Sen. Elizabeth Warren (D-Mass) has criticized the vertical integration in the U.S. healthcare system, arguing that it leads to higher costs for patients and increased profits for large corporations.
Warren took to X on Sunday and used UnitedHealth Group Inc. (NYSE:UNH) as an example of a company that controls multiple aspects of healthcare, including insurance, pharmacies, and providers. She argued that this consolidation leads to higher costs for patients while increasing corporate profits.
She explained this consolidation, highlighting how entities like UnitedHealthcare and Optum Inc. link multiple parts of the care chain from insurance to specialty pharmacy services. Warren added that the same thing also applies to CVS Health Corp (NYSE:CVS).
“That’s not right — and I have a bill to stop it,” said Warren as she backed the bipartisan Patients Before Monopolies Act (S. 4509), which she co-sponsored with Sen. Josh Hawley (R-MO). The bill was reintroduced in May after first launching it in 2024.
The bill would ban common ownership of insurers and pharmacies and require companies to divest such holdings within a year to boost competition and lower drug prices.
Supporters of the bill said that, over time, the conglomerates behind the three major PBMs, UnitedHealth Group, CVS Health and Cigna Group (NYSE:CI), have come to exercise "control over every link in the prescription drug delivery chain" by both reimbursing pharmacies and owning or operating them.
In America, one health care company can own:
— Elizabeth Warren (@SenWarren) August 9, 2026
Your doctor
Your pharmacy
Your insurance
AND the middleman between your pharmacy and insurance.
That means more profits for giant companies and higher costs for you.
That's not right — and I have a bill to stop it. pic.twitter.com/AkrTo9Zyso
Read Also: Josh Hawley Becomes First Republican To Oppose CLARITY Act: 'They Are Blowing Me Up Over It'
Warren, Cuban Push For Healthcare Reform
Warren’s criticism of the healthcare system comes at a time when the cost of healthcare is a major concern for many Americans. Previously, the Senator proposed a wealth tax that could provide children with access to healthcare. She has also been critical of the narrative surrounding self-made billionaires and pushed her ultra-millionaire wealth tax proposal to fund the healthcare program.
Warren’s comments also align with those of billionaire entrepreneur and Costplusdrugs.com CEO Mark Cuban, who argued that companies may be overspending on healthcare due to a lack of visibility into complex insurance contracts. Cuban accused vertically integrated healthcare companies of exploiting employers’ reluctance to change, while brokers and consultants may also discourage switches because of the added work.
Hence, he urged CEOs to use AI tools such as ChatGPT, Claude, Grok or Gemini to review healthcare contracts and uncover potential issues.
UnitedHealth Group recently reported better-than-expected second-quarter results and raised its full-year 2026 earnings guidance, citing progress in simplifying operations, improving affordability and leveraging technology to enhance healthcare services.
Disclaimer: This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.
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