Radiation Oncology Institute - Wahroonga(located in the Sydney Adventist Hospital)Level 3, 185 Fox Valley RoadWahroonga, NSW, 2076Tel. 02 9487 9300Fax. 02 9487 9303 Appointments for the Orange clinic may be made by contacting the above number.Radiation Oncology Institute - Gosford41 William Street,Gosford, NSW, 2250Tel. 02 4349 8000Fax. 02 4324 6121Appointments for the Toukley or Toronto clinics may be made by contacting the above number.