After years of being shielded from most of the managerial and organisational changes in health care, primary care is going through a period of change in many countries. Much of the research that has been done in primary care, in common with that in secondary care, puts at the centre of its methodology the concept of professionalism. However, there are other ways of theorising medical work, and using a wider range of theoretical 'lenses' when planning research into the impact of change will enhance and enrich that research. Viewing primary care physicians as 'workers', concerned, like other workers, with constructing understanding of what they do that helps them cope with pressures and uncertainties, shifts the focus of research questions away from issues of professional status towards the practical ways in which they deal with change in their local contexts. Research using this theoretical approach may be able to explain phenomena that other, more broad-brush approaches cannot.