The new Pioneer Accountable Care Organization initiative set to launch in January in 32 healthcare organizations across the country could save up to $1.1 billion over five years, said the Centers for Medicare & Medicaid Services. The initiative, which will be managed by the CMS Innovation Center, marks a significant step in the U.S. Department of Health and Human Services' efforts to encourage primary care doctors, specialists, hospitals and other caregivers to offer coordinated care for Medicare beneficiaries.