Oregon Revised Statutes Occupations and Professions § 677.137

(1) A person may not engage in the practice of medicine across state lines, claim qualification to engage in the practice of medicine across state lines or use any title, word or abbreviation to indicate or to induce another to believe that the person is licensed to engage in the practice of medicine across state lines unless the person is licensed in accordance with ORS 677.139.

(2) ORS 677.135 to 677.141 do not apply to a physician engaging in the practice of medicine across state lines in an emergency, as defined by rule of the Oregon Medical Board.

(3) ORS 677.135 to 677.141 do not apply to a licensed physician located outside this state who:

(4) ORS 677.135 to 677.141 do not apply to a licensed physician located outside this state who has an established physician-patient relationship with a person who is in Oregon temporarily and who requires the direct medical treatment by that physician.