 FRANKLIN, Tenn.--BUSINESS WIRE--Acadia Healthcare Company, Inc. NASDAQ: ACHC today announced that it has formed a joint venture with Lutheran Health Network of Indiana, LLC, one of Indianas premier, integrated healthcare delivery systems. Lutheran Health Network of Indiana selected Acadia Healthcare, the nations largest stand-alone behavioral healthcare company, as its partner for a new behavioral health hospital to address the growing need for accessible, high-quality behavioral health s 