Shannon Costello
Ms. Shannon Costello serves as Executive Vice President and Chief Nursing Officer for NuHealth / Nassau Health Care Corporation. In this role, she provides leadership, governance, and education for the Department of Nursing. She is responsible for planning, organizing, directing, and overseeing all nursing functions. Ms. Costello’s responsibilities include day-to-day operations for over 1,000 staff members from Nassau University Medical Center, A. Holly Patterson Extended Care Facility, Nassau County Correctional Center, and Department of Social Services.
Ms. Costello joined the NuHealth team as a Critical Care Registered Nurse in 2006. As a Team Leader and Preceptor, she discovered a passion for teaching and education. This led to a position with the Nursing Education Department in 2018 where she served as Critical Care Nurse Educator. Ms. Costello directed and mentored staff in multiple units including ICU, ASU, PACU, Special Procedures, Burn Unit and Hyperbarics. Ms. Costello transitioned into the role of Assistant Director of Nursing Education, Performance Improvement, and Skin Integrity in 2021. In this role Ms. Costello developed, planned and implemented staff trainings and learning opportunities for all areas of the hospital. She became the Student Placement Coordinator at Nassau University Medical Center (NUMC) and a coordinator for NDNQI in August 2022. In January 2024 Ms. Costello became Deputy Chief Nursing Officer and was promoted to Interim Chief Nursing Officer in May 2024.
Ms. Costello provides executive leadership and strategic direction for the Department of Nursing Services. She works collaboratively with Nursing Leadership and Quality Improvement to promote patient safety and implement patient-centered, evidence-based standards of care. Ms. Costello’s focus is to enhance staff education and development, recruit and retain skilled nursing personnel, maintain department budgets and identify initiatives and opportunities to improve care. Ms. Costello is a knowledgeable nurse leader who brings excellence, integrity, and professionalism to her role every day.
Ms. Costello earned a Master of Science in Nursing with a concentration in Nursing Education as well as a Bachelor of Science in Nursing from Grand Canyon University. She obtained her Associate Degree in Nursing from State University of New York at Farmingdale. She also holds a Bachelor of Arts Degree in Psychology from Saint John’s University. She is a member of Phi Theta Kappa National Honor Society, Phi Eta Sigma National Honor Society, and PsiChi National Honor Society in Psychology. She is an active member in the National Society of Leadership and Success. Ms. Costello also serves on the Nurse Executive Committee for the Nassau Suffolk Hospital Council.