Primary care physicians will see their Medicare reimbursement decline next year when a program that pays them a 10 percent bonus expires.

The program, launched in 2011 to help close the gap between private insurance and Medicare primary care payments, spent more than $660 million in 2012, the most recent year for which figures are available, and resulted in nearly $4000 in additional income for eligible doctors.

Learn more about how the program worked, what it sought to accomplish, whether it achieved its objectives, and how doctors and others view its end in this Kaiser Health News article.