Medicare Advantage vs. Medicare Supplement: Which Is Right for You in 2026?

Medicare Advantage vs. Medicare Supplement: Which Is Right for You in 2026?

By Rodney Cummings, Legacy Wealth Services — Licensed Insurance Advisor serving Oregon and nationwide


Turning 65 is a milestone worth celebrating — and it comes with one of the most important healthcare decisions you’ll ever make. Once you’re eligible for Medicare, you face a choice that will affect your health coverage, your budget, and your peace of mind for years to come: Medicare Advantage (Part C) or Medicare Supplement (Medigap)?

Both options have their place. But “which is better” depends entirely on your health, your lifestyle, and your financial situation. This guide breaks down the real differences — without the insurance company spin — so you can make the choice that’s right for you.


First: What Original Medicare Covers (And What It Doesn’t)

Before comparing Advantage vs. Supplement, it helps to understand the foundation both are built on.

Original Medicare — Parts A and B — covers:

  • Hospital stays (Part A)
  • Doctor visits, outpatient care, lab work, and durable medical equipment (Part B)

What it doesn’t cover is equally important:

  • Dental, vision, and hearing
  • Prescription drugs (you need Part D for that)
  • Long-term care
  • Most care outside the U.S.
  • 20% of all Part B costs — with no cap

That last point is critical. Original Medicare’s 20% coinsurance has no out-of-pocket maximum. A serious illness, a hospital stay, or ongoing treatment could cost you tens of thousands of dollars out of pocket. That’s the gap both Medicare Advantage and Medicare Supplement are designed to fill — just in very different ways.


Medicare Advantage (Part C): All-in-One Coverage

Medicare Advantage plans are offered by private insurance companies approved by Medicare. When you enroll in an Advantage plan, the government pays that company to cover your Medicare benefits — and the company typically adds extra coverage on top.

What You Get

  • All Medicare Parts A and B benefits bundled into one plan
  • Usually includes Part D (prescription drugs)
  • Extra benefits that Original Medicare doesn’t cover: dental, vision, hearing, fitness memberships (like SilverSneakers), and sometimes transportation or meals after a hospitalization
  • An annual out-of-pocket maximum — once you hit it, the plan pays 100% for the rest of the year

How Pricing Works

  • Premium: Often $0/month (though you still pay your Part B premium, which is $202.90/month in 2026 for most people)
  • Cost-sharing: Copays and coinsurance for visits, procedures, and prescriptions
  • Out-of-pocket maximum: Varies by plan — typically $3,500–$8,900 per year in-network

The Catch: Network Restrictions

Medicare Advantage plans are network-based — HMO or PPO. That means:

  • You typically need a primary care physician (PCP) who coordinates your care
  • Specialists require referrals (HMO) or may cost more out-of-network (PPO)
  • If you travel frequently or live in a different state part of the year, your coverage options may be limited to emergency care

Medicare Advantage Is Often a Good Fit If You:

  • Are generally healthy and don’t anticipate heavy medical use
  • Have a tight budget and want to minimize monthly premiums
  • Want bundled coverage (drugs, dental, vision) in one plan
  • Stay close to home and have preferred doctors in-network
  • Like the predictability of copays over surprise bills

Popular carriers in Oregon: Aetna, Humana, UnitedHealthcare, Cigna, Anthem/BCBS, WellCare, Mutual of Omaha, Molina Healthcare


Medicare Supplement (Medigap): Maximum Flexibility, Predictable Costs

Medicare Supplement plans work differently. Instead of replacing Original Medicare, they work alongside it — filling in the “gaps” left by Parts A and B. You keep your Medicare card; the Supplement plan pays what Medicare doesn’t.

What You Get

  • Pays your Medicare coinsurance and copays — often 100% of what Medicare approves
  • No network restrictions — see any doctor or specialist in the U.S. who accepts Medicare (and most do)
  • Predictable costs — once you know your monthly premium, you can budget with confidence
  • Freedom to travel — some plans include emergency coverage internationally

Medicare Supplement plans are standardized by the federal government — every insurer offering Plan G must provide the same core benefits. The difference is the price and the company’s financial strength.

PlanWhat It CoversBest For
Plan GEverything Medicare covers except the Part B deductible ($257 in 2026)Most new enrollees — maximum coverage at a reasonable premium
Plan NCovers most gaps; small copays ($20 office visits, $50 ER)Healthy enrollees who want lower premiums and don’t mind small copays
Plan FCovers everything including Part B deductibleOnly available to those eligible before January 1, 2020

How Pricing Works

  • Premium: $80–$250+/month depending on age, plan, and carrier
  • Part B deductible: $257/year (with Plan G, this is your only out-of-pocket exposure)
  • Prescription drugs: Not included — you’ll need a standalone Part D plan

Medicare Supplement Is Often a Good Fit If You:

  • Have ongoing health conditions or see specialists regularly
  • Want the freedom to see any Medicare-accepting doctor in the U.S.
  • Travel frequently or spend part of the year in another state
  • Prefer predictable, fixed costs over variable copays
  • Prioritize simplicity and don’t want to manage a network

Side-by-Side Comparison

FeatureMedicare AdvantageMedicare Supplement
Monthly premium$0–$100 (often low)$80–$250+
Network restrictionsYes (HMO or PPO)None — any Medicare provider
Out-of-pocket max$3,500–$8,900/yearVery low (often just Part B deductible)
Drug coverageUsually includedRequires separate Part D
Dental/Vision/HearingOften includedNot included
Best forHealthy, budget-consciousFrequent users, travelers, those who want predictability
Switching flexibilityAnnual open enrollmentMay require medical underwriting after initial enrollment

The Switching Trap: Why Your Initial Choice Matters More Than You Think

Here’s something many people learn the hard way: switching from Medicare Advantage to a Medicare Supplement plan after your initial enrollment period often requires medical underwriting.

That means if you develop a chronic condition — diabetes, heart disease, COPD — an insurer can decline your application for Medigap coverage or charge significantly higher premiums. In Oregon, there are some state-specific protections, but they’re limited.

The bottom line: If you’re turning 65 and think you might want a Supplement plan at some point, it’s often easier to start there during your guaranteed issue window.


What About Costs Over Time?

Many people choose Medicare Advantage for the low (or $0) premium and then discover that frequent doctor visits, specialist referrals, and prescriptions add up quickly. At the same time, Supplement premiums increase with age.

There’s no universal answer — but here’s a useful framework:

  • If you’re healthy today but have family history of serious illness, consider a Supplement. The predictability is worth the premium.
  • If you’re on a tight fixed income and are generally healthy, Advantage’s lower premiums may make sense — just know the network and out-of-pocket max.
  • If you travel or live in multiple states, a Supplement is almost always the better choice.

Oregon-Specific Considerations

Oregon residents have a few important protections:

  1. Oregon’s Birthday Rule: If you have a Medicare Supplement plan, you have a 60-day window starting on your birthday each year to switch to an equal or lesser Medigap plan — without medical underwriting. This gives you more flexibility than most states.

  2. Medicare plan availability: Plan availability and carrier options vary by county in Oregon. Urban areas (Portland metro, Salem, Eugene) typically have more Advantage plan options than rural areas.

  3. Oregon Insurance Division: Oregonians can access free, unbiased counseling through the Oregon Senior Health Insurance Benefits Assistance (SHIBA) program at 800-722-4134.


Don’t Decide in a Vacuum

The Medicare decision rarely happens in isolation. If you’re nearing 65, you’re also likely thinking about:

  • Social Security timing — when to start benefits affects your income, which affects what you can afford
  • Supplemental coverage — dental, vision, and hearing aren’t covered by either Medicare type; ancillary plans fill that gap
  • Long-term care planning — Medicare covers very little long-term care; separate planning is often needed

At Legacy Wealth Services, we help clients look at the full picture — not just the Medicare decision in isolation, but how it fits with your retirement income plan, your estate planning, and your overall financial health.


Ready to Find Your Best Medicare Option?

Choosing between Medicare Advantage and Medicare Supplement is one of the most consequential financial decisions you’ll make at retirement. The right answer depends on your health history, your doctors, your budget, and your lifestyle — and it deserves more than a 15-minute phone call with a call center agent.

I’m Rodney Cummings, a licensed insurance advisor based in Happy Valley, Oregon. I work with leading carriers — Aetna, Humana, UnitedHealthcare, Cigna, Anthem/BCBS, WellCare, Mutual of Omaha, and Molina — to find the plan that fits your life, not just your budget.

📞 Call or text: 503-832-8555 📧 Email: rod@legacywealthservices.com 🌐 Schedule a free consultation: legacywealthservices.com/schedule

Or download our free guide: Medicare Made Simple: Your 2026 National Guide


Rodney Cummings is a licensed insurance advisor serving clients in Oregon and nationwide. OR License #18847712 · NPN: 18847712. Legacy Wealth Services, 16680 SE Pleasant Valley Pkwy, Happy Valley, OR 97086.