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Humalog is one of the more common forms of insulin to manage diabetes. (Alan Levine via Flickr Creative Commons) Humalog is one of the more common forms of insulin to manage diabetes. (Alan Levine via Flickr Creative Commons)

Humalog is one of the more common forms of insulin to manage diabetes. (Alan Levine via Flickr Creative Commons)

Samantha Putterman
By Samantha Putterman April 2, 2024

Biden is right about $35 insulin cap, but exaggerates prior costs for Medicare enrollees

If Your Time is short

  • The Inflation Reduction Act capped the monthly price of insulin at $35 for Medicare enrollees starting in 2023.

  • Drug pricing experts said most Medicare enrollees likely were not paying a monthly average of $400 before these changes. Costs and other factors vary, so some Medicare enrollees might have paid that much in a given month.

  • Research shows that patients with private insurance or Medicare often paid more than $35 a month for their insulin, but not as high as the $400 average Biden cited.

The cost of insulin in the United States has risen considerably in recent years, with some estimates finding that Americans have paid around 10 times more for the drug than people in other developed countries.

But recent changes by the government and drug manufacturers have started to drive insulin prices down, something President Joe Biden often mentions at campaign events.

Biden told the crowd at a March 19 campaign reception in Reno, Nevada, that he’s fought for years to allow Medicare to negotiate with drug companies.

"How many of you know someone who needs insulin?" Biden asked. "OK, well, guess what? It was costing 400 bucks a month on average. It now costs $35 a month."

We’ve heard Biden make this point several times on the campaign trail — in other instances, he has said beneficiaries were paying "as much as" $400 a month — so we wanted to look into it.

The Inflation Reduction Act, which Biden signed in 2022, caps out-of-pocket insulin costs at $35 a month for Medicare enrollees. The cap took effect in 2023. In response, three drug manufacturers said they planned to reduce the price of insulin to $35 through price caps or savings programs.

The legislation also helped patients by clarifying how much they would have to pay for insulin and other drugs.

But Biden overstated the average monthly cost that Medicare beneficiaries were paying before the law. 

One government estimate for out-of-pocket insulin costs found that people with diabetes enrolled in Medicare or private insurance paid an average of $452 a year — not a month, as Biden said. That’s according to a December 2022 report by the U.S. Department of Health and Human Services using 2019 data. Uninsured users, however, paid more than twice as much on average for the drug, or about $996 annually.

About half of U.S. insulin users are on Medicare

More than 37 million Americans have diabetes, and more than 7 million of them need insulin to control their blood sugar levels and prevent dangerous complications. Of the Americans who take the drug, about 52% are on Medicare.

It’s unlikely that many Medicare enrollees were paying the $400 out-of-pocket monthly average Biden referred to, though it could be on target for some people, especially if they’re uninsured, drug pricing experts told us.

"It would be more accurate to say that it could cost people on Medicare over $400 for a month of insulin, but the average cost would have been quite a bit lower than $400 on Medicare," said Stacie Dusetzina, a health policy professor at Vanderbilt University School of Medicine. 

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Medicare Part D, also called the Medicare prescription drug benefit, helps beneficiaries pay for self-administered prescriptions. The benefit has several phases, including a deductible, an initial coverage phase, a coverage gap phase and catastrophic coverage. What Medicare beneficiaries pay for their prescriptions often depends on which phase they’re in.

"It is confusing, because the amount that a person was supposed to pay jumps around a lot in the Part D benefit," Dusetzina said. For example, Dusetzina said that Medicare beneficiaries would be more likely to pay $400 a month for insulin during months when they hadn’t yet met their deductible. 

Dr. Mariana Socal, an associate scientist at Johns Hopkins Bloomberg School of Public Health, said it’s also difficult to estimate insulin’s precise cost under Medicare because individual prices hinge on other factors, such as how many other prescription medications patients take. 

"Because the Medicare program has multiple instances where the patient is required to pay a coinsurance (percentage of the drug's cost) to get their drug, it is very likely that patients were paying much more than $35 per month, on average, before the cap established by the Inflation Reduction Act went into effect," Socal wrote in an email.

There are different ways to administer insulin, including through a pump, inhaler or pen injector filled with the medicine. 

In a 2023 report, U.S. Health and Human Services department researchers estimated that about 37% of insulin fills for Medicare enrollees cost patients more than $35, and 24% of fills exceeded $70. Nationally, the average out-of-pocket cost for insulin was $58 per fill, typically for a 30-day supply, the report found. Patients with private insurance or Medicare paid about $63 per fill, on average.

For people with employer-sponsored insurance, the average monthly out-of-pocket spending on insulin in 2019 was $82, according to an October 2021 report by the Health Care Cost Institute, a nonprofit that studies health care prices. The study found that the majority were spending an average of $35 a month, or lower, on the drug. But among the "8.7% of individuals in the highest spending category," the median monthly out-of-pocket spending on insulin was about $315, the study said.

Our ruling

Biden said Medicare beneficiaries used to pay an average of $400 per month for insulin and are now paying $35 per month.

The Inflation Reduction Act capped the monthly price of insulin at $35 for Medicare enrollees, starting in 2023.The change built in price predictability and helped insulin users save hundreds of dollars a year. 

However, most Medicare enrollees were not paying a monthly average of $400 before these changes, according to experts and government data. Costs vary, so it is possible some people paid that much in a given month, depending on their coverage phase and dosage. 

Research has shown that patients with private insurance or Medicare often paid more than $35 a month for their insulin, sometimes much more, but not as high as the $400 average Biden cited.

We rate Biden’s statement Half True.

PolitiFact Copy Chief Matthew Crowley contributed to this report.

Our Sources

WhiteHouse.gov, Remarks by President Biden at a Campaign Event | Reno, NV, video, March 19, 2024 

U.S. Department of Health and Human Services, New HHS Report Finds Major Savings for Americans Who Use Insulin Thanks to President Biden’s Inflation Reduction Act, Jan. 24, 2023 

U.S. Department of Health and Human Services, Insulin Affordability and the Inflation Reduction Act: Medicare Beneficiary Savings by State and Demographics, Revised Oct. 26, 2023 

Bloomberg Law, Insulin Costs Remain Top Target Beyond Biden’s Drug Price Cuts, Oct. 26, 2023

The American Diabetes Association, State Insulin Copay Caps, Accessed March 28, 2024

NPR, Eli Lilly cuts the price of insulin, capping drug at $35 per month out-of-pocket, March 1, 2023 

WhiteHouse.gov, FACT SHEET: President Biden’s Cap on the Cost of Insulin Could Benefit Millions of Americans in All 50 States, March 2, 2023

Health Care Cost Institute, Capping Out-of-Pocket Spending on Insulin would Lower Costs for a Substantial Proportion of Commercially Insured Individuals, Oct. 15, 2021 

U.S. Centers for Disease Control and Prevention, National Diabetes Statistics Report, Updated November 2023 

KFF, Insulin Out-of-Pocket Costs in Medicare Part D, July 28, 2022 

KFF Health News, America Worries About Health Costs — And Voters Want to Hear From Biden and Republicans, March 8, 2024 

USA Facts, A cap on insulin costs benefits millions of Americans with diabetes, April 15, 2023 

The Associated Press, Insider Q&A: What’s behind rising insulin prices?, August 5, 2018 

USA Today, Insulin $35 cap price now in effect, lowering costs for many Americans with diabetes, Jan. 3, 2024 

Email interview Dr. Mariana Socal, associate scientist at Johns Hopkins Bloomberg School of Public Health, March 28, 2024   

Email interview, Stacie Dusetzina, professor of health policy at Vanderbilt University, March 29, 2024

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Biden is right about $35 insulin cap, but exaggerates prior costs for Medicare enrollees

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