MEDICARE AND MEDICAID

CMS, an agency within the Department of Health and Human Services (HHS), provides health coverage for over 145 million Americans through its four principal programs, with annual outlays of about $1.1 trillion. GAO has designated the two largest programs, Medicare and Medicaid, as high risk partly due to their vulnerability to fraud, waste, and abuse. In fiscal year 2016, improper payment estimates for these programs totaled about $95 billion...