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; however in the United Kingdom and other countries the term general practitioner is still used. With the advent of nurses as PCPs, the term PCP has also been expanded to denote primary care providers.

In the medical profession, a general practitioner (GP) or family physician is a doctor who is a consultant in general practice. GPs have distinct expertise and experience in providing whole person medical care whilst managing the complexity, uncertainty and risk associated with the continuous care they provide. GPs work at the heart of their communities, striving to provide comprehensive and equitable care for everyone, taking into account their health care needs, stage of life and background. GPs work in, connect with and lead multidisciplinary teams that care for people and their families, respecting the context in which they live, aiming to ensure all of their physical and mental health needs are met. They are trained to treat patients to levels of complexity that vary between countries. The term "primary care physician" is more usually used in the US.