Founder of the London General Practice, Dr Ettlinger also holds a Postgraduate Diploma in Obstetrics and Gynaecology and in Occupational Health. He was a Principal in NHS General Practice with the Family Health Service Authority for Kensington, Chelsea and Westminster from 1985 to 1991. 

He also lectured students at St Mary’s Hospital Medical School and, additionally, worked as an Assistant to the Professor of Surgery at the Westminster Teaching Hospital. 

Dr Ettlinger is a strong believer that General Practice should provide patients a personal service and continuity in their care. This is a topic on which he has published in the British Medical Journal, amongst other research papers.