Diabetes / Endocrinology Consultants

Dr Colin Johnston

Picture of Dr Colin Johnston

General information:

Name, qualifications:

Dr Colin Johnston MA MB BCh MD FRCP

Practising at:

Hemel Hempstead Hospital and St Albans City Hospital


Acute Physician with a specialist interest in Diabetes and Endocrinology



Special clinical interests:
  • Joint Pituitary Clinic
  • 2w Thyroid Cancer clinic
  • Clinical lead for chronic fatigue for Hertfordshire
Current posts:

Full-time NHS West Herts Acute Trust

Year of first medical qualification:


Current membership(s) of professional, national and regional bodies:
  • Diabetes UK
  • British Endocrine society
  • British Thyroid Association
  • Pituitary Foundation
  • American Diabetes Assoc
Contact details:
  • Direct telephone number: 01727 897858
  • Secretary's telephone number: 01727 897858
  • Secretary's email address: colin.johnston@whht.nhs.uk
Professional Profile:

Qualified at Cambrdige university via St George's London. Clinical training in London st St George's , Kings College and Hammersmith hospitals. Research training as MRC reseatch fellow at Kings College Hospital and MRC travelling fellow to Seattle USA.

Appointed in 1989 to establish a service in diabetes and endocrinology for the North-West Herts, Hemel Hempstead and St Albans and we are still trying!

I have a clinical interest in all aspects of diabetes and endocrinology that relate to direct specialist support to primary care. This has expanded to include erectile dysfunction and since 2005 a funded service for the management of chronic fatigue. In addition to general clinics in diabetes and endocrinology I run specialist clinics for diabetes in young-adults and diabetes and endocrine disorders in pregnancy.

I have always had and still do have an interest in service design and delivery and was clinical director of medicine from 1994-2002 and more recently am the clinical lead for the speciality in the Trust and clinical champion for diabetes for West Herts.

I am clinical governance lead for the speciality in the Trust, and I have an interest in assessment and support of colleagues both via the college as examiner, regional specialist advisor and invited service reviewer and Nationally as a panel member of the National Clinical Assessment Service. I also have an interest in teaching which includes being undergraduate tutor for medicine at Hemel and tutor and module lead for a new MSc in diabetes at the Univ of Beds and Herts PGMS.

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