Arthur A. Gianelli is the President and Chief Executive Officer of the NuHealth System (also called the Nassau Health Care Corporation), a $545 million academic medical center, safety net provider, and integrated health delivery system consisting of the Nassau University Medical Center, the A. Holly Patterson Extended Care Facility, four family health centers, and one school-based clinic. He has served in this position since June 1, 2006. Previously, Mr. Gianelli served as the Executive Vice President and Chief Operating Officer of the NuHealth System. He was appointed to this position on March 8, 2006.

 For the prior ten years, Mr. Gianelli served in senior executive positions for two Long Island municipalities. He was Deputy County Executive for Budget and Finance for Nassau County and Director of Operations for the Town of North Hempstead.

Mr. Gianelli earned a Bachelors Degree in History from St. John's University, a Master of Arts Degree in Political Science from Brown University, a Masters Degree in Business Administration from Dowling College, and a Masters Degree in Public Health from Columbia University.