What is the purpose of tiered copays/coinsurance within a formulary?

• A. They assign different out-of-pocket costs to medications based on their tier.
• B. They determine provider salaries.
• C. They set hospital room rates.
• D. They restrict only to generic medications.

Answer: (B)

Tiered cost-sharing in a formulary is a plan design that assigns different out-of-pocket costs to medications based on their tier. Medications are grouped into tiers (for example, generic, preferred brand, non-preferred brand, specialty), and each tier has a distinct copay or coinsurance amount. The idea is to encourage patients to choose cost-effective options while helping control overall drug spending. Generics usually have the lowest patient cost, while higher-cost or higher-value options fall into higher tiers with higher cost-sharing.

The other options miss the point: tiering doesn’t determine provider salaries or hospital room rates, and it isn’t meant to restrict only to generics—the structure covers a range of medication types, using tiers to influence choices rather than just limiting them.