sentences:  In 2012, a Section 1115 Medicaid waiver designed a new type of plan called Coordinated Care Organizations, which included some of the preexisting organizations such as CareOregon, PacificSource, and FamilyCare as well as independent practice associations.In 2017, the second-largest Medicaid insurer, FamilyCare, shut down; its 100k Portland-area will largely be absorbed by another Medicaid insurer, Health Share.Health Share is related to CareOregon, which absorbed 80k members.