Nicholas DeBellis, MD

Orthopedic & Sports Medicine Specialist

Dr. Nicholas DeBellis is a leading orthopedic surgeon and sports medicine specialist, currently serving as the Medical Director and President of South Island Orthopedics. Based in Cedarhurst, NY, and dedicated to the Long Island community, Dr. DeBellis has built a strong reputation for treating sports-related injuries, car accident injuries, and work-related injuries in both adults and young children.

A Sports Medicine Specialist

Dr. DeBellis completed a Sports Medicine Fellowship at the University of Southern California, where he also served as an assistant team physician for USC’s football and women’s volleyball teams. Currently, he is the team orthopedic for Molloy University Athletics, providing care for athletes of all ages and activity levels. His practice offers trauma care for sports injuries, car accidents, and work accidents, ensuring comprehensive treatment for athletes, weekend warriors and those with no-fault insurance and workers’ compensation cases across Long Island and New York City.

An Expert Orthopedic Surgeon

Board-certified by the American Board of Orthopaedic Surgery, Dr. DeBellis brings specialized expertise in arthroscopic procedures and trauma care. His training includes an Orthopaedic Surgery Residency at the Icahn School of Medicine at Mount Sinai, with rotations in trauma and oncology at Memorial Sloan Kettering Cancer Center. His research contributions include studies on opioid reduction and knee injury management, reflecting his commitment to enhancing patient outcomes, managing complex orthopedic cases while reducing recovery times and focusing on patient education.

Serving Orthopedic and Sports Medicine Patients in New York

Dr. DeBellis treats patients in Cedarhurst, Rockville Centre, and neighboring Long Island and Queens areas. He holds privileges at Mercy Medical Center, St. Joseph’s Hospital, East Hills Surgery Center, Optum DayOp Surgery Center, and North Queens Surgery Center. Known for his compassionate care, surgical expertise, and dedication to each patient’s unique needs, Dr. DeBellis is a trusted choice for athletes, car accident victims, injured workers, and families seeking orthopedic care for children and adults across Long Island and the New York 5 boroughs.

To Request An Appointment

Please Choose One of Our New York Locations:

Cedarhurst Location:  657 Central Ave, Cedarhurst, NY 11516

Rockville Centre Location:  2000 N Village Avenue, Suite 311, Rockville Centre, NY 11570