 The Saint Francis Health System owns several hospitals with a central location at Saint Francis Hospital in the southern part of the city . The facility contains 700 doctors and 918 beds , and with more than 7 @,@ 000 employees , the network is the second largest healthcare employer in the state . The health system also operates a heart hospital , which was named by General Electric in 2004 one of the most advanced heart hospitals in the nation . St. John Medical Center , located in an 11 @-@ story midtown center , employs nearly 700 doctors . Other networks , such as Hillcrest Health System , operate a number of facilities in varying sizes . Beginning in 2007 , the city elected to renew a five @-@ year contract with EMSA for ambulance service after a period of consideration to switch to the Tulsa Fire Department for providing such services . 
