[1] He attended Bishop Douglass School in Finchley and London Hospital Medical College where he graduated with a degree in medicine in 1984.
[2] With his medical degree, Caulfield trained at St Bartholomew's Hospital where he developed a research programme in molecular genetics of hypertension.
[3] In 2002, Caulfield was appointed as the Director of the William Harvey Research Institute at Queen Mary University of London.
[4] In 2013, Caulfield was appointed as Chief Scientist for Genomics England, a non-profit company run through the Department of Health.
[1] In a June 2017 interview he claimed to be a workaholic with few hobbies, aside from walking, particularly in Germany, playing golf "badly" and gardening "often unsuccessfully".