Which of the following is NOT commonly included in an EOB?

The correct choice highlights that a breakdown of calculated taxes on medications is not typically included in an Explanation of Benefits (EOB). An EOB primarily serves to communicate the details of health insurance claims, focusing on what the provider billed, what the insurance covers, and the patient's share of the costs.

Typically, an EOB will include the amount billed by the pharmacy, which shows what services or medications were provided. Additionally, it provides information on uncovered services and why certain treatments might not be reimbursed. Furthermore, it outlines the patient's financial responsibility, detailing what they need to pay after insurance has made its adjustments.

However, specific details regarding the breakdown of taxes on medications are not standard practice in EOBs. Tax calculations can vary widely and are often considered separate from the insurance reimbursement process. This makes the inclusion of such details less relevant for patients reviewing their EOBs.