Dr. Brian J. Cassidy is an internist in Scotch Plains, New Jersey and is affiliated with Overlook Medical Center Atlantic Health System. He received his medical degree from St. George's University School of Medicine and has been in practice for more than 20 years. Dr. Brian J. Cassidy has expertise in treating obesity, coronary artery disease, hypertension & high blood pressure, among other conditions - see all areas of expertise. Dr. Brian J. Cassidy accepts Humana, Cigna, Blue Cross - see other insurance plans accepted. Dr. Brian J. Cassidy is highly recommended by patients.