Staff A-Z

We have passionate and committed staff dedicated to caring for the children at Great Ormond Street Hospital.

Dr Munaza Ahmed

Departmental Clinical Lead

Consultant in Clinical Genetics

Munaza has extensive experience in the diagnosis and management of hereditary cancer syndromes in both adults and children. She has been a Consultant Clinical Geneticist since 2011 and current…

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Dr. Oliver Marmoy

Dr Oliver Marmoy is a Specialist Clinical Scientist in Visual Electrophysiology & Ocular Imaging at Great Ormond Street Hospital (GOSH).

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Dr Pratheeban Nambyiah

I've been a consultant paediatric anaesthetist at GOSH since 2017. After medical school, I completed specialist training in Cambridge and Norwich, and took fellowships in Simulation and Medical Education (at the University of Ottawa Skills &…

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Dr Tazeen Ashraf

Consultant in Clinical Genetics and Genomic Medicine

Dr Ashraf joined Great Ormond Street Hospital as a substantive Consultant in Clinical Genetics in 2020. Dr Ashraf works closely with Perinatal teams in the region and runs a joint Fetal-Genetics cl…

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Dr Usman Ali

Dr Usman Ali is a Consultant in Paediatric Anaesthesia at Great Ormond Street Hospital. In addition to his training at Great Ormond Street Hospital he completed a further fellowship at Sickkids Hospital in Toronto where he won the R J Byrick Award f…

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