Prior to the recent health care reforms, there was a great deal of dissatisfaction with the insurance industry which was regarded as dysfunctional. In the late 1990s and early 2000s, health advocacy companies began to appear to help patients deal with the complexities of the healthcare system. The complexity of the healthcare system has resulted in a variety of problems for the American public. A study had found that 62 percent of persons declaring bankruptcy in 2007 had unpaid medical expenses of over of $1000 or more, and in 92% of these cases the medical debts exceeded $5000. Nearly 80 percent who filed for bankruptcy had health insurance. The Medicare and Medicaid programs were estimated to soon account for 50 percent of all national health spending. These factors and many others fueled interest in an overhaul of the health care system in the United States. In 2010 President Obama signed into law the Patient Protection and Affordable Care Act. This Act included a main provision which the American medical insurance industry lobby group, America's Health Insurance Plans had called for, namely a mandate that every American must have medical insurance (or pay a fine) as a quid pro quo for "guaranteed issue", i.e. the dropping of unpopular features of America's health insurance system such as premium weightings and exclusions for pre-existing conditions and the pre-screening of insurance applicants.
Source : wikipedia