This document provides an overview of the Medicare Access and CHIP Reauthorization Act of 2015 (MACRA). MACRA aims to transition Medicare payments away from a volume-based fee-for-service system to one focused on rewarding high-quality and efficient care. It establishes two pathways for clinicians, the Merit-based Incentive Payment System and Alternative Payment Models, to receive bonuses or penalties based on quality metrics. However, implementation challenges remain regarding how quality will be defined and measured. Physicians will rely heavily on electronic health records, but interoperability between systems is still limited. Overall, MACRA seeks to reduce healthcare costs and link reimbursements to quality, but uncertainties remain during this transition period.