
Clinical Leadership
The Network prides itself on being expertly clinically led and sees true clinical collaboration and input as the key to embedding successful change across the system. Our network hospitals and their staff and services are represented either by undertaking one of our three year funded clinical leadership positions or by participating as a contributor to one of our many working groups or workstreams.

Dr Giles Armstrong
About
Giles Armstrong was appointed as joint Clinical Director of the North Thames Paediatric Network in summer 2024, having held regional roles representing Paediatric Emergency Medicine for both Healthy London Partnership and then the North Thames Paediatric Network since 2019.
He is a consultant in Paediatric Emergency Medicine at the Royal London Hospital, where he was the Named Doctor for Children’s Safeguarding at the RLH from 2017-2022 and remains Deputy Named Doctor. He has been the Clinical Director for Integrated Paediatrics (incorporating General & Community paediatrics at RLH & MEH) since 2018.
Dr Armstrong trained in Medicine at Cambridge and the Royal London and then trained in Paediatrics and Paediatric Emergency Medicine in Newcastle, London and Sydney. After gaining his CCT he has worked as a consultant at the Lewisham Hospital and then The Whittington hospital, before returning to the RLH in 2017.’

Mr Nic Alexander
About
Nic Alexander was appointed Clinical Director of the North Thames Paediatric Network in summer 2024.
He is a consultant paediatric surgeon at Imperial College Healthcare NHS Trust and Chelsea and Westminster, and held leadership positions including head of specialty and trust lead for paediatric Major trauma, as well as role in the Northwest London Network. His clinical interests include surgery for children with complex haemoglobinopathies, specialised vascular access, and fertility preservation for children and young adults undergoing chemotherapy, and is part of the national group which successfully delivered NHSE commissioning of a national fertility preservation program.
He completed his paediatric surgery training in London, as well as fellowships at the Royal Marsden Hospital and at the MD Anderson, Houston Tx. He recently completed an Executive MBA with Henley Business School.