|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. The Company has 190 affiliated physicians who provide maternal-fetal care to expectant mothers experiencing complicated pregnancies and obstetrical hospitalist services in many areas where its affiliated neonatal physicians practice. In January 2014, the Company acquired Summit Anesthesia Associates, P.A., a physician group practice primarily based in Summit, New Jersey. In January 2014, MEDNAX Inc announced the acquisition of Physicians Anesthesia Associates, P.A., a physician group practice primarily based in Baltimore, Md.