The Scale Illusion: “Medicare for All” Is a Global Outlier

Part 2 in the Medicare for All House of Cards Series

“Every other developed country has universal healthcare.”  It’s been said so many times that it’s almost cliché.  Here’s the problem, universal healthcare doesn’t mean the same thing to everyone who says it and it comes in many forms even for the nations that have it.  For our purposes, let’s call it “single-payer healthcare systems” so that we can build a clear picture of what we are trying to build.  And let’s also make sure when we compare what happens in the US to what happens in other places, we make sure our comparisons take into account the scope and scale of what we are proposing.

Whenever single-payer healthcare is defended in American political discourse, proponents invariably point outside our borders, to Canada, the United Kingdom, or Western Europe, as proof that universal, government-run systems are efficient, affordable, and popular. This comparison is incomplete and perhaps even inappropriate.

The single-payer system envisioned in the Medicare for All Act of 2025¹ is not a standard adoption of European-style socialized medicine. Despite arguments to the contrary, the US is not the same as those other nations often used for comparison. Examining the sheer scale and the specific design choices embedded in the American plan shows it departs from every existing universal system in the developed world in several important respects.

First: The US Context Demands an Unprecedented Leap in Scale

The most immediate difference between the proposed system and existing international models is scale. The United Kingdom’s National Health Service covers a population of roughly 67–68 million.² Canada’s Medicare system covers about 41 million people, and unlike the centralized U.S. proposal it is not run as a single national program; each of Canada’s provinces and territories administers its own plan under the framework of the federal Canada Health Act.³

The Medicare for All Act would consolidate a population of roughly 340 million people under a single federal program managed out of Washington.¹ A federal agency processing claims and setting national payment rates for over $3 trillion in annual spending across a population eight times the size of any comparable existing system represents a genuinely novel scale of administrative centralization.  This is not necessarily unworkable, but it is untested at this scale.

Second: The Abolition of Cost-Sharing and Expanded Areas of Coverage Call for an Unprecedented Expansion of Scope

The current Medicare for All proposal calls for an elimination of nearly all point-of-service costs including copays, deductibles, and coinsurance, with only a $200 annual cap for prescription drugs.¹  This is unusual by international standards. According to the Commonwealth Fund’s International Health Care System Profiles, most peer nations retain some form of cost-sharing:

  • Canada provides first-dollar coverage for physician and hospital services with no cost-sharing, but this doesn’t extend to dental care, vision care, or outpatient prescription drugs, which are excluded from the core public system in most provinces. About two-thirds of Canadians carry supplementary private insurance, commonly through employer plans, to cover these gaps. These supplemental plans would be outlawed under the Sanders plan in the US.  Canada has historically been the only developed country with universal health coverage that doesn’t include a national pharmacare program, though the government introduced initial pharmacare legislation in 2024.³ ⁴
  • France’s system reimburses a substantial share of routine outpatient costs through the public insurer, with patients typically responsible for the remainder, which most French residents cover through supplemental “Mutuelle” insurance, similar in spirit to Canada’s supplemental market.⁵

By eliminating essentially all of these gaps and cost-sharing mechanisms at once, the Sanders bill removes a tool that most peer systems still use, in some form, to manage utilization and cost.

Universal systems outside the US typically draw firmer lines around what the public system covers. As noted above, Canada’s core public program has historically excluded dental, vision, and outpatient drug coverage, pushing citizens toward private supplemental insurance or provincial safety-net programs for those services.³ ⁴ The Medicare for All Act, by contrast, folds comprehensive adult dental, vision, hearing, and long-term care directly into the core federal program at no cost to the patient¹  This is a substantially broader guaranteed benefit package than what any of these peer nations currently provides through their public system alone.

Perhaps the most restrictive element of the bill is its prohibition on private insurers selling coverage that duplicates the federal program’s benefits.¹ This is a genuine outlier internationally:

  • Germany, France, and the Netherlands achieve universal coverage not through a single government payer but through tightly regulated markets of competing nonprofit or private “sickness funds” and insurers.⁵
  • The UK’s NHS, despite being a pure single-payer system, does not prohibit private insurance. UK residents can purchase private medical insurance that runs in parallel to the NHS, allowing them to bypass NHS waiting lists for eligible treatment at private facilities,  providing a safety valve the Sanders bill’s duplicate-coverage ban would eliminate.⁶

The Bottom Line

The Medicare for All Act is not a straightforward import of an existing European or Canadian model. It combines an unprecedented population scale, the near-total elimination of cost-sharing mechanisms that most peer systems still rely on, a broader core benefit package than any comparable country currently guarantees, and a ban on private competition stricter than what even single-payer Britain imposes. Whether that combination is a strength (a more genuinely universal system) or a liability (an untested set of simultaneous departures from every working model) is the crux of the policy debate — but it should be argued on those terms, rather than on the premise that the bill simply replicates what other countries already do successfully.


Sources

  1. Medicare for All Act, H.R. 3069, 119th Cong. (2025); S. 1506, 119th Cong. (2025). Full text: congress.gov/bill/119th-congress/house-bill/3069/text
  2. Office for National Statistics, UK population estimates; NHS England, “Overview of the NHS.” Commonwealth Fund International Health Care System Profiles — United Kingdom: commonwealthfund.org/international-health-policy-center/countries/united-kingdom
  3. Commonwealth Fund International Health Care System Profiles — Canada (2026 update): commonwealthfund.org/international-health-policy-center/countries/canada; PDF: commonwealthfund.org/sites/default/files/2026-04/2026_Country-Profiles_Canada.pdf
  4. Canadian Medical Association, “Who pays for Canadian health care?” cma.ca/healthcare-for-real/who-pays-canadian-health-care
  5. Commonwealth Fund International Health Care System Profiles — France, Germany, Netherlands: commonwealthfund.org/international-health-policy-center/system-profiles
  6. Commonwealth Fund International Health Care System Profiles — United Kingdom; general description of parallel NHS/private insurance structure consistent with the National Health Service Act 2006 framework.

Medicare for All: A Bold Promise or a House of Cards?

The American healthcare system is broken!  That’s something a majority of Americans can agree on.  How to fix it does not have such strong consensus.  When it comes to fixing American healthcare, few proposals have generated as much passion, or as much fierce debate, as Senator Bernie Sanders’ Medicare for All. 

On the surface, the promise is incredibly appealing: you walk into any hospital or doctor’s office, receive whatever care you need, and walk out without ever seeing a bill, a copay, or a deductible. No more fighting with insurance companies over claims. No more medical debt. Who wouldn’t want that? 

But you can’t just legislate this into existence without considering the costs and the consequences.  This is the first in a series of essays exploring those parts of the story. To understand if Medicare for All makes “good sense,” it is vital to look past the rhetoric and closely examine the math, the mechanics, and the monumental disruptions it would introduce to the American economy.

The first thing to understand is how Medicare for All is designed

The Sanders plan is a “single-payer” national health insurance program. This means the federal government completely replaces private commercial insurance and becomes the sole entity paying for medical care in the United States.  Often called a “single payer” system, it is designed to consolidate the entire healthcare delivery system into a single administrative structure.

The structure relies on four core pillars:

  • Universal Coverage: Every U.S. resident is automatically enrolled, with coverage beginning at birth or on establishing residency.
  • Zero Out-of-Pocket Costs: All premiums, deductibles, and copays are eliminated for covered services, with prescription drugs the sole exception. (prescription drugs would have a small annual out of pocket max satisfied through co-pays)
  • Comprehensive Benefits: The plan covers hospital care, mental health and substance abuse treatment, dental, vision, hearing, long-term care, and reproductive and gender-affirming care.
  • A Ban on Duplicate Private Insurance: Private insurers and employers may only sell coverage that supplements the government program, not coverage that duplicates it.  Note this one.  It means the health insurance companies are out of business.

The current version of Medicare for All legislation suggests this system could be fully introduced over two years. ¹ Starting one year after enactment, children 18 and under, adults 55 and older, and those already on Medicare become eligible; by year two, coverage extends to everyone else.  This sounds great, and many believe it is a substantial improvement over earlier versions that suggested it would take 4 years to implement.  However, this faster on-ramp makes the cost analyses even more problematic.

Does this plan make Good Sense?  Initial analysis reveals at least three critical concerns that could each be the “fatal flaw.”

1. The Trillion-Dollar Revenue Disparity

The most immediately glaring issue with Medicare for All is the math on the federal balance sheet. A 2019–2020 Urban Institute and Commonwealth Fund analysis put the federal cost of a comparable single-payer system at roughly $32 trillion over ten years; a separate 2018 study by Charles Blahous of the Mercatus Center put the figure at $32.6 trillion over the same period, using assumptions favorable to the plan’s proponents.² ³ Both studies modeled the bill’s earlier four-year phase-in.  No independent group has re-run these models against the 2025 bill’s compressed two-year timeline.  When those models are run it is likely that the overall costs will increase as larger numbers of American come on board earlier increasing utilization costs.

To pay for this, proponents, led by Senator Bernie Sanders, proposed a menu of progressive taxes, including a 4% individual income surcharge, a 7.5% employer payroll tax, and various wealth and corporate taxes. Independent analysts estimate that these combined taxes would likely fall well short of the $3.2–3.4 trillion in new annual spending, leaving a structural funding gap which could easily be in the hundreds of billions to over a trillion dollars per year, depending on which revenue and cost assumptions are used. Closing that gap would require either significantly higher taxes on all Americans, especially middle-class families, or a broad-based consumption tax.  The argument that the increased costs are offset by savings across the healthcare system are considered in point number 3 below. Note, however, that the projected savings across the system do not equal the estimate 1 plus trillion-dollar annual budget deficits.

2. The Patient Influx vs. Shrinking Provider Pool

If you make a vital service completely free at the point of delivery, demand for that service will inevitably rise. Under the compressed two-year design, most of that demand surge, everyone not already covered in year one, arrives in a single additional year rather than spread across three.  There are clear reasons to doubt that the system will have the capacity to meet that surge.

The supply of doctors, nurses, and hospital beds cannot scale overnight under any timeline. Because the plan aims to control costs by capping reimbursement rates near traditional Medicare levels, rates the Medicare Payment Advisory Commission (MedPAC) and multiple hospital associations have long noted run below private insurance rates, many hospitals could face revenue shortfalls that prompt closures or early physician retirements, shrinking the provider pool just as the compressed timeline asks it to absorb more patients, faster.

When a faster patient influx meets a static or shrinking pool of providers, the result is unavoidable: care rationing shifts from financial to temporal. Patients won’t be priced out of care, they’ll be timed out of it, facing longer waits for elective surgeries, specialist visits, and diagnostic imaging.  The outcry today is that people are not getting necessary care because they can’t afford it.  The likely outcome of the Medicare for All plan is that people will not get necessary care because they can’t get an appointment with a doctor, or they can’t get the test they need, or they can’t get a surgery scheduled.

The plan’s financial viability makes a huge and unsubstantiated assumption.  It assumes up front that administrative costs will fall from the 12–15% typical of private insurers to the roughly 2% reported for traditional Medicare.  The argument offers up substantial savings numbers for the system as a whole. For example, a December 2020 Congressional Budget Office working paper modeled several illustrative single-payer designs and found administrative savings ranging from $42 billion to $743 billion annually depending on assumptions.  The most often cited savings number is $650 billion, but this comes from CBO’s most favorable “low payment rate, low cost-sharing” scenario, not a formal score of this bill.⁴ That analysis, like the Urban and Mercatus estimates, predates the 2025 bill’s faster rollout.  In other words, these are highly optimistic numbers that are not supported by solid financial models.  More detail on this problem will come in a later essay.

3. The Myth of Effortless Administrative Gains

Sources

Not only is the administrative gain open to dispute, dismantling the private insurance sector would displace a substantial share of the health insurance workforce. A 2018 economic analysis by researchers at the University of Massachusetts Amherst’s Political Economy Research Institute (PERI), a study broadly sympathetic to Medicare for All, estimated the number of displaced workers in insurance and related administrative roles at approximately 1.8 million, including nearly 300,000 workers aged 60 or older.⁵ What happens to those workers and those jobs?

While the plan proposes a federally funded Worker Transition Trust Fund to provide retraining and temporary wage replacement, history shows that government-run retraining programs struggle to efficiently transition displaced workers into comparable, high-paying careers.  This is such an important part of this analysis it will get major focus in one of the later essays in this series.

The Bottom Line

Medicare for All sounds good.  It plan attempts to pull off an unprecedented economic feat: covering 340 million people with the most generous benefits package in the developed world, outlawing market competition, and eliminating out-of-pocket costs — all while assuming administrative costs fall dramatically. The 2025 version raises the stakes further by compressing the rollout from four years to two, asking the tax base, the provider system, and the administrative machinery to adjust faster than any existing cost model has actually tested.

Good sense dictates that before we tear down the foundation of American healthcare on a tighter schedule than originally proposed, we should make sure the replacement blueprint isn’t a house of cards.


  1. Reintroduced in April 2025 alongside Reps. Pramila Jayapal and Debbie Dingell as S.1506 in the Senate and H.R.3069 in the House.  Medicare for All Act, H.R. 3069, 119th Cong. (2025); S. 1506, 119th Cong. (2025). Full text: congress.gov/bill/119th-congress/house-bill/3069/text
  1. Urban Institute & Commonwealth Fund (2019). From Incremental to Comprehensive Health Insurance Reform. urban.org/research/publication/estimating-cost-single-payer-plan
  2. Blahous, C. (2018). The Costs of a National Single-Payer Healthcare System. Mercatus Center at George Mason University. mercatus.org — “How the Urban Institute’s Estimates of Medicare for All Costs Stack Up”
  3. Congressional Budget Office (December 2020). How CBO Analyzes the Costs of Proposals for Single-Payer Health Care Systems. cbo.gov/publication/56898
  4. Pollin, R., Heintz, J., Arno, P., Wicks-Lim, J., & Ash, M. (2018). Economic Analysis of Medicare for All. Political Economy Research Institute, University of Massachusetts Amherst, Appendix 6. peri.umass.edu/publication/economic-analysis-of-medicare-for-all
  5. Jayapal, P., quoted in “‘Medicare-for-all’ sponsor says plan would gut 1 million private insurance jobs,” Fox News (2019). foxnews.com/politics/medicare-for-all-would-gut-a-million-private-insurance-jobs