Comparing PBM Proposals: Seven Questions Beyond the Headline Discount

A compelling discount does not explain an entire pharmacy proposal. The contract definitions, included services, financial arrangements, and member experience determine what the offer means for a particular plan.

The FTC's work on pharmacy benefit managers highlights the complexity of relationships and incentives across the pharmacy market. For an employer reviewing proposals, that is a reason to ask precise questions rather than rely on a label such as traditional, transparent, or pass-through.

1. Are the Proposals Using the Same Inputs?

Use a consistent claims period, population, and benefit design when available. Record exclusions and any adjustments to the claim file. If the inputs differ, ask for a reconciled comparison before interpreting the results.

2. How Are Pricing Categories Defined?

Request the contractual definitions of brand, generic, specialty, retail, and mail claims. Identify which claims are excluded from guarantees and how performance is measured. The same headline percentage can describe different underlying baskets of claims.

3. Which Fees Are Included?

List administrative, clinical, implementation, reporting, and other disclosed fees. State the charging basis for each. A per-claim fee and a per-member fee should not sit in the same comparison column without conversion assumptions.

4. How Do Rebates and Other Payments Work?

Ask what is passed through, what may be retained, when payments arrive, and which claims qualify. Distinguish a contractual guarantee from an estimate. When modeling net cost, make sure rebates have not already been deducted from another quoted figure.

5. What Changes for Members?

Review the pharmacy network, formulary, specialty dispensing arrangements, and transition support. Ask the proposing PBM to identify potential disruption and explain its proposed response. Financial comparisons should make room for access and continuity considerations.

6. What Reporting and Review Rights Are Available?

Clarify the data you will receive, its frequency, definitions, and any restrictions or costs. Ask how contract performance can be reviewed and how discrepancies are resolved.

7. Who Owns Implementation?

Document eligibility responsibilities, testing, communications, deadlines, and escalation contacts. A proposed effective date should be supported by a practical implementation schedule.

Build an Explainable Recommendation

Use Clyde's PBM Center to organize the current arrangement, supporting documents, and competing quotes. Separate vendor-provided figures from your own assumptions. A recommendation is stronger when it explains both the financial comparison and the operational tradeoffs.

Contract terms vary. This checklist supports discussion and does not replace a review of the actual agreement.

Further reading: FTC report on pharmacy benefit managers.