|MEDNAX, Inc. (MEDNAX) is a provider of physician services, including newborn, maternal-fetal, pediatric subspecialties and anesthesia care. As of December 31, 2011, the Company's national network consisted of 1,839 affiliated physicians, including 996 physicians who provided neonatal clinical care, in 34 states and Puerto Rico, primarily within hospital-based neonatal intensive care units (NICUs), to babies born prematurely or with medical complications. In June 2013, MEDNAX Inc announced the acquisition of Anesthesia Group of Onondaga, P.C. In June 2013, MEDNAX Inc announced the acquisition of Neonatal Intensive Care Associates, a neonatal physician group practice based in Lubbock, Texas. In August 2013, MEDNAX Inc announced the acquisition of Holston Anesthesia Associates, P.C. In September 2013, MEDNAX Inc announced the acquisition of Northern Westchester Anesthesia Services, P.C. In October 2013, the Company announced the acquisition of Dayton Newborn Care Specialists, Inc.