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Author: Patsy Newitt

ASCs and hospitals in many markets have a complicated relationship, with some hospitals opposing surgery centers despite looking to invest in their own centers.

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Tenet Healthcare's United Surgical Partners International is the largest ASC chain in the country both by centers and number of physicians. 

Editor's note: This article was edited to add clarification from the American Sociey of Anesthesiologists. The QZ modifier for anesthesia providers has become increasingly complicated as the policy for certified registered nurse anesthetists shifts in many markets, according to a…

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