Cancer Treatment Centers of America (CTCA) formally opened its second hospital in 1990. The Tulsa, Oklahoma location quickly established CTCA as a premier center in the Southwest. In 2005, CTCA opened a brand new, state-of-the-art Southwestern Regional Medical Center in Tulsa. The stunning, 195,845-square-foot hospital is Oklahoma’s only major hospital totally focused on treating cancer. In 2011, the hospital place third in the “Best Places to Work in Oklahoma” by the Best Companies Group. In 2012, Southwestern announced a 14,000 square foot expansion to include new surgical suite.