Medigap vs Medicare Advantage — Edward Terragni Explains the Difference
- Edward Terragni

- Apr 21
- 5 min read
Choosing the right Medicare plan feels impossible at first. The options are confusing, the deadlines are real, and one wrong move can cost you hundreds of dollars a year. You're not alone in feeling overwhelmed.
That's exactly why Edward Terragni, founder of My Family Assured and a licensed independent insurance broker with over 15 years of experience, walks every client through this decision step by step. And the question he hears most often? "What's the difference between Medigap and Medicare Advantage?"
This article answers that question completely. By the end, you'll know what each plan covers, how they differ in cost and flexibility, and which one might actually suit your lifestyle.
What Is Medicare Advantage?
Medicare Advantage — also called Part C — is an all-in-one alternative to Original Medicare. Private insurance companies approved by Medicare offer these plans, and they bundle your hospital coverage (Part A), medical coverage (Part B), and usually prescription drug coverage (Part D) into one plan.

Think of it like a managed care package. You pay a monthly premium (sometimes as low as $0), but you typically stay within a network of doctors and hospitals. Going outside that network usually costs more — or isn't covered at all.
What Medicare Advantage typically covers
Most Medicare Advantage plans include extra benefits that Original Medicare doesn't offer, such as:
Vision, dental, and hearing coverage
Fitness memberships or gym benefits
Transportation to medical appointments
Over-the-counter allowances for health products
These extras sound appealing, and they are — for the right person. But there's a catch Edward Terragni always flags for his clients: the out-of-pocket costs when you actually get sick can be significant. Copays, deductibles, and coinsurance add up quickly, especially with serious conditions.
What Is Medigap?
Medigap — also called Medicare Supplement Insurance — works differently. You keep Original Medicare as your primary coverage, and Medigap fills in the gaps it leaves behind. That's where the name comes from.
These plans are sold by private insurers, but they're standardized by the federal government. That means a Plan G from one company covers exactly the same things as a Plan G from another. The only difference is the premium price.
What Medigap typically covers
Depending on the plan letter you choose, Medigap can cover:
Medicare Part A coinsurance and hospital costs
Medicare Part B coinsurance or copayments
Blood (first 3 pints)
Part A hospice care coinsurance
Skilled nursing facility care coinsurance
Part A and Part B deductibles (plan-dependent)
The biggest advantage? Predictability. With a Medigap plan like Plan G, your out-of-pocket costs become extremely low and consistent. You pay your premium every month, and most of your medical bills are handled.
The Key Differences You Need to Know
Here's where Edward Terragni's "educate first" philosophy really shines. Most people assume Medicare Advantage is better because it costs less upfront. But the full picture is more nuanced.
Cost structure
Medicare Advantage typically has lower monthly premiums but higher out-of-pocket costs when you use healthcare. Medigap has higher premiums but dramatically reduces what you pay when you actually need care. If you visit doctors regularly or have ongoing health conditions, Medigap often saves you more money overall.
Doctor and hospital access
Medigap works with any doctor or hospital that accepts Medicare — and that's roughly 93% of physicians in the United States. You don't need referrals. You don't need network approvals. You just go.
Medicare Advantage plans use networks. HMO plans require you to stay in-network and get referrals. PPO plans offer more flexibility but still cost more outside the network. If you travel frequently, live part-time in another state, or simply value freedom of choice, this distinction is critical.
Prescription drug coverage
Medigap plans don't include prescription drug coverage. You'd need to purchase a separate Part D plan. Medicare Advantage plans usually bundle Part D in, which simplifies things — though the drug formularies vary widely between plans.
Who Should Choose Medicare Advantage?
Medicare Advantage tends to work well for people who are generally healthy, budget-conscious on monthly premiums, comfortable staying within a network, and interested in the added benefits like dental or vision.
Consider this: a retired teacher in her late 60s with no major health conditions and a tight monthly budget might thrive on a $0-premium Medicare Advantage plan. She rarely needs specialist care, her primary doctor is in-network, and the dental benefit saves her $200 a year.
That's a real-world scenario Edward Terragni sees often. The plan fits because it matches the person's actual healthcare behavior.
Who Should Choose Medigap?
Medigap is typically the better fit for people with chronic conditions or frequent healthcare needs, those who want to see specialists without referrals, frequent travelers or snowbirds spending time in multiple states, and anyone who values financial predictability over lower premiums.
Here's a practical example. A 72-year-old man managing diabetes, high blood pressure, and arthritis visits his doctor eight to ten times a year. His cardiologist is in a different city. With Medicare Advantage, his copays and specialist fees could easily add up to $3,000 or more annually. With Medigap Plan G, his total out-of-pocket exposure is close to a single deductible.
Edward Terragni calls this the "real cost" conversation — comparing not just premiums, but total annual healthcare spending based on each person's actual health usage.
Frequently Asked Questions
Can I switch from Medicare Advantage to Medigap later?
Yes, but it's not always easy. Outside of certain guaranteed issue periods — like when you first enroll in Medicare at 65 — switching to Medigap may require medical underwriting. That means insurers can charge you more or even deny coverage based on pre-existing conditions. This is one of the most important reasons to choose carefully the first time.
Do I need a separate Part D plan with Medigap?
Yes. Medigap doesn't cover prescription drugs. You'll need to enroll in a standalone Part D plan. Edward Terragni typically reviews both the Medigap plan and the Part D plan together to ensure total coverage is solid and cost-efficient.
Is one plan universally better than the other?
No — and anyone who tells you otherwise isn't giving you the full picture. The right plan depends entirely on your health situation, your budget, your preferred doctors, and your lifestyle. That's why a personalized consultation matters more than a generic recommendation.
The Bottom Line
Medigap and Medicare Advantage are both legitimate, well-designed coverage options. But they serve different needs, different health profiles, and different financial situations. The wrong choice can cost you thousands of dollars — or limit your access to the doctors you trust.
Edward Terragni's approach has always been simple: understand the person first, then find the plan that fits. In 15+ years of helping families across the U.S., he's seen how much difference the right guidance makes.
Key takeaways from this article:
Medicare Advantage bundles coverage into one plan with lower premiums but higher out-of-pocket potential
Medigap supplements Original Medicare and offers predictable, low out-of-pocket costs
Medigap gives you access to any Medicare-accepting doctor nationwide — no networks
Switching from Medicare Advantage to Medigap later may involve medical underwriting
The best plan depends on your personal health needs, budget, and lifestyle
Ready to figure out which plan is right for you? Schedule a free, no-obligation consultation with Edward Terragni at My Family Assured. You'll get a clear, honest breakdown — with no pressure and no sales pitch. Just the information you need to make a confident decision.



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