Effective January 1, 2023, out-of-pocket costs for insulin are capped at $35 per monthly prescription among Medicare Part D enrollees under the Inflation Reduction Act (IRA). A similar cap takes effect in Medicare Part B on July 1, 2023. An estimated 1.5 million Medicare beneficiaries who use insulin would have saved $734 million in Part D and $27 million in Part B if these caps had been in effect in 2020.
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