ASC joint ventures are not a new concept. What is new is the level of interest from external parties in ASC joint ventures, says Gregory DeConciliis, CASC, administrator of Boston Out-Patient Surgical Suites (BOSS) in Waltham, Massachusetts. “There was a time when ASCs were largely under the radar,” says DeConciliis, who serves as president of the Massachusetts Association of Ambulatory Surgery Centers (MAASC). “Everybody now seems to realize how important we are to healthcare, so they want to be involved.”