Oregon Revised Statutes Occupations and Professions § 676.310

(1) Any person authorized by law to order laboratory testing may charge a reasonable fee for all laboratory and other specialized testing performed by the practitioner or by a person in the practitioner's employ. In addition, the practitioner is entitled to charge a reasonable fee for collecting and preparing specimens to be sent to independent persons or laboratories for testing, and for the preparation of the billing to the patient for the test. However, a practitioner shall not mark up, or charge a commission or make a profit on services rendered by an independent person or laboratory.

(2) A practitioner shall prepare an itemized billing, indicating the charges for each service rendered to the patient. Any services rendered to the patient that were performed by persons other than those in the direct employ of the practitioner and the charges therefor shall be indicated separately on the patient's bill.

(3) Failure to comply with the requirements of this section shall be considered to be unprofessional conduct and may be subject to disciplinary action by the appropriate licensing board.

(4) As used in this section, “practitioner” means a person licensed to practice medicine, dentistry, naturopathic medicine or chiropractic or to be a nurse practitioner.