Medicare

Medicare Supplement vs Medicare Advantage

Should you choose Medigap or Medicare Advantage? Compare both options side-by-side to understand which approach fits your healthcare needs and budget.

Two Ways to Get Medicare Coverage

When you're eligible for Medicare, you have two fundamental approaches to coverage. Understanding the difference is the most important decision you'll make about your healthcare.

Option 1: Original Medicare + Medigap + Part D

Keep Original Medicare (Part A + B) as your base coverage. Add a Medicare Supplement (Medigap) policy to cover deductibles, copays, and coinsurance. Add a Part D plan for prescription drug coverage. Three pieces that work together.

Option 2: Medicare Advantage (Part C)

Replace Original Medicare with a single Medicare Advantage plan from a private insurer. Most plans bundle drug coverage, dental, vision, and hearing into one plan with one card and one premium.

Side-by-Side Comparison

FeatureMedigap + Part DMedicare Advantage
Monthly Premium$100-300+ for Medigap + $0-80 for Part DOften $0 (or low)
Out-of-Pocket CostsVery low — Medigap covers most costsCopays at each visit ($10-50+)
Drug CoverageSeparate Part D plan requiredUsually included (MAPD)
Dental/Vision/HearingNot includedUsually included
Doctor NetworkAny Medicare doctor nationwideHMO/PPO network required
Referrals NeededNoHMO: Yes, PPO: No
OTC AllowanceNot includedOften $50-200+ per quarter
Best ForFrequent healthcare users, travelersHealthy, budget-conscious, want extras

When to Choose Medigap

  • You see multiple specialists or have chronic conditions
  • You travel frequently or live in multiple states
  • You want predictable healthcare costs with minimal surprises
  • You value the freedom to see any doctor without referrals
  • You can afford a higher monthly premium for lower out-of-pocket costs

When to Choose Medicare Advantage

  • You want the lowest possible monthly premium
  • You want drug, dental, vision, and hearing in one plan
  • You're comfortable using an in-network doctor
  • You value extra benefits like OTC allowance, gym membership, transportation
  • You're generally healthy and don't use healthcare services frequently

The Bottom Line

There's no universally “better” option. The right choice depends on your health, budget, doctors, and how you use healthcare. A licensed agent can review your specific situation and help you compare both approaches — for free, at your local pharmacy.

Frequently Asked Questions

What is the main difference between Medicare Supplement and Medicare Advantage?

Medicare Supplement (Medigap) pays the out-of-pocket costs that Original Medicare doesn't cover — like deductibles and coinsurance. You keep Original Medicare and add Medigap on top. Medicare Advantage replaces Original Medicare entirely with a private plan that bundles everything, often including drug coverage, dental, and vision.

Can I have both Medicare Supplement and Medicare Advantage?

No. You cannot have both at the same time. If you have a Medigap policy and switch to Medicare Advantage, your Medigap policy will be suspended or canceled. You must choose one approach or the other.

Which is cheaper — Medigap or Medicare Advantage?

Medicare Advantage plans often have $0 premiums but charge copays when you use services. Medigap has a monthly premium ($100-300+) but covers most out-of-pocket costs so you pay little at the doctor. If you're healthy and rarely use services, MA may cost less. If you have chronic conditions and see specialists often, Medigap may save money overall.

Do Medicare Supplement plans cover prescription drugs?

No. Medigap plans do not cover prescription drugs. You need a separate Part D plan if you choose Medigap. Medicare Advantage plans (MAPD) typically include drug coverage built in.

Can I switch from Medicare Advantage to Medigap?

You can switch, but you may not get guaranteed issue rights for Medigap after your initial enrollment period. Some states require guaranteed issue, but most do not. If you're past your Medigap open enrollment window, you may face medical underwriting or be denied coverage.

Which option gives me more doctor choice?

Medigap with Original Medicare lets you see any doctor who accepts Medicare nationwide — no network restrictions. Medicare Advantage plans have networks (HMO requires referrals, PPO has in/out-of-network costs). If you travel frequently or see specialists in different states, Medigap offers more flexibility.

Ready to find the right plan?

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Related Topics

Medicare Advantage Explained →Medicare Part D →Compare Plans in Your Area →Talk to an Agent →Enrollment Periods →Get Help at Walgreens →