Medicare Plan Terminations Hit 4.3 Million as Part D Market Shrinks
KFF reports 4.3 million Medicare beneficiaries will lose their plans by 2026, including 3.1 million MA-PD and 1.2 million PDP enrollees. CVS Health and Health Care Service Corp. lead PDP terminations. Centene reported PDP growth, while Humana, UnitedHealth, and CVS face MA-PD terminations. Average PDP choices drop to 9 in 2027 from 11 in 2026.
How this was made

The 30-second read
Why it matters
The data signals a shrinking market for Medicare drug plans, pressuring insurers with exposure to terminated plans while rewarding those retaining enrollment.
Market read
First‑report data on Medicare plan terminations highlights enrollment risk for major insurers, suggesting near‑term stock pressure.
What to watch
Potential policy changes beyond the Part D Premium Stabilization Demonstration may further alter market dynamics.
Background
KFF analysis shows 4.3 million Medicare beneficiaries will lose coverage at year‑end, driven by plan exits and reduced PDP options.
Ticker impact
Centene reported PDP membership growth but also a 6% decline in overall Medicare membership amid plan terminations.
likely downside as market prices in reduced Medicare enrollment
Enrollment declines suggest lower premium revenue; investors may react negatively.
Elevance Health saw a 15.5% drop in MA membership while reporting higher operating revenue.
potential pressure as investors weigh membership decline against revenue growth
Sharp membership fall signals possible future revenue headwinds.
Humana accounts for 19% of the 2.8 million MA‑PD enrollees losing coverage.
likely downside as market anticipates enrollment loss impact
No specific financial data, but exposure to terminations suggests risk.
UnitedHealth Group represents 13% of the MA‑PD enrollees facing plan terminations.
possible modest pressure pending further enrollment data
Impact is indirect; investors may monitor enrollment trends.
CVS Health's SilverScript Choice PDP holds 81% of the PDP enrollees losing coverage.
downward pressure as market prices loss of PDP volume
Significant PDP termination directly hits CVS's pharmacy benefit business.
Market effects
Medicare Advantage and stand‑alone drug plan markets face contraction, potentially reshaping insurer revenue models.
U.S. health‑insurance sector may see modest valuation adjustments.
Limited to U.S. insurers; no direct global spillover.
Counterpoint
The terminations could accelerate consolidation, creating opportunities for insurers that acquire exiting PDP assets at discount.
Key entities
- companyCentene Corporation
Health insurer with PDP growth but overall Medicare membership decline.
- companyElevance Health
Health insurer experiencing MA membership loss.
- companyHumana Inc.
Insurer accounting for the largest share of MA‑PD terminations.
- companyUnitedHealth Group
Insurer with significant MA‑PD terminations.
- companyCVS Health Corporation
Provider of the largest PDP termination (SilverScript Choice).



