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letrozole and ribociclib Medicare Part D Coverage

Brand name: KISQALI FEMARA CO-PACK
Dosage form
KIT
91%
of Medicare Part D plans
cover letrozole and ribociclib
5,058 of 5,530 plans
4.9
Avg. formulary tier

Formulary Tier Distribution

How Medicare Part D plans classify letrozole and ribociclib. Lower tiers = lower copays.

Tier 1 - Preferred Generic 3%
145 plans • avg $0.00/mo
Tier 2 - Generic 0%
2 plans • avg $0.00/mo
Tier 4 - Non-Preferred Drug 1%
49 plans • avg $0.00/mo
Tier 5 - Specialty 96%
4,842 plans • avg $0.00/mo
Tier 6 - Select Care 0%
20 plans • avg $0.00/mo

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letrozole and ribociclib Medicare Coverage by State

Coverage rates and average costs vary significantly by state. Click a state to see the specific plans available there.

Frequently Asked Questions about letrozole and ribociclib

91% of Medicare Part D plans cover letrozole and ribociclib. It is most commonly placed on Tier 5. Coverage varies by plan and geographic area.

Costs vary by plan. Enter your ZIP code above to see exact prices for plans in your area.

letrozole and ribociclib is placed on Tier 5 by most Medicare Part D plans. Lower tier numbers generally mean lower copays.

0% of plans require prior authorization for letrozole and ribociclib. Prior authorization means your doctor must confirm the drug is medically necessary before the plan will cover it.

Coverage statistics based on CMS formulary data for plan year 2026. Data updated regularly. Methodology →