People online have been attempting to poke holes in the science of interstellar.
A primary care physician is usually the first medical practitioner contacted by a patient because of factors such as ease of communication, accessible location, familiarity, and increasingly issues of cost and managed care requirements.
A referral is authorization from the patientâs Primary Care Physician (PCP) for the patient to see a specialist. A PCP is a family doctor, internist, or pediatrician. You only need a referral if your insurance company requires you to have one. The best way to know for sure is to contact your insurance company.