
Catholic Health Services of Long Island is a major employer in the region with about 17,000 employees. President and CEO Alan D. Guerci has been with the system for 20 years, previously serving as a cardiologist and chief executive at several hospitals. He now oversees the largest faith-based health care system on Long Island, operating under the Roman Catholic Diocese of Rockville Centre. The organization has expanded its community partnerships by sponsoring the Suffolk County Marathon and collaborating with the New York Institute of Technology.