If you’re approaching 65, the biggest Medicare decision you’ll make is how to cover the gaps in Original Medicare (Parts A and B). You have two main paths: a Medicare Advantage plan (Part C), or a Medicare Supplement (Medigap) paired with a standalone Part D drug plan. Neither is universally “better” — they’re built for different priorities. This guide walks through both, with the real 2026 numbers, so you can decide with confidence.
of eligible Medicare beneficiaries — over 35 million people as of early 2026 — are enrolled in Medicare Advantage, up about 1.1 million from a year earlier. The Congressional Budget Office projects the share will reach 64% by 2034.
Source: KFF / CBO, 2026What Original Medicare does and doesn’t cover
Original Medicare is Part A (hospital) and Part B (doctors and outpatient). It covers a lot — but it does not cap your out-of-pocket costs, and it leaves deductibles and coinsurance you pay yourself. Here are the official 2026 figures.
| Cost | Amount | What it is |
|---|---|---|
| Part A hospital deductible | $1,736 | Per benefit period, before Medicare pays |
| Part B deductible | $283 | Annual, before Part B pays |
| Part B coinsurance | 20% | Of most services — with no annual cap |
| Part B standard premium | $202.90/mo | Most people pay this |
That “20% with no annual cap” is the line that matters most. One serious illness could mean tens of thousands in coinsurance. Both Medicare Advantage and Medigap exist to protect you from that — in different ways.
The core trade-off
Medicare Advantage bundles your hospital, medical and (usually) drug coverage into one private plan, often with a $0 premium and extras like dental or vision. In exchange, you use the plan’s network and pay copays as you go, up to a yearly out-of-pocket maximum. Medigap works the opposite way: you pay a higher monthly premium, but the plan covers most of what Original Medicare doesn’t, and you can see any doctor or hospital in the country that accepts Medicare — no networks, no referrals.
| Medicare Advantage | Medicare Supplement | |
|---|---|---|
| Monthly premium | Often $0–low | Higher, level |
| Doctor choice | Network (HMO/PPO) | Any provider taking Medicare |
| Cost when you use care | Copays up to a yearly max | Little to none |
| Drug coverage | Usually included | Separate Part D plan |
| Extras (dental/vision) | Often included | Not included |
| Referrals | Sometimes required (HMO) | None |
The premium gap is real: the average Medicare Advantage enrollee pays about $14/month in 2026, while the average Medigap Plan G premium runs about $164/month. But remember — Medigap’s higher premium buys much lower costs when you actually use care.
What Medicare Advantage looks like in 2026
Medicare Advantage plans in 2026 lean heavily on low premiums and extra benefits. For 2026, 67% of Advantage plans with drug coverage charge no premium beyond the standard Part B premium, and nearly every plan bundles benefits Original Medicare doesn’t cover.
Those extras are real value — but remember the trade-off: you use a network, and you pay copays as you go, up to the plan’s out-of-pocket maximum. A “$0-premium plan with dental” can still cost more than Medigap in a heavy-care year, which is why we compare total expected cost, not just the premium.
Who does Medicare Advantage tend to fit?
- People who want the lowest monthly premium and are comfortable using a network.
- People who value extra benefits like dental, vision, hearing or fitness memberships.
- People whose doctors are in the plan’s network and who don’t travel out of area for care.
- People who prefer one card and one plan for medical and drug coverage.
Who does Medicare Supplement (Medigap) tend to fit?
- People who want maximum freedom to see any provider that accepts Medicare, nationwide.
- People who travel frequently or split time between states.
- People who prefer predictable costs — a higher premium, but very little to pay when they need care.
- People willing to buy a standalone Part D drug plan separately.
Don’t forget drug coverage
With most Medicare Advantage plans, Part D drug coverage is built in. With Medigap, you buy a standalone Part D plan. Either way, the plan’s drug formulary matters more than almost anything else month to month — we check your exact prescriptions against each plan before you decide, so there are no surprises at the pharmacy.
A word about switching later
When you first enroll in Medigap during your Medigap Open Enrollment window, you generally can’t be turned down or charged more for health reasons. Outside that window, Medigap plans can require medical underwriting — so switching from Medicare Advantage to Medigap later isn’t guaranteed. That’s one reason it pays to think through the choice carefully at the start, which is exactly what we help you do.
There’s no one-size-fits-all answer — the “best” plan for your neighbor may be the wrong plan for you. We compare both paths against your doctors, drugs and budget, at no cost.
Networks and provider freedom, in practice
On paper, “network vs. any provider” sounds abstract. In practice it’s the difference people feel most. With a Medicare Advantage HMO, you generally must use in-network doctors and hospitals (except in emergencies), and you may need referrals to see specialists. A PPO version gives you more flexibility to go out of network, but usually at a higher cost. Networks can also change from year to year — a doctor who’s in-network this January may not be next January, which is one reason an annual review matters. Medigap works differently: because it pays alongside Original Medicare, you can see any doctor or hospital in the country that accepts Medicare, with no networks and no referrals. For someone with established specialists, a complex condition, or a strong preference for a particular hospital system, that freedom can be worth a great deal.
Prior authorization: a growing consideration
Prior authorization — needing the plan’s approval before you receive certain services — has become one of the most-discussed differences between the two paths. Medicare Advantage plans use prior authorization to manage costs; Original Medicare generally does not. For most routine care this is a non-issue, but for higher-cost services (imaging, certain procedures, skilled nursing, some specialty drugs) it can mean delays or denials that you have to appeal. If predictable, unhindered access to care is a priority for you — for example, if you have a condition that requires frequent specialized treatment — that’s a point in Medigap’s favor. If you’re generally healthy and value low premiums and extra benefits, the trade-off may be perfectly acceptable. There’s no wrong answer; there’s only the right fit for your health.
Your costs when you actually use care
Premiums are the visible number, but what you pay when you’re sick is what really matters. With Medicare Advantage, you pay copays and coinsurance as you go — a copay for a doctor visit, a share of a hospital stay, and so on — up to the plan’s annual out-of-pocket maximum, which protects you from catastrophic costs. Those maximums can run into the thousands of dollars, so a heavy-care year on an Advantage plan can still cost you a meaningful amount before the cap kicks in. With a comprehensive Medigap plan like Plan G, you pay the Part B deductible ($283 in 2026) and then very little for covered services the rest of the year — your costs are highly predictable. The right question isn’t “which premium is lower?” but “what will I actually pay across a good year and a bad year?” — and that’s exactly the comparison we run with you.
For snowbirds and frequent travelers
Florida is full of people who split their year between states or travel often, and this is where the two paths diverge sharply. Medicare Advantage networks are local; outside your plan’s service area you’re generally limited to emergency and urgent care. If you spend months up north each year, or travel widely, a network-based plan can be a poor fit. Original Medicare with a Medigap policy travels with you nationwide — any provider that accepts Medicare, anywhere in the country. For snowbirds, that portability alone often tips the decision toward Medigap. We see this constantly in our Florida service area, and it’s one of the first questions we ask.
A simple framework to decide
When we help clients choose, we work through five questions in order: (1) Are your doctors and preferred hospitals in the Advantage plan’s network, and how stable is that network? (2) Are your prescriptions well covered under each option? (3) Do you travel or split time between states? (4) How much do you value predictable costs versus a low premium? (5) How comfortable are you with prior authorization for bigger services? Your answers usually point clearly toward one path or the other. Where they don’t, we model the numbers both ways so you can see the trade-off in dollars rather than adjectives. The goal is never to sell you a particular product — it’s to make sure you understand your choice before you make it.
Two people, two right answers
To make the trade-off concrete, picture two Jacksonville retirees. The first is 66, healthy, sees a primary-care doctor twice a year, takes one generic medication, and rarely leaves the area. For him, a $0-premium Medicare Advantage plan with dental and vision may be an excellent fit — low cost, useful extras, and his few providers are in-network. The second is 70, manages a heart condition with several specialists, spends summers with family up north, and wants to see any doctor without referrals or prior-authorization delays. For her, Original Medicare with a Medigap Plan G — higher premium, but predictable costs and nationwide freedom — is likely the better choice, even though it costs more each month. Same town, same age range, opposite answers. Neither is “wrong.” The plan has to match the person, which is the entire point of sitting down with someone who compares both.
Extra benefits: real value vs. marketing
Medicare Advantage marketing leans heavily on extras — dental, vision, hearing, fitness memberships, over-the-counter allowances, sometimes even transportation or grocery cards for qualifying members. As we noted, virtually all 2026 Advantage plans include vision, dental and hearing benefits. These can be genuinely valuable, especially the routine dental and vision coverage that Original Medicare doesn’t provide. But read the details: dental allowances often have annual caps, “free” gym memberships vary, and the flashiest extras sometimes apply only to specific plans or populations. The right way to weigh extras is to ask what you’ll actually use, value that realistically, and then compare the whole package — not to be swayed by a long list of benefits you may never touch. We help you separate the substance from the sizzle.
A word on Special Needs Plans
One category worth knowing about is the Special Needs Plan (SNP) — a type of Medicare Advantage plan designed for specific groups: people with certain chronic conditions (C-SNPs), people who live in institutions (I-SNPs), or people who qualify for both Medicare and Medicaid (D-SNPs). For those who qualify, SNPs can offer coverage and care coordination tailored to their situation, and much of Medicare Advantage’s recent growth has come from these plans. If you have a qualifying chronic condition or are dual-eligible for Medicare and Medicaid, it’s worth checking whether an SNP fits — it’s one of the situations where Medicare Advantage can be especially well-suited. We check eligibility as part of your review.
Questions worth asking before you decide
- Are all of my current doctors and hospitals in this Advantage plan’s network — and how often does that network change?
- Are every one of my prescriptions covered, and on what tier, under each option?
- What is this Advantage plan’s annual out-of-pocket maximum, and what would a bad health year actually cost me?
- Do I travel or spend part of the year in another state?
- If I choose Medicare Advantage now, what are my options and rights if I want to switch to Medigap later?
- Am I within my one-time Medigap Open Enrollment window right now?
If you can answer these confidently, you’re ready to choose. If you can’t, that’s not a failing — it’s exactly what a free review with a local agent is for. We answer every one of them with your specific plans, doctors and drugs in front of us.
Common mistakes people make with this decision
Most of the trouble we see doesn’t come from picking the 'wrong' path — it comes from choosing for the wrong reason. A little awareness up front prevents the regrets we hear about most often.
- Shopping on the premium alone. A low or $0-premium Medicare Advantage plan can still cost more in a heavy-care year than a higher-premium Medicare Supplement, once copays add up toward the out-of-pocket maximum.
- Assuming a doctor is in-network without checking. Networks change from year to year, so a plan that fit last January may not fit this one.
- Signing up because of a long list of extras — dental, vision, hearing — without asking which ones you’ll actually use.
- Overlooking prescriptions. The formulary matters more month to month than almost anything else, and it’s easy to skip until the pharmacy surprises you.
- Waiting past your one-time Medigap Open Enrollment window and assuming you can switch to a Supplement anytime — outside that window, health underwriting can apply.
- Deciding once and never revisiting it. Your health, your plan, and the networks all change; the choice deserves a fresh look each year.
None of these are hard to avoid — they simply take a few minutes of checking before you commit. If you’re weighing specific Supplement options, our look at Plan G vs N walks through how two popular plans differ in the fine print.
Still working at 65? Get the timing right first
Turning 65 doesn’t automatically mean you should leave the coverage you have. If you’re still working and covered by an employer group plan, you may be able to delay parts of Medicare without penalty — and that changes when your most valuable enrollment windows actually open. It’s a common situation in and around Duval County, where plenty of people keep working well past 65.
The piece that catches people off guard is the Medigap side. Your one-time Medicare Supplement Open Enrollment window — the stretch when a Supplement generally can’t be turned down or priced up for your health — is tied to when you enroll in Part B, not to your 65th birthday. Start Part B while you’re still on an employer plan and you may burn that window before you’re ready to use it. Coordinate the two, and you protect your future right to a Supplement. If you’re working past 65 and unsure how the pieces fit, that’s exactly the kind of timing we map out with you before anything is locked in.
Can you use both at the same time?
This is one of the most frequent questions we hear, and the answer surprises people: no, you can’t pair a Medicare Supplement with a Medicare Advantage plan. They’re two different ways of covering the same gaps, and by law a Medigap policy isn’t designed to work alongside Advantage — it works alongside Original Medicare. So you’re genuinely choosing one road or the other, not stacking them.
That’s part of why the decision deserves real thought. It isn’t a menu where you take a little of each; it’s a fork. The good news is that neither road locks you in forever — you can revisit the choice during the right windows, and our guide to switching back to Original Medicare covers how that move works when your needs change.
Will a Medicare Supplement premium stay level over time?
A Supplement’s monthly premium is higher than a typical Advantage plan’s, and a fair question is whether that number holds steady. The honest answer is that Medigap premiums can change over the years, and how they’re structured matters. Insurers generally price these policies in one of a few ways — some base the premium on your age when you buy, some on your current age, and some don’t use age as a factor at all. Each approach behaves differently as the years pass, so two policies with the same benefits can age very differently in cost.
Because the benefits within a given lettered plan are standardized, the questions worth asking are about price and the company behind it: how has this insurer adjusted premiums in the past, and how is this policy structured? Those answers tell you far more than the first-year premium alone. When we compare Supplements for you, we look past the opening number to how a plan is likely to feel to own over time — and how it stacks up against the Advantage alternative in a good year and a bad one.
What an annual review actually checks
Whichever path you choose, it isn’t a set-it-and-forget-it decision — and the reason is that the plans themselves change every year, not just your health. Each fall, plans send an annual notice describing what’s different for the coming year, and the details inside it are the ones that quietly affect you most.
- Formulary changes — a medication you take could move to a higher tier, or off the list entirely.
- Network changes — a doctor or hospital you rely on may join or leave an Advantage plan’s network.
- Cost changes — copays, the out-of-pocket maximum, or a Supplement’s premium can shift.
- Benefit changes — extras like dental or hearing allowances can be added, trimmed, or capped differently.
A yearly review is simply a chance to catch any of these before they cost you. It’s also the natural moment to ask whether the path you’re on still fits — and, if it doesn’t, to plan a change during the right window rather than react to a surprise. We’re here for that annual check-in, not just the first enrollment.
When a spouse or partner is choosing too
Medicare is an individual decision, even for couples who do almost everything together. There’s no household plan and no requirement that two people pick the same path — each person qualifies, enrolls, and chooses on their own. That trips up a lot of couples who assume they’ll be on one policy the way they might be on a single employer plan.
In practice, it’s common for two people under one roof to land in different places. One partner may lean toward a Medicare Advantage plan for the low premium and the extras, while the other, with different doctors or different priorities around predictable costs, may be better served by a Medicare Supplement. That’s not a contradiction — it’s the plan matching the person, which is the whole point. The useful move is to compare the two of you side by side, so each choice is made on its own facts rather than defaulting to whatever one spouse picks. When we sit down with a couple, we run each person’s doctors and prescriptions separately and then look at the household as a whole.
A few more questions clients ask us
Do I have to do anything if I’m happy with my plan? Technically no — most plans renew automatically. But 'happy today' and 'still the best fit next year' aren’t the same thing, because the plan can change even if you don’t. A quick review each year is the low-effort way to make sure nothing important shifted underneath you.
What if I choose a path now and my health changes later? That’s a normal reason people revisit the decision. Moving from Original Medicare to Advantage during an enrollment window is generally straightforward; moving toward a Supplement later can involve health underwriting outside a guaranteed window, so the timing is worth understanding before you need it. We’ll walk you through your options either way.
Is any of this really free to look into? Yes — reviewing your choices with us costs you nothing, and there’s no obligation to change anything. As a local independent agency, our job is to help you understand the trade-offs and choose with confidence. When you’re ready to compare both paths against your own doctors, drugs, and budget, you can reach out to us and we’ll take it from there.
How we help
As a local independent agency in Jacksonville, we sit down with you (in person, by phone or virtually), confirm your doctors and prescriptions, compare the Advantage and Medigap options available where you live, and explain the trade-offs in plain language. There’s no cost to you and no pressure — and we’re here for the yearly check-up too. If you’re approaching 65 or reviewing your coverage for next year, book a free consultation and we’ll help you choose with confidence. You may also want to read our guides to Medicare enrollment periods and the 2026 Part D drug cap.
Free, no-pressure help with medicare — in plain language.