Generally available: FHIR service integration with Azure Active Directory B2C

Now you can use the FHIR service in Azure Health Data Services with Azure Active Directory B2C (Azure AD B2C). This capability gives healthcare organizations a secure and convenient way to grant access the FHIR service in Azure Health Data Services without creating or comingling user accounts in their organization’s Microsoft Entra ID tenant.
Source: Microsoft Azure – aggiornamenti