Why is REUNIONCare Provider Gateway/Portal different? The purpose of REUNIONCare's Gateway to is facilitate interoperability between provider, vendors, and community based services. The center of these communication is patient/consumer and caregiver coordination. This is not about billing. This is not about creating a streamlined workflow for the provider and their staff. This is about sharing information, care management and coordination that includes the active engagement of the consumer and the caregivers in the Circle of Care.