Which of the following is not considered an identifier under the HIPAA Privacy Rule?

The correct answer is age 75 because, under the HIPAA Privacy Rule, identifiers are defined as specific pieces of information that can be used to identify an individual. The rule outlines 18 types of identifiers, including names, geographic subdivisions, elements of dates, and biometric identifiers, among others. However, age is considered demographic information and is not classified as an individual identifier on its own unless it is used in conjunction with other specific identifying information that could tie it directly to an individual.

In contrast, the other options provided—vehicle license plate, street address, and Visa account number—are all examples of identifiable information that can directly link to a specific individual. Each of these contains specific details that could be used alongside other pieces of data to uncover the identity of a person, thus fitting the HIPAA definition of identifiable information.