Recognizing that to practice medicine is not a natural right of any person but is a privilege granted by legislative authority, it is necessary in the interests of the health, safety and welfare of the people of this state to provide for the granting of that privilege and the regulation of its use, to the end that the public is protected from the practice of medicine by unauthorized or unqualified persons and from unprofessional conduct by persons licensed to practice under this chapter.
ORS 677.015