Dan Horner is a previous Professor of the Royal College of Emergency Medicine and a Consultant in Emergency and Critical Care Medicine at Salford Royal NHS Foundation Trust, in the UK.

Dan chairs the thrombosis committee at Salford and has led the service towards consistently improved outcomes over the last 5 years. These improvements have led to Salford being recognised as a national exemplar centre for thrombosis care and short listed for 3 national awards in 2017/18. Thrombosis care was also highlighted in the outstanding practice section of Salfords recent Care Quality commission report. 

In addition, Dan has been a committee member for multiple national thrombosis guidelines. These include the 2015 College of Emergency Medicine guidelines for thrombprophylaxis in lower limb immobilisation, the 2018 British Thoracic Society guidelines for the outpatient management of pulmonary embolism and the 2020 revision of the National Institute for Health and care Excellence (NICE) guidelines on venous thromboembolic diseases. Dan currently acts as a topic expert for the living NICE guidelines on managing COVID-19, NG191. 

Dan is also regional theme lead for Trauma and Emergency Care within the Greater Manchester Clinical Research Network and has an active thrombosis research portfolio. His key research interests are the management of isolated distal deep vein thrombosis, thromboprophylaxis for patients with temporary lower limb immobilisation after injury and risk assessment methods to determine the need for thromboprophylaxis in patients requiring hospitalisation.