Part D Patient Access 2025: Plan Options, Premiums, and Drug Formulary Changes





In this deck, Avalere provides an overview of Part D patient access, presenting key changes to Part D under the Inflation Reduction Act and how these changes will affect the following in 2025:

• Part D plan options
• Enhanced plans
• Low-income subsidy benchmark plans
• Part D prescription drug plan premiums
• Shifts in cost sharing and utilization management
• The percentage of all drugs covered on formularies
• Copayment and coinsurance payment rates by drug tier
• Use of coinsurance by plan type
• Rates of prior authorization for brand drugs from 2024 into 2025

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