An initial consultation with Dr Colin Johnston is from £200.
Dr Colin Johnston
Consultant Endocrinologist
MA, MD, MB, BCh, FRCP
Specialises in
- Thyroid disorders including thyroid nodules
- Pituitary disorders
- Endocrine disorders including adrenal and sex hormones
- Diabetes
- Chronic Fatigue Syndrome/ME
Also available for:
Virtual consultations:
I did my clinical Training in London at St George's, King's College and Hammersmith hospitals. Then completing four years research training in diabetes at Kings College hospital and Seattle, USA.
I was appointed as a Consultant Physician with a specialist interest in Diabetes and Endocrinology at St Albans and Hemel Hempstead in 1989, establishing departments in both hospitals with a national reputation. These merged with Watford into West hospitals Trust where I was Medical Director from 2009-2013. Continue with out-patient clinics in Diabetes, Endocrinology and Chronic Fatigue /ME at St Albans.
I specialise in all aspects of Diabetes and Endocrinology. I was part of the Bariatric service at Spire. I established a joint pituitary clinic at St Albans. I am the clinical lead for diagnosis and therapy for CFS/ME for all of Hertfordshire.
Currently I see personally about 500 new referrals and nearly 1,000 follow up appointments per year. I score very highly in patient satisfaction surveys.
I am the specialty for Diabetes and Endocrinology in the North Thames Clinical Research Network promoting high quality clinical research. I currently the local lead investigator in three studies (1 diabetes and 2 endocrinology).
Throughout my career I have had major clinical management roles locally and nationally being the clinical lead for the Department, the Division of Medicine and eventually as Medical Director. Nationally through the Society of Endocrinology and Diabetes UK. Throughout I have championed high quality, responsive, clinical care.
General Medical Council Number: C2383859
Treatment information
Some of the principal treatments carried out by Dr Colin Johnston at Spire include:
Endocrinology and diabetes
- Cholesterol level test
- Diabetes test
- Hormone test
- Thyroid test
Get in touch
Important information about Covid-19 tests
Spire Harpenden Hospital is only able to provide Covid-19 tests to patients undergoing surgery at our hospital. Covid-19 testing or antibody tests are not available as a standalone service.
Additional information
Clinical interests
Thyroid disease
Pituitary disease
Endocrinology
Obesity
Diabetes
Qualification and professional memberships
MA / University of Cambridge / 1974
Master of the Arts
MB BCh / University of Cambridge / 1977
Bachelor of Medicine
MRCP / Royal College of Physicians / 1980
Member of the Royal College of Physicians
MD / University of Cambridge / 1985
Doctor of Medicine
FRCP / College of Physicians London / 1992
Fellow of the Royal College of Physicians
Professional memberships
BACME(British Association of CFS/ME)
Professional leadership
Previous Medical Director of West Herts Trust.
Served on the clinical committees of Diabetes UK and Society of Endocrinology
Currently specialty lead for Diabetes and Endocrinology for North Thames Research Network
Clinical lead for CFS/ME for Hertfordshire
Current NHS posts
Consultant Physician, Diabetes and Endocrinology, West Hertfordshire Hospitals NHS Trust
North Thames Clinical Research Network
Personal profile
I am now semi-retired from the NHS which allows me more time with less stress to continue with my clinical work being still the main provider of Diabetes and Endocrine services at St Albans and promoting better understanding and treatment for CFS/ME across all of Hertfordshire.
Contact information
| Telephone | 0800 585 112 |
| Private secretary | Jane Wilson |
| Private secretary telephone | 01582 460 129 |