A survey by the Physicians Foundation indicates that slightly under 11% of physicians agreed that Accountable Care Organizations (ACOs) are likely to improve care quality and bring down costs. That number fell short of the 12.7% who responded positively in 2014. Doubts about the program were prevalent among the physicians who already participate in an ACO.
The study can be accessed at http://www.physiciansfoundation.org/uploads/default/Biennial_Physician_Survey_2016.pdf.