Medicare Supplement Plan K
50% Cost-Sharing with the Lowest Medigap Premium
What Is Medicare Supplement Plan K?
Medicare Supplement Plan K offers the lowest premiums among Medigap plans that include an out-of-pocket maximum. It covers 50% of most Medicare cost-sharing, with your total annual exposure capped at $8,000 in 2026.
Plan K is designed for people who are generally healthy and want to minimize their monthly premium while maintaining some protection against catastrophic costs. The trade-off is significant cost-sharing - you pay 50% of most Medicare-covered expenses until you hit the annual out-of-pocket maximum.
For most Medicare beneficiaries, Plan K's high cost-sharing makes it less attractive than Plan N, which offers more comprehensive coverage at a competitive premium. Plan K is best suited for very healthy individuals who rarely use healthcare and want the lowest possible monthly cost.
Key Highlights
- Lowest premium of any Medigap plan with an OOP maximum
- Built-in out-of-pocket maximum ($8,000 in 2026)
- Covers 50% of most Medicare cost-sharing
- Once you hit the OOP max, Plan K covers 100%
- Does NOT cover foreign travel emergency or excess charges
What Does Plan K Cover?
Part A hospital coinsurance & costs (up to 365 days after Medicare benefits)
Part A hospice care coinsurance or copayment
50% covered
Part A deductible ($1,736 in 2026)
50% covered ($868)
Part B coinsurance or copayment
50% covered
Part B excess charges
Part B deductible ($283 in 2026)
Blood (first 3 pints)
50% covered
Skilled nursing facility coinsurance
50% covered
Foreign travel emergency
All Medigap plans are standardized by federal law. Benefits are identical regardless of which insurer you choose.
Plan K Pros & Cons
Pros
- ✓ Lowest premium among Medigap plans with OOP protection
- ✓ Out-of-pocket maximum caps worst-case costs
- ✓ Good for very healthy people who rarely use healthcare
Cons
- ✗ You pay 50% of most Medicare cost-sharing - can be substantial
- ✗ High OOP maximum ($8,000) before full coverage kicks in
- ✗ No foreign travel or excess charge coverage
- ✗ Costs can be unpredictable with frequent medical needs
Frequently Asked Questions
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