Okla. Stat. tit. 63, § 2555

A. A medical practitioner, in discharging his duty to a disabled person whom he has undertaken to examine or treat, shall make a reasonable search for an identifying device or identification card of the type described in subsection B, Section 3 of this act, and examine them for emergency information. B. A cause of action against a medical practitioner does not arise from his making a reasonable search of a disabled person to locate an identifying device or identification card, even though the person is not wearing an identifying device or carrying an identification card.