(Story updated at 3 p.m. ET.)
Medicare's accountable-care experiment, which seeks to revamp how hospitals and doctors get paid, more than doubled in size with 89 newly named participants.
The CMS added the latest accountable care organizations (PDF) to 27 ACOs in its shared-savings program, which offers medical groups, hospitals and federally qualified health centers financial incentives for quality improvement and cost control. An additional 38 organizations operate under other Medicare accountable care contracts.
“The Medicare ACO program opened for business in January, and already, more than 2.4 million beneficiaries are receiving care from providers participating in these important initiatives,” acting CMS Administrator Marilyn Tavenner said in a statement (PDF).
“We are very pleased with today's overall numbers,” said Jonathan Blum, the principal deputy administrator and director of the Center for Medicare, on a conference call with reporters.
According to the CMS, the selected ACO programs operate in a range of areas nationwide and nearly half are physician-led organizations that serve fewer than 10,000 beneficiaries, which indicates smaller organizations are interested in participating. Blum said federal officials were pleased with the diversity of participating ACOs.