The insured person has full freedom of choice among the approximately 60 recognised healthcare providers competent to treat their condition (in their region) on the understanding that the costs are covered by the insurance up to the level of the official tariff. There is freedom of choice when selecting an insurance company to which one pays a premium, usually on a monthly basis. The insured person pays the insurance premium for the basic plan up to 8% of their personal income. If a premium is higher than this, the government gives the insured person a cash subsidy to pay for any additional premium.
A survey designed and conducted by Drs. Salomeh Keyhani and Alex Federman of Mount Sinai School of Medicine done over the summer of 2009 found that 73% of doctors supported a public option.[53] A survey reported by the New England Journal of Medicine in September, based on a random sample of 6,000 physicians from the American Medical Association, stated that "it seems clear that the majority of U.S. physicians support using both public and private insurance options to expand coverage."[54]

A health maintenance organization (HMO) is a type of managed care organization (MCO) that provides a form of health care coverage that is fulfilled through hospitals, doctors, and other providers with which the HMO has a contract. The Health Maintenance Organization Act of 1973 required employers with 25 or more employees to offer federally certified HMO options.[94] Unlike traditional indemnity insurance, an HMO covers only care rendered by those doctors and other professionals who have agreed to treat patients in accordance with the HMO's guidelines and restrictions in exchange for a steady stream of customers. Benefits are provided through a network of providers. Providers may be employees of the HMO ("staff model"), employees of a provider group that has contracted with the HMO ("group model"), or members of an independent practice association ("IPA model"). HMOs may also use a combination of these approaches ("network model").[19][95]

Medicare Advantage plans expand the health insurance options for people with Medicare. Medicare Advantage was created under the Balanced Budget Act of 1997, with the intent to better control the rapid growth in Medicare spending, as well as to provide Medicare beneficiaries more choices. But on average, Medicare Advantage plans cost 12% more than traditional Medicare.[48] The ACA took steps to align payments to Medicare Advantage plans with the cost of traditional Medicare.
Carrin, Guy; James, Chris (January 2005). "Social health insurance: Key factors affecting the transition towards universal coverage" (PDF). International Social Security Review. 58 (1): 45–64. doi:10.1111/j.1468-246x.2005.00209.x. Retrieved 10 March 2013. Initially the health insurance law of 1883 covered blue-collar workers in selected industries, craftspeople and other selected professionals.6 It is estimated that this law brought health insurance coverage up from 5 to 10 per cent of the total population.

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Historically, health insurance has been regulated by the states, consistent with the McCarran-Ferguson Act. Details for what health insurance could be sold were up to the states, with a variety of laws and regulations. Model acts and regulations promulgated by the National Association of Insurance Commissioners (NAIC) provide some degree of uniformity state to state. These models do not have the force of law and have no effect unless they are adopted by a state. They are, however, used as guides by most states, and some states adopt them with little or no change.
In-network and out-of-network providers – some plans cover different costs from in-network, versus out-of-network, providers. In-network providers are those who agree to the health insurer’s policies and procedures and typically result in less expense to the insured. Out-of-network providers are those providers that have not yet agreed fully to the health insurer’s policies and procedures. The insurer typically cover less expense or no expense at all for out-of-network providers.
A number of alternatives to the public option were proposed in the Senate. Instead of creating a network of statewide public plans, Senator Olympia Snowe proposed a "trigger" in which a plan would be put into place at some point in the future in states that do not have more than a certain number of private insurance competitors. Senator Tom Carper has proposed an "opt-in" system in which state governments choose for themselves whether or not to institute a public plan. Senator Chuck Schumer has proposed an "opt-out" system in which state governments would initially be part of the network but could choose to avoid offering a public plan.[35]

The Affordable Care Act of 2010 was designed primarily to extend health coverage to those without it by expanding Medicaid, creating financial incentives for employers to offer coverage, and requiring those without employer or public coverage to purchase insurance in newly created health insurance exchanges. This requirement for almost all individuals to maintain health insurance is often referred to as the "individual mandate." The CBO has estimated that roughly 33 million who would have otherwise been uninsured will receive coverage because of the act by 2022.[17]