Medicare and Medicaid PBM Markets: Highly Concentrated, Impacting Drug Costs (2026)

Imagine a handful of companies controlling the majority of your access to medication. That's the reality for millions of Americans relying on Medicare and Medicaid, according to a startling new study. But here's where it gets controversial: just three pharmacy benefit managers (PBMs) dominate the market in most states, raising serious concerns about drug costs, pharmacy closures, and patient access.

A deep dive by the USC Schaeffer Center for Health Policy & Economics, published in JAMA Health Forum, reveals a startling lack of competition. Think of PBMs as middlemen between insurance companies, pharmacies, and drug manufacturers. The study found that a staggering 40 states have highly concentrated PBM markets for Medicare Part D, and 37 states face the same issue with Medicaid managed care. Even more concerning, 31 states suffer from high concentration in both programs, impacting a whopping 93% of Medicaid prescriptions and 75% of Part D prescriptions.

And this is the part most people miss: this concentration translates to real-world consequences.

Lead author Dima Mazen Qato, a senior scholar at the Schaeffer Center, paints a stark picture: "When a few PBMs dominate, they wield immense power over drug prices, where patients can fill prescriptions, and even whether essential medications are covered."

This study arrives at a critical juncture. Policymakers are increasingly scrutinizing PBM practices, with Congress recently passing legislation to curb their influence. States are also stepping up regulation.

The study's authors, including Yugen Chen and Karen Van Nuys, argue that their findings should serve as a roadmap for reform. Increased transparency and accountability for PBMs, particularly in Medicare and Medicaid, are crucial.

But is breaking up these PBM giants the solution? Or are there other ways to ensure fair access to affordable medication? The debate is far from over, and this study throws a spotlight on a complex issue with profound implications for the health of millions. What do you think?

Medicare and Medicaid PBM Markets: Highly Concentrated, Impacting Drug Costs (2026)

References

Top Articles
Latest Posts
Recommended Articles
Article information

Author: Francesca Jacobs Ret

Last Updated:

Views: 6716

Rating: 4.8 / 5 (48 voted)

Reviews: 95% of readers found this page helpful

Author information

Name: Francesca Jacobs Ret

Birthday: 1996-12-09

Address: Apt. 141 1406 Mitch Summit, New Teganshire, UT 82655-0699

Phone: +2296092334654

Job: Technology Architect

Hobby: Snowboarding, Scouting, Foreign language learning, Dowsing, Baton twirling, Sculpting, Cabaret

Introduction: My name is Francesca Jacobs Ret, I am a innocent, super, beautiful, charming, lucky, gentle, clever person who loves writing and wants to share my knowledge and understanding with you.