How much of what we think is genuinely our own, and how much depends on the influence of others? This chapter explores this question within doctor-patient interactions through the lens of Andy Clark and David Chalmers’ Extended Mind Theory (EMT). The discussion unfolds in four interconnected sections, offering a novel perspective on cognitive processes shared between doctors and patients. The first section introduces key concepts from EMT, on which section two builds a logical sequence on how the cognitive coupled system within the doctor-patient relationship mirrors, detailing the mental processes of each participant; it, thus, argues that the physician’s and patient’s minds constitute a cognitive coupled system. Furthermore, the third section identifies patients’ typologies according to their cognitive determinants to conclude that a one-size-fits-all practice is often inadequate. The last section synthesises these insights, drawing a parallel between the Inga-Otto thought experiment and the doctor-patient’s cognitive dynamic; it proves that a patient’s mind is extended to the physician, becoming physician resourced, much like Otto’s mind extended on the notebook. Conversely, when physicians become patients, their minds may function as brain resourced, akin to Inga, with partial reliance on their attending physician and mainly on theirs.