Which of these is not a HIPAA identifier?

The correct answer is that a mother's maiden name is not considered a HIPAA identifier. HIPAA, the Health Insurance Portability and Accountability Act, outlines specific identifiers that must be protected to ensure the privacy of individuals' health information.

Identifiers under HIPAA include personal details like Social Security numbers, dates of birth, and email addresses, as these can link directly to an individual's identity and health records. The rationale behind designating these as identifiers is that they are used frequently in healthcare settings to access, manage, or transmit patient records and information.

While a mother's maiden name can be a piece of personal information used in identity verification processes, it is not explicitly included in the list of HIPAA identifiers. This list is focused on information that is commonly used to identify individuals in the context of health records, making the mother's maiden name less critical in this specific regulatory context compared to the others mentioned.