Dr Denby is a British and New Zealand trained General Practitioner who has been working in the field of skin cancer since 2000. He has a Masters degree in Skin Cancer from the University of Queensland. He is qualified in dermoscopy, diagnosis, biopsy and surgical techniques including skin flaps and grafts. He is an affiliated provider to Southern Cross for skin cancer checks and surgery at the Skin Institute Ponsonby, Silverdale Medical on the Hibiscus Coast and SkinSafe in Orewa. He also performs skin cancer surgery for Waitemata District Health Board and is on the Dermatology Subcommittee for Pharmacology and Therapeutics Advisory Committee.