What identification is required for a physician on scene according to the provided guidelines?

The identification required for a physician on scene is a valid California physician's medical license. This specific requirement ensures that the person providing medical assistance is legally authorized to practice medicine in California. The physician's license serves as proof of the individual's qualifications, training, and the legal right to diagnose and treat patients within the state.

While other forms of identification, such as a state-issued identification card or a driving license with a photo, may confirm the identity of an individual, they do not verify the specific medical credentials necessary for a physician to operate legally in a clinical setting. A professional membership card may indicate affiliation with a medical organization but does not serve as proof of licensure to practice medicine. Therefore, the valid California physician's medical license is the most reliable and relevant form of identification in this context.