UnitedHealth Group

UnitedHealth Group is the largest health insurer in America and the single largest recipient of federal healthcare dollars, receiving over $150 billion per year from government programs — primarily Medicare Advantage and Medicaid managed care contracts. This extraordinary flow of taxpayer money to a single corporation has created a company that is, in many ways, a privatized arm of the federal healthcare system, wielding political power commensurate with its economic scale. The assassination of CEO Brian Thompson in December 2024 — shot outside a Manhattan hotel before an investor conference — exposed the depth of public anger at the health insurance industry in a way that no investigation or regulation had achieved. The alleged shooter, Luigi Mangione, became a folk hero on social media, with millions expressing sympathy for his apparent rage at an industry they saw as profiting from denied claims and delayed care. The reaction revealed that UnitedHealth's business model — maximizing revenue from government programs while minimizing payments to providers and patients — had created a level of public hostility that corporate America had rarely experienced. UnitedHealth's vertically integrated empire is unprecedented in healthcare. The company owns the insurance arm (UnitedHealthcare), the healthcare services company (Optum), and one of the three largest pharmacy benefit managers (OptumRx). This means UnitedHealth insures patients, employs their doctors (Optum owns physician practices with 90,000+ doctors), manages their prescriptions, and processes their claims — creating a closed system where conflicts of interest are structural. When the company that decides whether to approve your procedure also employs the doctor and manages the pharmacy, the incentive to deny care is built into the business model. Medicare Advantage overbilling has been documented extensively by government auditors and investigative journalists. CMS has estimated that Medicare Advantage plans — of which UnitedHealthcare is the largest provider — overbill the government by $12 billion or more annually through "upcoding" — the practice of making patients appear sicker than they are to receive higher government payments. Despite these findings, Medicare Advantage continues to grow because the industry lobbies aggressively against reforms, and because the program has genuine popularity among seniors who appreciate its supplemental benefits. UnitedHealth's lobbying operation — $8.5 million in 2024 with 40 lobbyists — focuses on protecting Medicare Advantage reimbursement rates, fighting prior authorization reform, and shaping the ACA marketplace. The company's 25 revolving door connections with CMS and HHS ensure that the people writing Medicare rules and the people profiting from them operate in the same professional ecosystem. Prior authorization — the practice of requiring insurer approval before procedures — has become a flashpoint, with physicians and patients reporting that UnitedHealth denies or delays authorizations even for medically necessary care, sometimes resulting in patient harm or death.