Mr O'Toole is a Plastic Surgeon at the Royal Free NHS Hospital in London.
He is the among the world's most experienced ear reconstruction surgeons.
He has redefined prominent ear correction surgery with his minimalist "earStitch" procedure.
His private practice is based at 152 Harley Street and the Wellington Hospital in St.John's Wood, London.
He is a visiting surgeon at the Phnom Penh Children's Surgical Centre where he has set up a microtia service for Cambodia's children.
He has visited on three occasions to treat children with microtia and to assist the local experts in their care of burns and landmine victims, and of children suffering the consequences of poverty and war.
He has performed the "earStitch" procedure for over 1000 patients over 10 years. It takes 40 minutes, under local anaesthetic and dressings are not essential.
Unlike "incisionless" otoplasty techniques, "earStitch" gives permanent results.
He has inserted over 350 earFold devices. His simple earlobe reduction and total ear reduction allow for a rapid recovery and a natural result.
After training in Oxford and Sydney, Mr O'Toole completed the Royal College of Surgeons Plastic Surgery qualification (FRCS Plast) (for which he is now an examiner) and was then offered prestigious fellowships in Paris where he spent two years.
He is a full member of the British Association of Plastic Surgeons (BAPRAS) and a fellow of
After training in Oxford and Sydney, Mr O'Toole completed the Royal College of Surgeons Plastic Surgery qualification (FRCS Plast) (for which he is now an examiner) and was then offered prestigious fellowships in Paris where he spent two years.
He is a full member of the British Association of Plastic Surgeons (BAPRAS) and a fellow of the European Board of Plastic Surgeons (EBOPRAS).
He is on the UK Specialist Register for Plastic Surgery and is a founder member of the International Society of Ear Reconstruction (ISAR).
Mr O'Toole was awarded a Doctorate of Medicine (MD) for research into the use of gene therapy in surgery and has numerous presentations in the medical literature.
He presents at conferences worldwide and lectures to doctors training in plastic surgery.
Mr O'Toole featured in The Times list of international experts, with reference to his expertise in plastic surgery of the ear.
He has appeared on Loose Women, Embarrassing Bodies and on The One Show, on each occasion to advise on the treatment of patients with congenital ear deformity.
He has completed more than 40 marathons and 4 ironman triathlons.
He is fluent in spoken and written French.
Mr O'Toole travels frequently to underprivileged communities around the world.
Before his visits to Cambodia over the last few years, in the 1990s he worked as an assistant surgeon in Thailand and Malaysia and this has been followed more recently by visits to the Polynesian Islands and India.