Professor Hubbard's current main area of research interest is lung disease, including lung fibrosis and lung cancer. He is also involved in improving general practice data for research, coding free text data.
Professor Hubbard currently supervises four PhD students: two researching lung cancer health services, one researching lung fibrosis, and one researching falls. He teaches on the Advanced Epidemiology module for the Masters in Public Health/Epidemiology, Clinical Medicine on wards and in clinic. He is also a Advanced Life support (ALS) instructor on an intensive two day course on how to deal with cardiac arrests.