D'après le Washington Post:
Under the House bill, 36 million uninsured Americans would become eligible for coverage. About 15 million of the poorest children and adults would enroll in Medicaid. An additional 21 million would purchase coverage on a new national insurance exchange, where private plans would compete with a "public option" backed by the federal government.
An analysis of the House bill released late Thursday by the nonpartisan Congressional Budget Office estimated that 6 million people would choose a public plan, making it a relatively small player, despite the issue's outsize role in the health-care debate.
The House bill would require most individuals to buy insurance and would require employers to provide health coverage to their workers or face a penalty, although employers with payrolls of less than $500,000 annually would be exempt.