Dr Tim Nicholson graduated MB BS from The University of Sydney in 1989. After several years of general surgical training, his urological training was undertaken at at The Canberra Hospital, St Vincent's Hospital Sydney, Westmead Hospital Sydney and The Royal Hallamshire Hospital Sheffield, England. After achieving FRACS (Urol) in 1999, he moved to Orange to commence practice as a Urological Surgeon with specific interests in rural surgical practice, stone disease and oncology.

Dr Nicholson has served as a supervisor of surgical and urological trainees and is actively involved in medical student teaching. He has helped introduce new techniques in urological surgery to the region including neo-bladder formation after cystectomy, laparoscopic renal surgery and laser stone surgery.

Dr Nicholson is married with two daughters, one of whom has pursued a career in medicine.