Our Experts

The Asthma Society of Ireland works with medical experts from a wide variety of fields. Our experts help us to ensure that the best interests of people with asthma are at the heart of all our work. Their knowledge and experience is key to ensuring all our materials and programmes are based on up-to-date medical guidelines.

Doctors and child

Marcus Butler

Marcus Butler


Medical Director, Board of Directors, 

Marcus Butler graduated in Medicine from NUI Galway, obtained his MD from the RCSI and completed fellowship training at New York-Presbyterian Hospital/Weill Cornell Medical Center. He was appointed to faculty there as an attending physician in pulmonary and critical care, in addition to having joint appointments at the departments of Medicine and Genetic Medicine at Weill Cornell Medical College.

He is now a consultant respiratory physician/lecturer at St Vincent’s University Hospital and University College Dublin, a Fellow of the Royal College of Physicians of Ireland, and is currently appointed as an external examiner for clinical medicine in Trinity College Dublin while also serving on the council of the Irish Thoracic Society. He established a severe asthma clinical service in SVUH and has co-authored over 40 peer-reviewed research publications and book chapters in the international medical literature.