PwC Behind the Numbers 2027: Medical Cost Trend Hits 9%

PwC June 11, 2026
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AI-Generated Summary

Commercial medical cost trend is projected to reach 9% in 2027 — the highest in 17 years — according to PwC’s Behind the Numbers 2027 report. Five inflators drive the increase: AI-enabled tools that help providers capture more revenue (ranked a top-three inflator by 70% of health plans), rising provider reimbursement amid consolidation (hospital services inflation hit 7.59% year over year in February 2026), growing pharmacy spend (3.5 million GLP-1 prescriptions filled in December 2025, nearly double a year earlier), a 62.6% rise in behavioral health utilization from 2018 to 2024, and No Surprises Act arbitration, where providers win 88% of payment disputes. With external deflators largely exhausted, PwC argues payers must lean on benefit design, network design, and utilization management to bend the curve.

Why It Matters

For multi-site operators and PE-backed groups, a 9% cost trend signals tightening payer scrutiny on reimbursement and utilization — and rising employer-plan costs. The same AI revenue tools fueling the trend are becoming table stakes, while network and payment-integrity pressure will reshape contract negotiations.

medical cost trend payer cost management GLP-1 spending behavioral health utilization provider reimbursement no surprises act RCM automation

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Frequently asked questions

How high will medical cost trend be in 2027?

PwC projects commercial medical cost trend will reach 9% in 2027 — the highest level in 17 years. The Group market is projected at 9% and the Individual market at 8.5%, and PwC restated its 2026 trends upward to 9.0% and 8.5% respectively.

What is driving the 2027 healthcare cost increase?

Five inflators drive the trend: AI-enabled tools that help providers capture more revenue, provider reimbursement pressure amplified by consolidation, rising pharmacy spend led by GLP-1s, a 62.6% jump in behavioral health utilization since 2018, and No Surprises Act arbitration, where providers win 88% of disputes.

What can payers do to slow medical cost trend?

With external deflators like biosimilars and generics already baked into baselines, PwC says payers must use levers they control directly — benefit and formulary design, network design, utilization management, and claims and payment integrity. Network design and reimbursement are the strongest long-term levers for resetting the cost baseline.

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