Medicare Supplement vs. Medicare Advantage: What's the Difference?

When you turn 65 and enroll in Medicare, you face an important choice: stick with Original Medicare and add a Supplement plan (Medigap), or switch to a Medicare Advantage plan (Part C). Both options have real benefits — and real trade-offs.

Original Medicare (Parts A and B) covers hospital and medical services, but it leaves significant gaps — including deductibles, copays, and coinsurance that can add up fast. A Medicare Supplement plan fills those gaps.

How it works: You pay a monthly premium for the Medigap policy. In return, it covers most or all of the out-of-pocket costs that Original Medicare doesn't.

Key advantages:

• See any doctor or specialist who accepts Medicare — no network restrictions
• Predictable costs with little to no out-of-pocket at the time of service
• Guaranteed renewable — your insurer can't cancel you for health reasons
• Great for frequent travelers or snowbirds (coverage is nationwide)

Trade-offs:

• Monthly premiums are higher than most Advantage plans
• Prescription drugs require a separate Part D plan
• No extra benefits like dental, vision, or hearing

Medicare Advantage plans are offered by private insurers approved by Medicare. They bundle Parts A and B — and usually Part D (prescriptions) — into a single plan, often with $0 or low monthly premiums.

How it works: Instead of Original Medicare paying your claims, your Advantage plan does. You typically use a network of providers and pay copays at the time of service.

Key advantages:

• Often $0 monthly premium
• Frequently includes dental, vision, hearing, and fitness benefits
• Prescription drug coverage built in
• Out-of-pocket maximum protects you from catastrophic costs

Trade-offs:

• Network restrictions — you may need referrals and must use in-network providers
• Out-of-pocket costs can be unpredictable if you use services frequently
• Plans vary significantly by county and carrier

Choose Supplement if: You want maximum flexibility, see specialists frequently, or travel often.

Choose Advantage if: You're relatively healthy, want low premiums, and value extra benefits like dental and vision.

The right choice depends on your health, your doctors, and your budget. Our licensed Medicare advisors can compare plans available in your area and help you enroll — at no cost to you.