, and a CME LLC Web-based CME-eligible course on the herbal, FDA unapproved, FDA approved, and novel treatments of insomnia. He was the guest editor of December 2007 issue of The Carlat Report (focused on sleep medications) and he was interviewed twice in 2008 for ReachMD (XM radio channel 157), the first-ever national radio channel for medical professionals.