Through the Interoperability and Patient Access Rule (https://www.cms.gov/Regulations-and-Guidance/Guidance/Interoperability/index), the Centers for Medicaid and Medicare Services (CMS) has required Medicare Advantage (MA), Medicaid, Children's Health Insurance Program (CHIP), and Qualified Health Plan (QHP) issuers on the Federally-facilitated Exchanges (FFEs) to make payer claims, provider directory and formulary data available via FHIR (hl7.org/FHIR) APIs.

For most states, this is the first publicly-facing API they have ever built. Your feedback on how you plan on helping Medicaid beneficiaries with claims, provider directory and formulary data as well as your input on what you want from States to help with your API development is incredibly important. Thank you!