He currently holds an NHS post at Cheltenham General  Hospital where he has been since 1991.

He works privately from  Nuffield Health Hospital Cheltenham.

He is a Fellow of The Royal College of Physicians (London) and The Royal College of Physicians (Edinburgh).

And he is a Royal College of Physicians MRCP (PACES) examiner.

As a University of Bristol Honorary Clinical Senor Lecturer he regularly teaches and examines medical students.

He lectures on Stroke, TIA, Hypertension and Syncope.

Dr Deering’s  schooling and undergraduate education was at Portora Royal School, Enniskillen and The Queen’s University of Belfast respectively. His first experience of research was in 1975 while he was completing an intercalated BSc Hons in Physiology. During that time he spent many happy hours testing in vitro vascular responses to drugs. This resulted in his first publication and, having graduated MB in 1979,  paved the way to his MD thesis in Clinical Pharmacology in 1986 and further publications. Following that, his clinical speciality training was at Addenbrookes Hospital, Cambridge. He moved to Cheltenham in 1991 as Consultant Physician.