Dr Tomlinson is a Consultant Nephrologist and Honorary Senior Clinical Lecturer at Imperial College Healthcare Trust. He is based at Hammersmith and Charing Cross Hospitals.

Dr Tomlinson is interested in rare conditions Retroperitoneal Fibrosis (RPF) and IgG4-related disease. He coordinates a monthly dedicated clinic plus a 1-2monthly multi-disciplinary meeting to discuss regional and national cases. He collaborates with colleagues in Oxford and the USA plus leads on a number of local research projects / and emerging clinical trials in this area.