In a $3.1 billion deal, Universal Health Services Inc. is buying rival Psychiatric Solutions Inc., creating what it says is the nation's largest network of freestanding inpatient psychiatric facilities. UHS owns or operates 25 acute-care hospitals and 102 behavioral-health facilities in 32 states. PSI has 94 psychiatric facilities and is based in Franklin, TN. The combined company will have 221 healthcare facilities in 37 states and territories. Their total revenue in 2009 was $7 billion.