Professor Barbara McGowan

Endocrinologist in London


Professor Barbara McGowan areas of expertise:

Professional statement

Professor Barbara McGowan is a London-based leading expert in endocrinology. Her special interests include weight loss, bariatric medicine, polycystic ovarian syndrome, thyroid problems, infertility, adrenal disease and pituitary disorders

After graduating with a MA in Biochemistry in 1988, Professor McGowan worked in the pharmaceutical industry, and eventually went on to study medicine at the Royal Free Hospital, London, and graduated in 1998 with merits. Thanks to her research into the role of gut hormones and other neuropeptides in appetite control, she earned a PhD from Imperial College in 2007.  

Professor McGowan was appointed a clinical lecturer at Imperial College in 2007 and in 2009 as a consultant and honorary lecturer in diabetes and endocrinology at Guy’s and St Thomas’s, London. She now leads the obesity bariatric service at Guy’s and St Thomas Hospital and is a general medicine physician.

Outside of her clinic she is dedicated to research, particularly in the areas of gut hormones and remission of type 2 diabetes post-bariatric surgery. Her work has been recognised by NIHR/RCP who awarded her for her 'outstanding contribution to research' in 2016. 

She has published extensively in high-impact journals, including The Lancet and the New England Journal of Medicine. She practices at Guy's Hospital and BMI Bishops Wood while also serving as an honorary professor at King's College London. 

Diseases, Medical Tests and Treatments

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