A primary care provider (PCP) is a health care practitioner who provides preventative care and treats a variety of acute and chronic conditions. A PCP may be a doctor, a nurse practitioner, or a physician assistant. Your PCP is often the first health care provider you see when you are not feeling well. It is a good idea to establish a relationship with a PCP so you are not searching for one during an acute illness. In cases of serious medical issues, PCPs help you navigate a complex health care system by providing care coordination and making referrals to specialists as needed.