A plain-English comparison of the five Medicare coverage paths seniors actually choose from in 2026 — Original Medicare with Medigap, Advantage HMO and PPO, high-deductible Plan G, and low-income options — with real 2026 premiums, deductibles and out-of-pocket limits.
Plain-English guide to Medicare, Medigap, Advantage, and Part D — 2026 rates included.
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If you are choosing Medicare coverage for 2026, the best plan for most seniors is one of two paths: Original Medicare plus a Medigap Plan G policy plus a stand-alone Part D drug plan if you want predictable bills and the freedom to see any doctor who accepts Medicare, or a well-rated Medicare Advantage HMO if you want a low or $0 monthly premium with drug, dental (learn more about medicare and assisted living: what's covered and what's not) (learn more about medicare advantage vs medicare supplement) (learn more about retirement income strategies for 2025) (learn more about retirement planning assessment: evaluate your readiness) (learn more about allianz 222 annuity review (2026): pros, cons, returns, and is it worth it?) (learn more about tax-free retirement income: complete guide) and vision benefits bundled in. We compared the five coverage paths seniors actually choose from across cost predictability, provider access, drug coverage, monthly premium and the ability to switch later. Everyone pays the standard Part B premium — $202.90 a month in 2026 — no matter which path you pick, so the real decision is what you add on top of it.
There is no single "best" Medicare plan, because the right answer depends on your doctors, your prescriptions and how much financial surprise you can absorb. So instead of ranking carriers, we ranked the five coverage structures against the criteria that actually change what you pay.
| Criteria | Weight | Why It Matters |
|---|---|---|
| Cost predictability | High | Original Medicare alone has no annual out-of-pocket limit. A cap is the single biggest protection you can buy. |
| Provider access | High | Medigap works with any provider who accepts Medicare; Advantage plans use networks and prior authorization. |
| Drug coverage and cap | High | Part D out-of-pocket costs are capped at $2,100 in 2026 — but only if you have drug coverage at all. |
| Total monthly premium | Medium | Medigap premiums are real money; Advantage plans shift that cost to the point of care instead. |
| Ability to switch later | Medium | Medigap is medically underwritten after your one-time open enrollment window. Advantage is not. |
Data sources: CMS 2026 Parts A & B premium and deductible fact sheet, the CMS CY2026 Part D redesign instructions, the CMS CY2026 Medigap high-deductible announcement, and KFF's 2026 Medicare Advantage enrollment and out-of-pocket limit analyses.
Best for: Seniors who want to keep their own doctors, travel or snowbird, or cannot tolerate surprise medical bills
Typical monthly cost beyond Part B: About $220 for Plan G at age 65, plus roughly $34 for a Part D plan
What you still owe: The $283 Part B deductible in 2026
Plan G is the most popular Medigap policy for people new to Medicare, and for a reason: after you pay the $283 Part B deductible, it covers the Part A hospital deductible of $1,736, all Part B coinsurance, and the 20% Original Medicare never pays. Your medical costs become a known monthly number instead of a percentage of whatever happens to you. Add a stand-alone Part D plan — averaging about $34 a month in 2026 — and your drug spending is capped at $2,100.
This is the right path if you see specialists, split your year between two states, or have a condition that makes a network restriction genuinely risky. It is the wrong path if the premium would strain your monthly budget — a plan you cannot afford in year three is not protection. If you are comparing specific carriers, our AARP/UnitedHealthcare Medigap review walks through how one of the largest lineups actually prices.
Best for: Seniors who are comfortable using a local network and want extras included
Typical monthly cost beyond Part B: $0 to about $30
2026 average in-network out-of-pocket limit: $4,636 for HMOs
More than half of eligible Medicare beneficiaries — 55% in 2026 — are now in Medicare Advantage, and the average premium across all enrollees is about $14 a month. An HMO bundles your Part A, Part B and usually Part D into one plan with one card, and most include dental, vision, hearing and fitness benefits Original Medicare does not cover. The trade you make is real: you use the plan's network, and services often require prior authorization.
An HMO works well if your doctors are already in one local system, you take few or inexpensive drugs, and you value the extras. It works poorly if you spend months away from home or want to keep a specialist outside the network. Check the plan's star rating and its drug formulary against your actual prescriptions before enrolling, not after.
Best for: Seniors who want some out-of-network access but cannot justify a Medigap premium
Typical monthly cost beyond Part B: $0 to about $60
2026 average in-network out-of-pocket limit: $6,592 for PPOs
A Medicare Advantage PPO lets you go out of network and still get partial coverage, which HMOs generally do not. That flexibility is priced in: the average in-network out-of-pocket limit for PPOs in 2026 is $6,592, versus $4,636 for HMOs, and out-of-network care runs against a separate, higher limit. By law, no Advantage plan may set an in-network limit above $9,250 in 2026, or above $13,900 combined in- and out-of-network.
A PPO is the middle path — take it if you want Advantage economics but refuse to be locked to one network. If your main concern is cost rather than access, an HMO with a lower out-of-pocket limit usually protects you better for the same money.
Best for: Healthy seniors who want Medigap freedom at an Advantage-like premium
Typical monthly cost beyond Part B: Roughly $30 to $75 for the policy, plus a Part D plan
2026 deductible: $2,950 before the policy pays
High-Deductible Plan G is the most underused option in Medicare. It gives you the same any-doctor access and the same benefits as standard Plan G, but you pay the first $2,950 of Medicare-covered costs in 2026 yourself. In exchange, the premium drops to roughly $30 to $75 a month. Your worst-case year is capped at about $2,950 plus premiums — comparable to an Advantage plan's out-of-pocket limit, but with no network.
This suits a healthy 65- to 70-year-old with savings to cover the deductible who wants provider freedom without a $220 monthly bill. It is a poor fit if a $2,950 bill in January would be a hardship, or if you would delay care to avoid meeting the deductible.
Best for: Seniors with limited income and assets, including anyone who also qualifies for Medicaid
Typical monthly cost beyond Part B: Often $0, and the Part B premium itself may be paid for you
If your income is modest, the most valuable move is not choosing between plan types — it is checking whether you qualify for help paying for the plan you already have. Medicare Savings Programs such as QMB, SLMB and QI can cover your $202.90 Part B premium and, at the QMB level, your deductibles and coinsurance. Extra Help lowers Part D costs. Dual-eligible special needs plans (D-SNPs) then coordinate Medicare and Medicaid in one plan, and they drove most of Medicare Advantage's 1.1 million enrollee growth into 2026.
Apply if your income is anywhere near the limits — many people who qualify never apply. Our guide to Advantage plans for low-income seniors covers what to look for once you know your eligibility.
| Coverage Path | Typical Monthly Cost Beyond Part B | Provider Access | 2026 Annual Out-of-Pocket Exposure | Best For |
|---|---|---|---|---|
| Original + Plan G + Part D | ~$254 ($220 + $34) | Any Medicare provider | $283 deductible + up to $2,100 drugs | Predictability and travel |
| Advantage HMO | $0–$30 | Local network only | $4,636 average in-network | Low premium plus extras |
| Advantage PPO | $0–$60 | Network preferred, out-of-network partial | $6,592 average in-network | Flexibility on a budget |
| Original + HD Plan G + Part D | ~$64–$109 | Any Medicare provider | $2,950 deductible + up to $2,100 drugs | Healthy savers |
| D-SNP / Savings Program | $0 (Part B may be covered) | Narrow network | Often minimal | Limited income |
This comparison uses the CMS 2026 Parts A & B premiums and deductibles fact sheet for the $202.90 Part B premium, $283 Part B deductible and $1,736 Part A deductible; CMS CY2026 Part D redesign instructions for the $2,100 out-of-pocket cap; the CMS CY2026 Medigap high-deductible announcement for the $2,950 figure; and KFF's 2026 Medicare Advantage analyses for enrollment share, average premiums and out-of-pocket limits. Medigap premium ranges are market averages at age 65 and vary widely by state, age, gender and tobacco use — always price your own ZIP code. Last updated: September 24, 2026. We review this guide at least twice a year and after every CMS annual release. For a dollars-and-cents estimate of your own situation, use our Medicare cost calculator guide.
There is no universal best plan, but two setups cover most people well: Original Medicare with Medigap Plan G and a Part D plan for predictable costs and provider freedom, or a highly rated Medicare Advantage HMO for a low premium with bundled extras. The choice turns on whether you value cost certainty or a lower monthly bill.
The standard Part B premium is $202.90 a month in 2026, up $17.90 from 2025. On top of that, expect roughly $34 a month for a stand-alone Part D plan, about $14 a month on average for a Medicare Advantage plan, or around $220 a month for Medigap Plan G at age 65.
Neither is better in the abstract. Medigap costs more monthly but removes networks, referrals and prior authorization and makes your bills predictable. Medicare Advantage costs less monthly and adds dental and vision, but you accept a network, prior authorization and an out-of-pocket limit that averaged $4,636 in-network for HMOs in 2026.
$2,100. Once your out-of-pocket spending on covered drugs reaches $2,100 in 2026, you pay nothing more for covered prescriptions that year. The cap was $2,000 in 2025.
No. Original Medicare alone has no annual limit on what you can spend on Part A and Part B cost sharing. That is the core reason to add either a Medigap policy or a Medicare Advantage plan — both supply a ceiling Original Medicare does not. Our guide to what Original Medicare does not cover lists the other gaps.
Sometimes, but not freely. You can leave Advantage for Original Medicare during Open Enrollment or the Medicare Advantage Open Enrollment Period, but buying a Medigap policy after your initial six-month Medigap open enrollment window usually means medical underwriting — insurers in most states can charge more or decline you. A handful of states offer broader guaranteed-issue rights.
Medicare Open Enrollment runs October 15 through December 7 for coverage starting January 1, and you can switch between Original Medicare and Advantage or change Part D plans. The Medicare Advantage Open Enrollment Period, January 1 through March 31, lets Advantage enrollees make one additional change.
Yes. Medicare Advantage replaces how your benefits are delivered, not the Part B premium itself. You pay $202.90 a month in 2026 plus any plan premium, unless a Medicare Savings Program or a plan's Part B giveback reduces it.
High-deductible Plan G provides the same coverage as standard Plan G after you pay $2,950 of Medicare-covered costs in 2026. Premiums typically run $30 to $75 a month. It suits healthy beneficiaries with savings who want Medigap's provider freedom without the full premium.
Enter your exact prescriptions, doses and pharmacy into the Medicare Plan Finder — formularies and tier placement matter far more than the premium. Average stand-alone Part D premiums fell from about $38 in 2025 to $34 in 2026, but a cheap plan that excludes your drug costs more overall. Our Wellcare Part D review shows how to read a formulary in practice.
Original Medicare does not cover routine dental, vision or hearing care. Most Medicare Advantage plans include some coverage, though annual allowances are often limited. Medigap policies do not add these benefits, so Original Medicare enrollees typically buy a separate dental or vision policy.
This content is for informational purposes only and does not constitute financial, insurance or medical advice. Premiums, deductibles, plan availability, networks and formularies change annually and vary by state and ZIP code — the figures here reflect 2026 national averages and CMS-published amounts as of September 2026. Always verify current plan details on Medicare.gov or with a licensed agent before enrolling. SeniorSimple is not connected with or endorsed by the U.S. government or the federal Medicare program.
About this guide: Written and maintained by the SeniorSimple editorial team, which has covered Medicare enrollment, Medigap pricing and Part D redesign since the Inflation Reduction Act changes began phasing in. We do not accept payment for placement in our comparisons.
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Plain-English guide to Medicare, Medigap, Advantage, and Part D — 2026 rates included.
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