As previously reported, CMS announced a Medicare Shared Savings Program/Accountable Care Organization (ACO) “Investment Model” last fall to better coordinate care in rural and underserved areas where inadequate access to capital could hinder infrastructure development needed for successful population care management. On June 25, 2015, CMS announced that it is modifying the eligibility criteria for this pre-paid shared savings model to include Medicare Shared Savings Program ACOs that started on January 1, 2015 and to provide opportunities for larger rural ACOs to participate.