Officials announced that 32 networks of doctors and hospitals around the country are becoming Pioneer Accountable Care Organizations or ACOs.
Behind the acronym is a coordinated approach to medicine so that risks like high blood pressure and elevated blood sugars are managed better and patients get help leading a healthier lifestyle.
The networks will be eligible for financial rewards if they improve care and lower costs.
About 860,000 of Medicare's 47 million beneficiaries will be involved in the test. They'll still be free to go to any doctor.
Officials hope the test will lead to a new model for all of Medicare.
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