Staff A-Z

We have a passionate and committed staff dedicated to caring for the children at Great Ormond Street Hospital. To find out more about a member of staff, their clinical specialty or to contact them, please use the search below.

Mark Gaze

Dr Mark Gaze has been a Consultant Clinical Oncologist at Great Ormond Street Hospital (GOSH) since 1993. He is also a consultant at University College Hospital, where radiotherapy for children from GOSH is delivered.

Paul Gissen

Dr Paul Gissen has been an honorary Consultant in Paediatric Metabolic Diseases at Great Ormond Street Hospital and Wellcome Trust Senior Research Fellow in Clinical Sciences at the UCL Institute of Child Health since March 2011.