Harris Health sues insurer over unpaid claims, county taxpayers could pay bill

Harris County taxpayers could end up paying for millions in disputed hospital bills if Harris Health wins its federal case against Wellpoint Texas and two related entities over unpaid Medicare Advantage claims.

The public hospital system filed suit May 4 in the Southern District of Texas against Wellpoint Texas, formerly Amerigroup Texas, along with IntegraNet Health Network and the independent physician association Van Lang. Harris Health says the dispute traces back to a 2004 in-network agreement and centers on services delivered to thousands of Medicare Advantage patients at its public facilities, including Ben Taub Hospital and LBJ Hospital.

Harris Health says it began seeing delayed payments and denials in 2020, then raised concerns that same year. A separate report said the system later alleged Amerigroup tried to replace the contract in 2021 after the payment fight had already escalated. At the center of the case is a basic question with a public price tag: whether Harris Health absorbed the cost of care that should have been paid by the insurer, while the insurer kept receiving fixed Medicare Advantage payments from the federal government.

That matters because Medicare Advantage plans are paid by the Centers for Medicare & Medicaid Services through capitation-style payments, meaning the insurer gets a set per-member amount instead of reimbursing each claim the way traditional fee-for-service Medicare does. If Harris Health proves the claims were wrongly denied, underpaid or delayed, the lost revenue could reverberate through the county’s public health system and eventually pressure the Harris County budget.

The stakes are large even before a judge rules. Harris Health’s audited financial statements showed total net revenue of $2.747 billion for the year ended Sept. 30, 2025, and $1.8896 billion in unrestricted cash, cash equivalents and investments as of May 31, 2025. At the same time, county commissioners have been moving ahead with a $410 million Ben Taub Hospital expansion, underscoring how much capital and operating pressure already sits on the system.

The lawsuit is also a test of whether this is a one-off billing fight or a broader breakdown in how one of the region’s largest safety-net providers gets paid. ABC13 reported that disputes between providers and insurers are common and that patients should not expect their current coverage or treatment to be disrupted while the case continues. The financial question, however, could linger long after the courtroom fight ends.