be given effect by a provider of services or organization to the same extent as an advance directive validly executed under the law of the State in which it is presented. (B) In the absence of knowledge to the contrary, a physician or other health care provider or organization may presume that a written advance health care directive or similar instrument, regardless of where executed, is valid. (C) The provisions of this paragraph shall preempt any State law on advance directive portability to the extent such law is inconsistent with such provisions. (D) Nothing in the paragraph shall be construed to— (i) authorize the administration of health care treatment otherwise prohibited by the laws of the State in which the directive is presented