Dr Ahmed Massoud is a highly-reputable London-based consultant paediatrician & endocrinologist. His areas of expertise include growth disorders, pubertal problems, and thyroid disorders. He operates from a number of top clinics in the capital, both in the NHS and privately, including the Harley Street Childrens' Hospital and the Portland Hospital. Outside of his clinic, he has been serving as an honorary senior lecturer at Imperial College, London, since 1999. He has been widely published in the field of paediatric endocrinology and has been invited to speak at numerous national and international medical conferences. Dr Massoud is the immediate past Chairman for the RCPCH Speciality Advisory Committee for Paediatric Endocrinology and Diabetes.