Bigger health companies: Good for Medicare, maybe not for others

Although Obamacare's health insurance expansion has directly provided coverage to only about 4 percent of Americans, changes embedded in the Affordable Care Act could affect many more people, and not always in good ways. One such change is a provision that allows organizations that join forces to manage care for a large population to receive bonuses from Medicare for controlling costs and hitting quality targets (or face penalties if they do not). Medicare's Accountable Care Organization model, as it's called, favors larger health provider organizations that can manage the costs and quality of all types of care Medicare pays for, from primary care to high-intensity hospitalization and everything in between.