Pharmacy benefit managers (PBMs) play a critical role in the US health care system by managing prescription drug benefits for insurers, government programs, and employers. However, the industry faces growing scrutiny over pricing transparency, rebate structures, and patient access to medications. As we move into 2025, the PBM landscape is undergoing significant transformation driven by regulatory changes, artificial intelligence (AI) integration, and transparency initiatives.
Regulatory Landscape: Cracking Down on PBM Practices
In 2024, the Biden administration and Congress introduced several measures to increase PBM transparency and reduce prescription drug costs. Regulatory bodies such as the Federal Trade Commission (FTC) and Centers for Medicare & Medicaid Services (CMS) have intensified investigations into PBM pricing practices, particularly spread pricing, and rebate structures.1
On the federal level, CMS has introduced new rules requiring PBMs to disclose rebates, administrative fees, and negotiated prices with pharmaceutical manufacturers and pharmacies.2 Meanwhile, over 30 states have passed laws restricting PBMs from using claw backs (charging pharmacies more than what patients pay) and gag clauses (preventing pharmacists from informing patients about lower-cost alternatives).3 As of 2025, PBMs managing Medicare Part D plans must pass all negotiated rebates directly to consumers, reducing out-of-pocket costs for seniors.4
Case Study: Ohio’s Crackdown on Spread Pricing
In 2023, Ohio’s Medicaid program found that PBMs overcharged the state by $224 million through spread pricing, in which PBMs billed Medicaid more than they reimbursed pharmacies.5 In response, Ohio transitioned to a pass-through PBM model, requiring full pricing transparency. Other states are following suit, accelerating the industry shift toward transparent business models.6 Although these regulatory changes promote fairness, they challenge traditional PBM revenue structures, forcing companies to adapt.
AI and Technology: The Digital Transformation of PBMs
AI is rapidly reshaping the PBM industry. AI-driven analytics and automation are streamlining operations, improving medication adherence, and detecting fraud.7