Mr Bottrill obtained his medical degree from Southampton University in 1986 before going on to become a fellow of the Royal College of Surgeons of England (FRCS) in 1991. His initial ENT training was at the Royal National Throat, Nose and Ear Hospital (RNTNEH) and Great Ormond Street Children's Hospital in London.
Following this he undertook a one year fellowship at Tufts University Medical School in Boston USA which involved work on laser applications in ear surgery and work on treating Meniere's Disease. On returning to the UK he became a senior registrar at Cambridge and RNTNEH.
Mr Bottrill passed his FRCS(ORL) final ENT examination in 1996 achieving the gold medal for the highest score in his examination. One year later in 1997 he was appointed to his NHS consultant position at the John Radcliffe Hospital in Oxford and at Stoke Mandeville Hospital in Aylesbury.
Although providing a service in all areas of outpatient and surgical ENT practice, Mr Bottrill has a specialist interest in diseases of the ear. This includes childhood ear and hearing problems, surgery for ear infections, cholesteatoma, problems with the bones of hearing, otosclerosis and Eustachian tube problems. He also has an interest in the treatment of patulous eustachian tube problems and receives worldwide referrals.
Mr Bottrill also has extensive experience in the treatment of Meniere's disease and is a national expert in the use of gentamicin for Meniere's disease. He provides a regional service for bone anchored hearing aids. He is actively involved in the training of ENT doctors and teaches on national ENT courses, particularly in ear surgery. He is also on the council of the British Society of Otology and has been the ENT lead consultant for Buckinghamshire Hospitals NHS Trust. He has published papers on various aspects of ear problems.