Medicare Advantage

JEC Argues MA Overpayments May Be Flowing Through the Part B Premium Formula

A Joint Economic Committee issue brief argues Medicare Advantage overpayments may raise Part B premiums for all beneficiaries via the premium-setting formula—shifting the debate from program cost to premium fairness and increasing attention on risk-adjustment defensibility.

Laurie Shrout

13 Mar 2026 — 5 min read

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TL;DR:
A new JEC brief argues MA overpayments may increase Part B premiums through the premium-setting formula. The significance is the framing shift: payment integrity becomes a premium fairness narrative, raising scrutiny of risk-adjustment defensibility.

What you need to know

The move: The Joint Economic Committee released a March 10, 2026 issue brief arguing that Medicare Advantage overpayments raised Medicare Part B premiums by $212 per enrollee in 2025, or $13.4 billion in total. (jec.senate.gov)
Why it matters: The brief’s theory is that because Part B premiums are set off expected Part B spending, higher MA payments can spill over into premiums paid by all beneficiaries. (jec.senate.gov)
Who should care: Medicare Advantage plan leaders, risk-adjustment and coding teams, healthcare compliance and audit leaders, and Medicare policy teams. (cms.gov)

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