The Centers for Medicare & Medicaid Services will investigate a Florida hospital where several infant heart surgery patients died in recent years, CNN reports. Last week, a CNN investigation found the pediatric open-heart surgery program at St. Mary's Medical Center in West Palm Beach has a mortality rate triple the national average. "We take these allegations very seriously. CMS is actively investigating these complaints," Aaron Albright, a spokesman for the agency, told the publication in an emailed statement. Tenet Healthcare, which owns St. Mary's , did not provide a comment to CNN but St. Mary's officials told USA Today that it intends to cooperate with any investigation. Article