ORS § 127.575
A health care provider has no duty to give effect to any instrument unless the provider has received a copy of the instrument. Health care providers are entitled to assume the validity and enforceability of an advance directive if the directive on its face is in compliance with ORS 127.505 to 127.660 and 127.995, and the provider has not been given notice of a suspension, reinstatement, revocation, superseding document, disqualification, withdrawal, dispute or other legal infirmity raising a question as to the validity or enforceability of the directive. Health care providers are entitled to assume the validity and enforceability of any other instrument if the provider has not been given notice of a suspension, reinstatement, revocation, superseding document, disqualification, withdrawal, dispute or other legal infirmity raising a question as to the validity or enforceability of the instrument.
ORS 127.575