Dr Nicholls is a specialist orthopaedic surgeon, treating all paediatric and adult knee conditions. He has particular interests in sports knee injuries, arthroscopic ligament reconstructions and management of arthritis in younger more active patients. He performs partial and total joint replacement surgery utilising computer-assisted navigation techniques.
In addition to his Australian specialist qualifications, he has worked and trained in Portland, Oregon and in Oxford, UK where he undertook higher levels of operative training in Paediatric Orthopaedics and Knee Surgery.
Dr Nicholls consults at Chatswood, Northern Beaches Hospital and the Westmead Knee Clinic.
He holds public appointments at the Northern Beaches Hospital and the Westmead Children's Hospital.
He has private admitting rights at The Mater Hospital, North Shore Private Hospital, Northern Beaches Hospital, Westmead Private Hospital.