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Evaluation of the Accountable Care Organization Investment Model: AIM Impacts in the First Performance Year

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Evaluation examining the first year performance of the 47 Accountable Care Organizations (ACOs) participating in the ACO Investment Model (AIM), which tests the use of prepaid shared savings to encourage new ACOs to form in rural and underserved areas (Test 1) and to encourage current Medicare Shared Savings Program ACOs to transition to arrangements with greater financial risk (Test 2). Describes provider characteristics, beneficiary characteristics, and impacts of the 41 Test 1 AIM ACOs. Includes data on rurality for both Test 1 and Test 2 AIM ACOs.
Abt Associates, Centers for Medicare and Medicaid Services
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Accountable Care Organizations · Medicare · Policy · Reimbursement and payment models