The True Cost of Pharmacy Benefit Mismanagement

Pharmacy Spend Is Surging

Pharmacy costs have increased at double the rate of medical costs over the past five years. For a 1,000-employee self-funded plan, pharmacy spend now averages $2.5-3.5 million annually. Yet employer oversight of pharmacy benefits remains shockingly thin.

Where the Money Goes

PBMs sit at the center of a complex financial web connecting manufacturers, pharmacies, and health plans. They make money through multiple streams — many of which are invisible to the employer:

• Spread pricing: Charging plans more than they pay pharmacies
• Rebate arbitrage: Negotiating rebates from manufacturers, passing through only a portion
• Formulary placement fees: Accepting payments from drug manufacturers for preferred status
• Specialty pharmacy margins: Dispensing high-cost drugs through owned pharmacies at marked-up prices

The Scale of the Problem

A 2024 FTC report found that the three largest PBMs — controlling 80% of the market — generated $7.3 billion in undisclosed revenue from self-funded employer plans. For a mid-size employer, this translates to $300-$800 per member per year in excess costs.

What Self-Funded Employers Can Do

1. Audit your PBM contract independently — not through your broker, who may have PBM relationships
2. Demand transparent pricing models — pass-through pricing with disclosed admin fees
3. Benchmark your rates annually — compare actual claim-level pricing against market standards
4. Evaluate PBM-owned pharmacy utilization — ensure mail-order and specialty pharmacy steering serves your plan, not the PBM