Conceptualising the doctor-patient relationship has been a central project for both medicine and medical sociology. This paper seeks to show how an understanding of the distributed nature of medical practice can help us research the decision-making process in doctor-patient encounters. I draw on a range of empirical studies of medical interaction, knowledge, technology and work in primary and secondary care. I describe the 'ethno-methods' (Garfinkel 1967) of patient-orientated medical decision making in order to highlight some of the fundamental facets of distributed decision making. Initially, I outline how decision making is an ongoing event that often evolves over multiple encounters. I then show how decision making is never just a solo, cognitive activity but rather distributed over a range of people. Finally, I outline how decision making is initiated, sustained and transformed over a range of encounters with both people and technologies. I argue that recognising the distributed nature of decision making shifts the focus from overly prescriptive visions of decision making to more plausible, albeit, more mundane sets of ideals. Centrally, a focus on distribution offers new opportunities actively to engage with, support and research decision-making-in-action.