
Professional statement
Dr Allan Harkness is a highly acclaimed consultant cardiologist, based in Essex and Suffolk, with a special interest in CT coronary angiography and advanced echocardiography. Dr Harkness works privately at the Oaks Hospital, Colchester and the Nash Basildon Private Unit at The Essex Cardiothoracic Centre.
After graduating from the University of Glasgow in 1994, Dr Harkness went on to complete further specialist training in London and Glasgow, gaining accreditation in both general medicine and cardiology. During his research into heart failure, he worked with the British Heart Foundation on a nurse-led community heart failure service which became the NICE-approved standard of care nationwide.
Dr Harkness has been a consultant cardiologist at Colchester Hospital since 2006 and at the Essex Cardiothoracic Centre since it opened in 2007. In 2010, he became the clinical lead for cardiology at Colchester Hospital, where he has extensively developed their cardiac services. In 2017, he was appointed as Divisional Director for Medicine and Emergency Care for Colchester Hospital for which he served two three-year terms of office, covering the merger with Ipswich Hospital and the Pandemic. In 2013, he was appointed Deputy Associate Medical Director for Patient Safety for the Trust.
Dr Harkness is a core member of the Education Committee of the British Society of Echocardiography and lectures for national training programs. He also developed the BSE app EchoCalc, a key reference guide for cardiac physiologists worldwide. He has contributed to over a dozen national guidelines on echocardiography. For his contribution to education, research, leadership, volunteering and national reputation, he was awarded Fellow of the British Society of Echocardiography in October 2019. In recognition of his service and contribution to the advancement of echocardiography, he was presented with the 2021 BSE Lifetime Achievement Award.
Clinics

Oaks Hospital
Colchester, 120 Mile End Road , CO4 5XRMedical insurances accepted
Credentials
Professional experience
- 31 years of experience
- Consultant cardiologist, The Oaks Hospital, Colchester
Subspecialties
- Angina
- Arrhythmia
Professional memberships
- The Royal College of Physicians and Surgeons of Glasgow (Fellow)
- The Royal College of Physicians of London (Fellow)
Education
- MB ChB Glasgow University (1994)
- Level 2 CT Coronary Angiography, The British Society of Cardiovascular Imaging (2010)
Teaching posts
- Speaks at national training courses on CT coronary angiography and echocardiography
- Trains junior doctors in clinical cardiology, pacemaker implantation, coronary angiography, CT coronary angiography and advanced echocardiography
Publications and conferences
- A practical guideline for performing a comprehensive transthoracic echocardiogram in the congenital heart disease patient: consensus recommendations from the British Society of Echocardiography (2022)
- The assessment of mitral valve disease: a guideline from the British Society of Echocardiography (2021)
Prizes and awards
- Level 8 Clinical Excellence Award
- British Society of Echocardiography 2021 Lifetime Achievement Award
Languages spoken
- English
Reviews
- Would you recommend this doctor?
- Treatment of the doctor
- Treatment of the staff
- Waiting time
- Condition of facilities
- Really positive experience
- I felt very reassured with the information provided by Dr Harkness and the way things were explained
- Dr Harkness was very professional in his examination methods open and friendly. Carried out a detailed examination of my symptoms and medical history. The appointment started early and letter to myself and my GP sent the next day, he encouraged me to make a follow up appointment if required the appointment left me far more confident of my medical condition. I feel I can rely on him to advise and treat me in the future. The appointment was excellent
- Dr Allan Harkness was immensely knowledgeable, kind & helpful. He went above and beyond, taking time to explain everything clearly and I left with great confidence and comfort in the care given. I couldn't recommend any higher, having much gratitude for his wisdom and expertise.
- Excellent. Thank you.
- Listened very intently, and made a thorough explanation of the facts and going forward. Filled me with a sence that I was in good hands.
- Dr Harkness diagnosed my atrial fibrillation and flutter, and administered successful cardioversion at The Oaks. I cannot fault any part of my treatment. His air of quiet confidence is very reassuring; a thoroughly nice man. His team work well with him.
- I was made to feel relaxed all of the staff were very caring and extremely polite and professional
- Warm persona, friendly and yet very professional at the same time