Dr Baker originally trained in medicine at Cambridge University and then the Royal London Hospital where he graduated in 1990. He did his renal specialist training in 1993 at Hammersmith Hospital in West London. He completed his PhD in 2001 (MRC training fellowship). He then moved to Leeds to take up a position as a consultant nephrologist in 2001. Since that time he has worked in all areas of nephrology but with a specialist interest in transplantation and tubulointerstitial nephritis. He was on the British Transplantation Society executive from 2011 to 2016 and is current BTS vice president. Since 2019 he has worked as Co-lead for Clinical Governance at NHSBT ODT.