Facilitating the secure and timely access of patients to their health data has been identified as a key component in empowering patients to make informed decisions about their healthcare. The Centers for Medicare & Medicaid Services established the CMS Interoperability and Patient Access final rule in May 2020 as part of the initiative to improve patient access to information that supports their healthcare. The FHIR 4.0® CMS-compliant API described in this site allows access to Connecticut Department of Social Services' Provider search API.