On Sunday, Billionaire entrepreneur Mark Cuban said health insurers and hospitals could undermine healthcare cost-cutting reforms unless regulators require full public disclosure of pricing contracts and enforce stricter transparency rules.

Cuban Calls For Healthcare Contract Transparency In a post on X, Cuban praised the administration's efforts to reduce healthcare costs but said policymakers are overlooking a key issue: assuming insurers will share negotiated savings with plan holders.

"The expectation that giving insurance companies more leverage in certain negotiations will lead them to passing on any cost reductions to plan holders … is ridiculous," Cuban wrote.

He added, "That is not their culture." He pointed to past disputes involving pharmacy benefit managers, or PBMs, arguing that insurers previously challenged regulations and created alternative fees to protect revenue.

"These are the same companies … they sued and found other ways to charge new fees," he said.