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Dr Sunil Zachariah

Practising at

Spire Gatwick Park Hospital
View availability

Clinic times

Tuesday: 8am - 12.30pm
Wednesday: 4pm - 8.30pm
The Montefiore Hospital
View availability

Clinic times

Saturday: 8am - 1.30pm

An initial consultation with Dr Sunil Zachariah is from £250.

Dr Sunil Zachariah

Dr Sunil Zachariah

Consultant Endocrinologist

MBBS, FRCP (UK)

Specialises in

  • Thyroid disease
  • Diabetes
  • Obesity
  • Pituitary disease

Also available for:

Virtual consultations:

Make an enquiry View availability

I am a Consultant Endocrinologist and General Physician with well-established private practices in Spire Gatwick Park Hospital, Horley and The Montefiore Hospital, Hove. 

I see patients with all types of endocrine, diabetes and general medical conditions, but I have a special interest in thyroid, adrenal, hyperparathyroidism, neuroendocrine lesions, hyponatremia, PCOS and obesity. I can also see patients with general medical problems, in particular unexplained fatigue. I have patients from across the country and abroad and pride myself in treating patients holistically.

I am also a full-time NHS Consultant in Surrey and Sussex NHS Trust. I completed my specialist training in London/KSS Deanery and was later awarded a Fellow of Royal College of Physicians (FRCP).

I did a period of research in Guildford in gut hormones and insulin related weight gain and I have published extensively and presented in national and international meetings. I regularly lecture in the UK and abroad. I also play an important role in academic training and teaching and I am the Programme Director for Foundation Doctors in Surrey and Sussex NHS Trust.

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General Medical Council Number: 4778600

Treatment information

Some of the principal treatments carried out by Dr Sunil Zachariah at Spire include:

Endocrinology and diabetes

Other treatments

  • Assessment of thyroid nodules
  • Dexamethasone Suppression Test
  • Diabetes work up (Type 1, Type 2, Gestational Diabetes)
  • Pituitary Function Tests
  • Synacthen Test
  • Thyroid work up (FT4, FT3, TSH, Antibodies)
  • At Spire Gatwick Park Hospital I treat children and young people from 16 to 18 years old 

Get in touch

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Additional information

Diabetic medicine
General medicine
Obesity
Parathyroid disease
Pituitary disease
Thyroid disease

Special clinical interests: Hypothyroidism (specifically T3 Conversion issues, T3 replacement), hyperthyroidism, thyroid nodules, thyroid cancer, endocrine disorders in pregnancy, adrenal and pituitary disorders, Addison’s disease, PCOS and hirsutism, obesity and bariatric work up, calcium disorders, hyperparathyroidism, diabetes and lipid metabolism.

Consultant Endocrinologist - East Surrey Hospital, Crawley and Horsham Hospitals

I enjoy travelling and also have a special interest in water colour painting.