Health Information Exchanges (HIEs) are systems that allow healthcare providers to share patient information electronically. This exchange of data helps ensure that doctors, hospitals, and other medical professionals have access to accurate and up-to-date health records, which can improve patient care and safety. By facilitating the secure transfer of information, HIEs reduce the need for duplicate tests and streamline the treatment process. They also enable better coordination among different healthcare providers, leading to more efficient and effective healthcare delivery for patients across various settings.