Primary care doctor greatly resembles that tradition of having one medical practitioner handle all basic medical needs. A primary care physician (PCP) is a physician who provides both the first contact for a person with an undiagnosed health concern as well as continuing care of varied medical conditions, not limited by cause, organ system, or diagnosis. The term is primarily used in the United States. In the past, the equivalent term was general practitioner in the US; that is still the term in the United Kingdom (and in many other countries).