Best Medicare Supplement Plans at Age 68 vs Medicare Advantage – Which One Actually Saves You Money?
Short Summary
At 68, one of the most consequential financial decisions you’ll make is whether to go with Medicare Supplement (Medigap) or Medicare Advantage. The difference can easily amount to thousands of dollars annually — and the “cheaper upfront” option is not always the cheaper long-term option. I researched both paths exhaustively, enrolled in a Medicare Supplement Plan G, and am now in a position to explain the real trade-offs without the insurance agent spin. This article covers what each plan actually covers, the cost comparison, who benefits from each, and the questions most people don’t ask until it’s too late.
Why Does the Medicare Supplement vs. Advantage Decision Matter So Much at 68?
I turned 65 already confused by Medicare. The letters, the enrollment windows, the Part A, Part B, Part D, the Advantage plans advertised on TV with the $0 premium and the “bonus benefits” — it felt designed to be confusing. I made a somewhat rushed decision at 65, and by 68 I was paying enough in out-of-pocket costs that I sat down and properly re-evaluated everything.
Here’s the core issue most people don’t grasp: Original Medicare (Parts A and B) has no annual out-of-pocket maximum. If you have a catastrophic health event — say, a major surgery followed by a lengthy hospital stay — you could owe tens of thousands of dollars under Original Medicare alone. Both Medigap and Medicare Advantage are attempts to solve that problem, but they solve it in fundamentally different ways.
This comparison is related to my broader insurance review for 68-year-olds. For life insurance comparisons in the same series, see: I Compared Every Major Insurance Company at 68 – These 3 Destroyed the Others.
What Is the Actual Difference Between Medicare Supplement and Medicare Advantage — Explained Simply?
Medicare Supplement (Medigap)
Works alongside Original Medicare (Parts A & B). You keep your Original Medicare benefits — which means you can see any doctor, any hospital, anywhere in the country that accepts Medicare. Medigap pays some or all of what Medicare doesn’t cover (deductibles, coinsurance, copays).
- Any Medicare-accepting provider nationwide
- No referrals needed for specialists
- Standardized plans (same Plan G regardless of company)
- Higher monthly premium, lower (often zero) out-of-pocket at time of service
- Separate Part D drug plan needed
Medicare Advantage (Part C)
Replaces Original Medicare through a private insurance company. Usually has a lower (sometimes $0) monthly premium, but limits you to a network of providers. You pay copays and coinsurance at time of service, up to an annual out-of-pocket maximum.
- Network-limited (HMO or PPO)
- Often requires primary care referrals
- Lower monthly premium
- Annual out-of-pocket max ($3,000–$8,000+ typically)
- Usually includes Part D drug coverage
- Extra benefits (dental, vision, hearing in some plans)
The simplest summary: Medigap = higher monthly cost, minimal out-of-pocket surprises, use any doctor. Medicare Advantage = lower monthly cost, but potential for large out-of-pocket costs if you get seriously ill, and limited to a network. Neither is universally better — it depends entirely on your health situation and risk tolerance.
How Do the Actual Costs Compare in 2026 — Medicare Supplement vs. Medicare Advantage at Age 68?
Real numbers · Two health scenarios · Age 68
Scenario A: Relatively Healthy Year (1–2 doctor visits, no major procedures)
Scenario B: Serious Health Event (surgery, extended hospital stay, specialist care)
📊 What This Table Actually Tells You
In healthy years, Medicare Advantage is typically cheaper. In serious illness years, Medigap is often significantly cheaper — sometimes by $5,000–$7,000. The question you’re really answering is: How comfortable are you with financial uncertainty around your healthcare costs? If you can absorb a $7,000 surprise in a bad health year, Advantage may be fine. If that would cause real financial stress, Medigap’s predictability is worth the higher monthly premium.
Which Medicare Supplement Plan Is Best at 68 — Plan G, Plan N, or Something Else?
If you decide Medigap is the right path, you then face a second choice: which Medigap plan letter? The most popular options for new enrollees at 68 are Plan G and Plan N. Here’s the comparison:
🏆 My Pick: Plan G — Here’s Why
Plan G is the most comprehensive Medigap plan available to new enrollees today (Plan F was discontinued for new enrollees after 2020). The $240 Part B annual deductible that Plan G doesn’t cover is trivially small compared to the peace of mind of knowing that almost every legitimate Medicare-covered expense is paid. For someone at 68 who expects to use healthcare regularly, Plan G’s premium difference over Plan N is usually worth it within the first major specialist visit or outpatient procedure.
Who Should Choose Medicare Supplement — and Who Is Better Off With Medicare Advantage?
Choose Medigap (Plan G) If You…
- Have one or more chronic conditions requiring regular care
- See specialists frequently (cardiologist, endocrinologist, etc.)
- Travel frequently within the U.S. or internationally
- Want predictable, fixed healthcare costs each month
- Prefer being able to see any Medicare-accepting doctor, no referrals
- Can afford a higher monthly premium now to avoid large bills later
- Have a family history of serious illness
Choose Medicare Advantage If You…
- Are in excellent health with minimal healthcare use
- Are comfortable with network restrictions and referrals
- Want extra benefits (dental, vision, gym membership)
- Have limited income and need the lowest monthly cost
- Live in an area with robust, high-quality Advantage plan options
- Have the financial cushion to absorb an $8,000 out-of-pocket max in a bad year
The uncomfortable reality: Medicare Advantage plans are heavily marketed because insurance companies earn more per enrollee from them. The $0 premium ads are real, but the out-of-pocket exposure can be 5–10× what you’d pay with Medigap in a serious health year. Make sure you understand the annual out-of-pocket maximum before you enroll in any Advantage plan.
Which Companies Offer the Best Medicare Supplement Plan G Rates at 68?
Rate comparison · Plan G · Age 68 · Non-smoker
*Approximate Plan G rates for 68-year-old, non-smoker. Premiums vary significantly by state, county, and tobacco use. Rate increase history is a critical factor — a lower initial premium from a company with aggressive rate increases may cost more over time.
Important: Because Medigap plans are standardized (every company’s Plan G covers the same things), the only differences between companies are price and rate increase history. Always ask a broker for the company’s rate increase history over the last 5 years. A company charging $10/month less today with a pattern of 10%+ annual increases may cost you significantly more by year three.
How Do You Actually Choose and Enroll — My Step-by-Step Guide for 68-Year-Olds
Confirm you have Part A and Part B active
You must be enrolled in Original Medicare (Parts A and B) to buy either a Medigap policy or Medicare Advantage plan. If you’re still on employer coverage at 68, your timeline and enrollment windows are different — confirm your specific situation with Medicare directly at 1-800-MEDICARE.
Use Medicare.gov’s Plan Finder for Advantage comparison
Enter your ZIP code at medicare.gov to see all Advantage plans available in your specific area. Plans vary enormously by location. The plan advertised nationally might not be available where you live, or might have a different network and cost structure locally.
For Medigap, use an independent broker — not a captive agent
An independent broker can compare Plan G rates from multiple companies in your state. A captive agent only offers one company’s products. The broker costs you nothing (paid by the insurer), so there’s no reason not to use one. Specifically ask them to show you rate increase history for each company they recommend.
Consider your own health honestly before deciding
Look back at your last 3 years of healthcare usage. How often did you see specialists? Were there any hospitalizations or procedures? What do you expect in the next 5–10 years given your family history and current conditions? Your realistic health forecast — not the optimistic one — should drive this decision.
What I Chose and Why — My Honest Recommendation
I went with Mutual of Omaha’s Plan G at $142/month (my specific state’s rate), plus a standalone Part D drug plan for $31/month. Total Medicare-related monthly cost: $358 (including Part B). That’s predictable and fixed.
The Advantage plan available in my area had a $0 premium but a $7,550 annual out-of-pocket maximum and required referrals to see the cardiologist I’ve been seeing for three years. That’s a non-starter for me — I value continuity of care and cost predictability over a lower monthly premium.
💭 If I Were in Your Shoes…
If you’re currently healthy at 68 and see a doctor twice a year with no specialists — Medicare Advantage deserves serious consideration. Put the premium savings ($100–$150/month) into a dedicated health savings fund. If that fund never gets touched, you’ve come out ahead. But if you’re already managing chronic conditions or value the freedom to see any specialist without a gatekeeper — go Medigap Plan G. The predictability is worth every dollar of the premium.
Frequently Asked Questions About Medicare at 68
📚 More in This Series:
- I Compared Every Major Insurance Company at 68 – These 3 Destroyed the Others ← Full Guide
- No Medical Exam Life Insurance at 68 – 5 Companies Approved Me Instantly
- Term Life Insurance Quotes for Over 60 in 2026 – 12 Companies Compared
- Best Final Expense Insurance for Seniors Over 60
- Cheap Car Insurance for Seniors Over 65 in 2026
