Plan comparisons
Medicare Supplement vs. Medicare Advantage
Understand the core differences between Medicare Supplement insurance and Medicare Advantage before comparing local coverage options.
The short answer
What is the difference between Medicare Supplement and Medicare Advantage?
Medicare Supplement insurance, also called Medigap, helps pay certain out-of-pocket costs under Original Medicare. Medicare Advantage is a Medicare-approved plan offered by a private company that provides Part A and Part B coverage and usually has its own provider network, rules, and cost sharing. These are different coverage paths, not plans you generally use together.
How Medicare Supplement works
With Original Medicare, you can choose a separate Medicare Supplement policy to help with certain deductibles, copayments, and coinsurance. You may also need separate Part D prescription drug coverage. Medicare Supplement policies are standardized differently by state, and availability, premiums, and enrollment protections vary.
How Medicare Advantage works
Medicare Advantage plans combine Part A and Part B coverage through a private insurer. Many plans include prescription drug coverage and may offer additional benefits. Provider networks, referrals, prior authorization, premiums, copays, and the annual out-of-pocket limit can vary by plan and location.
Questions to compare before choosing
- ✓Which path works with the doctors, hospitals, and travel needs that matter to you?
- ✓What are the premium, deductible, copay, coinsurance, and annual cost protections?
- ✓How would prescription drug coverage work with each option?
- ✓What enrollment rights or underwriting rules apply to your situation?
- ✓Which plan details need current verification before enrollment?
Frequently asked questions
Can I have Medicare Supplement and Medicare Advantage at the same time?
No. It is generally not legal for someone to sell you a Medicare Supplement policy if you already have Medicare Advantage, except in limited transition situations.
Is Medicare Supplement better than Medicare Advantage?
Neither is universally better. The appropriate path depends on your access needs, budget, prescriptions, travel, available plans, and enrollment rights.
Does Medicare Advantage include prescription drug coverage?
Many Medicare Advantage plans include Part D prescription drug coverage, but not all do. Review the specific plan's current details.
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Last reviewed August 13, 2026. Medicare rules and plan details can change; verify current information with Medicare, Social Security, official plan materials, and properly licensed professionals.