The London Clinic


  • Endocrine Surgery
  • General medicine

Sub specialties

  • Thyroid, adrenal, pituitary disorders, hormone deficiencies and specialist endocrine testing
  • Calcium, parathyroid, vitamin D, osteoporosis and bone metabolism
  • Obesity, bariatrics, polycystic ovarian syndrome (PCOS), hirsutism, fertility problems
  • Diabetes (type 1 and type 2) and complications, lipid disorders, hypertension, cardiovascular risk reduction
  • Genetic endocrine conditions and neuroendocrine tumours

Professional profile

Dr Chahal qualified from St Bartholomew's and the Royal London School of Medicine in 2001. He trained in endocrinology and diabetes at St Bartholomew's Hospital. In 2007, he was awarded the prestigious Medical Research Council training fellowship to undertake research in the field of pituitary tumorigenesis, resulting in several influential research papers in high impact journals. He has been awarded several national and international prizes for his research and clinical work. Additionally, he has written several textbook chapters.

He is the Lead Bariatric Physician and manages patients prior to, and after, bariatric surgery and pharmacotherapy in order to reduce their complication risks and optimise the health benefits of weight loss.

Dr Chahal is an experienced endocrinologist in all aspects of endocrinology and diabetes. He also has an interest in undergraduate medical education, and in 2016, he was appointed Director of Clinical Studies at Imperial College Healthcare NHS Trust (St Mary’s Hospital site).

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Current posts

  • Consultant in Diabetes, Endocrinology and General Internal Medicine
    Imperial College Healthcare NHS Trust

Current teaching posts

  • Honorary Senior Clinical Lecturer
    Imperial College, London

Medical training

Year qualified

Ages treated

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Clinic location

5 Devonshire Place
London W1G 6HL
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Clinic times

Monday: Evening


Lisa Shaw
01895 628899