United States National Health Care Act

The Expanded and Improved Medicare for All Act, also known as Medicare for All or United States National Health Care Act, is a bill first introduced in the United States House of Representatives by Representative John Conyers (D-MI) in 2003, with 38 cosponsors. In 2019, the original 16 year-old proposal was renumbered and Pramila Jayapal (D-WA) introduced a broadly similar but more detailed bill, HR 1384, in the 116th Congress. , it had 116 cosponsors still in the House at the time, or 49.8% of House Democrats.
The act would establish a universal single-payer health care system in the United States, the rough equivalent of Canada's Medicare and Taiwan's Bureau of National Health Insurance, among other examples. Under a single-payer system, most medical care would be paid for by the federal government, ending the need for private health insurance and premiums, and recasting private insurance companies as providing purely supplemental coverage, to be used when non-essential care is sought. The national system would be paid for in part through taxes replacing insurance premiums, but also by savings realized through the provision of preventive universal healthcare and the elimination of insurance company overhead and hospital billing costs.
On September 13, 2017, Senator Bernie Sanders introduced a parallel bill in the United States Senate with 16 cosponsors. The act would establish a universal single-payer healthcare system in the United States.
Provisions.
The laws proposed are not necessarily identical year-over-year. 
John Conyers Bill.
The summary of the National Health Care Act as proposed in the 111th Congress (2009–2010) includes the following elements, among others:
Pramilla Jaypal's Bill.
Pramila Jayapal's Medicare for All Act of 2019, introduced in the House is broadly similar but more detailed than the original Conyers proposal, but the "parallel" proposal by Sanders has significant differences, including a "global budget" system for hospitals. Both proposals contain expansive coverage including long-term care and dental care with no cost-sharing such as coinsurance, deductibles, or premiums, which as of 2019 is unprecedented in the world.
Under the House version, funding for institutions such as hospitals would be negotiated with regional directors, while individual providers would be paid a fee-for-service. Value-based pay for performance incentives would not be allowed. HHS would have administrative authority to set various details.
The Senate proposal sets out a four-year transition plan and the House proposal is two years.
As of April 2019, the Senate proposal did not include details on how to completely pay for the plan, but Sanders had released a paper listing ideas.
Analysis.
An analysis of the bill by Physicians for a National Health Program estimated the immediate savings at $350 billion per year. Others have estimated a long-term savings amounting to 40% of all national health expenditures due to the extended preventive healthcare and the elimination of insurance company overhead costs.
A study estimated the 1999 costs of U.S. health care administration at nearly $300 billion, accounting for 30.1% of health care expenses, versus 16.7% in Canada. This study estimated the U.S. per-person administrative cost at $1,059.
Charles Blahouse, who worked as George W. Bush's economic advisor and as a public trustee for medicare and social security, wrote a Mercatus Center study of the 2017 proposal It claims that Sanders' M4A plan will increase federal spending by at least $32 trillion but that the savings on administrative and other costs could save $2 trillion in healthcare costs. However, Blahouse stresses that these savings rely on multiple generous assumptions and that the plan will likely cost significantly more.
A 2019 analysis was critical of Sanders bill for allowing accountable care organizations and failing to include a provision to negotiate budgets with hospitals.
According to a 2020 study in "The Lancet", the Medicare for All Act was estimated to save 13% in national health-care expenditure (equivalent to more than US$450 billion annually), and save more than 68,500 lives every year.