Johnston County, Oklahoma. Johnston County is a county located in the U.S. state of Oklahoma. As of the 2010 census, the population was 10,957. Its county seat is Tishomingo. It was established at statehood on November 16, 1907 and named for Douglas H. Johnston, a governor of the Chickasaw Nation. Johnston County is part of the Texoma Region.
Texas Health Physicians Group is a group practice with 219 locations. Currently, Texas Health Physicians Group's 720 physicians cover 56 specialty areas of medicine.
Texas Childrenâs is affiliated with Baylor College of Medicine and is its primary pediatric training site. The hospital's award-winning medical staff consists of more than 1,580 board-certified, primary-care physicians, pediatric subspecialists, pediatric surgical subspecialists and dentists. In addition, Texas Children's offers a dedicated, highly skilled nursing and support staff of more than 6,000.