Physician assistants are nationally certified and state-licensed medical professionals who examine, diagnose, and treat patients under the supervision of physicians. They conduct physical exams, order tests, diagnose illnesses, set bones, prescribe medication, and assist in surgery. To become a PA requires a bachelor's degree, completion of a master's degree from an accredited PA program, passing a national certifying exam, and state licensure. Employment of PAs is projected to grow 30% by 2024 due to an increasing demand for primary care providers.