The question comes up in every Medicare broker’s week: Should my client choose Medicare Advantage or Medicare Supplement?
It is also one of the most consequential decisions a Medicare beneficiary will make — one that affects which doctors they can see, what they pay out of pocket, whether they need a referral, and how much their monthly premium will be for years to come.
As AEP 2026 opens on October 15, that question will be asked millions of times. With major carriers exiting markets, networks shrinking, and the 2027 plan landscape shifting, the stakes for getting this answer right have never been higher. This guide gives brokers the full comparison — verified 2026 and 2027 numbers, real-world scenarios, decision frameworks, and broker takeaways — to serve every client with confidence.
Medicare Advantage (Part C) replaces Original Medicare with a private plan — lower premium, network restrictions, extra benefits, prior authorization requirements, and an annual out-of-pocket maximum. Medicare Supplement (Medigap) works alongside Original Medicare — higher monthly premium, no network restrictions, minimal paperwork, and predictable costs. Neither is universally better. The right choice depends on health, budget, provider relationships, and lifestyle.
What Is Medicare Advantage (Part C)?
Medicare Advantage, also called Medicare Part C, is an alternative to Original Medicare offered by private insurance companies approved by CMS. These plans must cover everything Original Medicare covers — but they deliver that coverage through their own networks, rules, and cost structures.
How Does Medicare Advantage Work?
When a beneficiary enrolls in Medicare Advantage, they are still on Medicare — but the plan, not the federal government, manages their day-to-day healthcare. Members use the plan’s contracted network of doctors and hospitals. Most plans require prior authorization for certain procedures, referrals for specialists (in HMO structures), and copayments at the point of service.
In exchange for accepting those restrictions, Medicare Advantage members typically enjoy:
- Low or $0 monthly plan premiums (beyond the required Part B premium)
- An annual out-of-pocket maximum — capped at $9,250 in-network for 2026, per CMS rules
- Extra benefits not covered by Original Medicare: dental, vision, hearing, fitness, over-the-counter allowances, and more
- Prescription drug coverage bundled into most MAPD plans
What Types of Medicare Advantage Plans Exist?
According to Medicare.gov, the main Medicare Advantage plan types are:
- HMO (Health Maintenance Organization): Requires in-network care for non-emergency services. Specialist referrals typically required. Lowest premiums of MA plan types.
- PPO (Preferred Provider Organization): Can see out-of-network providers at higher cost share. No referrals required. More flexible, but note that many carriers have been exiting PPO markets in 2026–2027 due to cost pressures.
- PFFS (Private Fee-for-Service): Sets its own payment rates. Providers must accept the plan’s terms.
- SNP (Special Needs Plan): Targeted to individuals with specific chronic conditions, dual Medicare-Medicaid eligibility, or institutional care needs.
- MSA (Medical Savings Account): Combines a high-deductible plan with a tax-advantaged savings account funded by Medicare.
Medicare Advantage — Broker Takeaways
- Always verify the client’s current doctors are in-network before enrollment — not after
- Review the plan’s out-of-pocket maximum carefully — the CMS cap is $9,250 in-network, but individual plans may set lower limits
- Check the formulary for the client’s specific medications — drug tiers vary significantly by plan
- PPO exits have accelerated in 2026 — confirm the plan type is still available in the client’s county for 2027
- Extra benefits like dental and vision have real value but verify the scope — some plans offer limited dollar amounts rather than comprehensive coverage
What Is Medicare Supplement Insurance (Medigap)?
Medicare Supplement insurance — universally called Medigap — is private insurance that works alongside Original Medicare. It does not replace Medicare. Instead, it fills in the cost-sharing gaps that Original Medicare leaves behind: deductibles, coinsurance, and copayments.
How Does Medigap Work?
A beneficiary on Medigap keeps Original Medicare (Parts A and B) as their primary insurance. When they receive care from any provider that accepts Medicare — anywhere in the country — Medicare pays its share first, then the Medigap policy pays some or all of the remaining cost. There is no network to worry about, no referrals required, and generally no prior authorization beyond what Original Medicare itself requires.
The trade-off is a higher monthly premium. Medigap policies are standardized by CMS — every Plan G from every carrier covers exactly the same benefits. Per Medicare.gov, the only difference between same-letter Medigap plans sold by different companies is the price.
Medigap Does Not Include Drug Coverage
This is a critical point brokers must communicate clearly: Medigap policies do not include prescription drug coverage. A beneficiary on Medigap must also enroll in a standalone Medicare Part D Prescription Drug Plan (PDP) to have drug coverage. Failing to enroll in Part D when first eligible may result in a late enrollment penalty.
The best time to enroll in Medigap is during the 6-month Medigap Open Enrollment Period — starting the month a beneficiary is both 65 and enrolled in Part B. During this window, they cannot be denied coverage or charged more for pre-existing conditions. After this window closes, insurers in most states can use medical underwriting to deny coverage or charge higher premiums. Brokers should make this timing clear to every client approaching 65.
Medicare Advantage vs. Medicare Supplement: Side-by-Side Comparison (2026–2027)
| Feature | Medicare Advantage (Part C) | Medicare Supplement (Medigap) |
|---|---|---|
| How it works | Replaces Original Medicare — private plan manages all coverage | Supplements Original Medicare — pays cost gaps alongside Medicare |
| Monthly premium | Often $0–$50/mo above Part B; avg. $14/mo in 2026 | $93–$300+/mo above Part B; Plan G avg. $100–$200, Plan N avg. $93–$160 |
| Provider network | Restricted to plan network (HMO or PPO); service-area limited | Any provider nationwide that accepts Medicare — no network |
| Referrals required | Yes for HMO; not typically required for PPO | No — see any specialist directly |
| Prior authorization | Yes — required for many procedures, durable medical equipment, and some drugs | Minimal — follows Original Medicare rules only |
| Out-of-pocket max | Yes — up to $9,250 in-network in 2026 (CMS limit); individual plans may be lower | Minimal — Plan G: only pay $283 Part B deductible annually; Plan N: deductible + small copays |
| Drug coverage | Included in most MAPD plans (Part C + Part D bundled) | Not included — must add standalone Part D plan separately |
| Extra benefits | Dental, vision, hearing, OTC allowance, fitness — varies by plan | None — ancillary plans available as standalone add-ons |
| Travel coverage | Emergency care generally covered; non-emergency care depends on plan’s service area | Follows anywhere in the U.S.; some plans cover foreign travel emergency |
| Guaranteed acceptance | Cannot be denied or charged more based on health status during enrollment periods | Guaranteed issue during Open Enrollment (age 65 + Part B); underwriting applies outside that window in most states |
| Best for | Budget-conscious, network-flexible members who want extra benefits and accept managed-care rules | Members who want provider freedom, predictable costs, no prior auth, and are willing to pay a higher premium |
Sources: Medicare.gov Medigap Benefits, CMS 2027 Rate Announcement, NerdWallet Medicare Research 2026.
The Real Cost Comparison: What Clients Actually Pay
The premium difference between Medicare Advantage and Medigap is the most visible number — but it is rarely the most important one. What matters is total annual cost, which depends heavily on how much healthcare a beneficiary uses.
Medicare Advantage Cost Structure
A Medicare Advantage member on a $0-premium plan pays nothing extra in premiums each month beyond their Part B premium. But when they use care, costs accumulate:
- Primary care visit copay: typically $0–$30
- Specialist visit copay: typically $30–$65
- Inpatient hospital: typically $200–$450/day for first several days
- Skilled nursing facility: $0 for days 1–20, then $25–$100/day for days 21–100
- Maximum out-of-pocket: up to $9,250 in-network (2026 CMS limit)
Medigap Plan G Cost Structure
A Plan G member pays more every month in premium — typically $100–$200/month depending on age, state, and carrier, per Kiplinger. But once they meet the annual Part B deductible of $283 in 2026 (per Medicare.gov), Plan G covers essentially everything else: Part A deductible ($1,736 in 2026), all coinsurance, all hospital costs. Total out-of-pocket for medical care in a heavy-utilization year is remarkably predictable.
Medigap Plan N Cost Structure
Plan N carries a lower monthly premium than Plan G — typically $93–$160/month. The trade-offs are small copays (up to $20 for some office visits, up to $50 for ER visits that do not result in inpatient admission) and no coverage for Part B excess charges. Per Medicare.gov, Plan N still pays 100% of Part B coinsurance beyond those copays.
— Licensed Medicare Industry Analysis, 2026
| Scenario | Medicare Advantage ($0 Premium HMO) | Medigap Plan G ($150/mo) | Medigap Plan N ($110/mo) |
|---|---|---|---|
| Healthy year — few visits | ~$200–$400 (copays only) | ~$2,083 (premiums only + $283 deductible) | ~$1,603 (premiums + deductible + small copays) |
| Moderate use — specialist + 2 hospitalizations | ~$3,000–$5,000 in copays before MOOP | ~$2,083 (premiums + $283 deductible only) | ~$1,700–$1,900 (premiums + deductible + copays) |
| High use — surgery, extended hospital stay | Up to $9,250 MOOP (in-network) | ~$2,083 (premiums + $283 deductible only) | ~$1,800–$2,000 (premiums + deductible + copays) |
Illustrative estimates based on 2026 verified benchmarks. Actual costs vary by plan, region, and individual utilization. Premiums vary by age, state, and carrier.
What Changed for 2027: Key Updates Brokers Must Know
The 2027 plan year brings meaningful changes to the Medicare Advantage landscape that directly affect the MA vs. Medigap conversation.
CMS 2027 Rate Announcement: 2.48% Average Increase
CMS finalized a 2.48% average increase in benchmark payments to Medicare Advantage plans for 2027 — translating to over $13 billion in additional plan payments, according to the official CMS Rate Announcement. While this is a significant improvement from the initial 0.09% proposal, it still lags medical inflation — meaning many carriers will continue trimming benefits, raising cost sharing, or exiting markets rather than absorbing losses.
Proposed SEP for Provider Terminations — Not Finalized
CMS had proposed a new Special Enrollment Period that would allow Medicare Advantage members to switch plans when their provider leaves the plan’s network — without requiring a CMS determination that the change was “significant.” That proposal was not finalized in the 2027 final rule, according to Medicare Advocacy. This means MA members who lose a doctor mid-year remain locked into their plan until AEP in most circumstances — reinforcing the value of Medigap’s network-freedom for clients who prize provider continuity.
Continued Network Instability Heading Into AEP 2026
With Humana exiting MA plans covering 600,000 members, UnitedHealthcare reviewing additional county exits, and over 25 major health systems having dropped MA contracts in 2026, the network instability argument for Medigap has never been stronger. A Medigap member with Original Medicare is immune to these disruptions — they can see any provider that accepts Medicare, regardless of which insurer that provider has or has not contracted with.
2027 MA Star Ratings Changes
The 2027 final rule also updates the MA Star Ratings quality measurement system, per the CMS Final Rule fact sheet. Plans with lower Star Ratings face reduced bonus payments — which can cascade into benefit reductions or premium increases for members. Brokers should check Star Ratings when recommending specific MA plans for 2027.
2027 Update — Broker Takeaways
- The 2.48% CMS benchmark increase is positive — but still lags medical inflation. Expect continued benefit reductions at some carriers for 2027.
- The mid-year SEP for provider terminations was NOT finalized — MA members who lose a doctor are still largely locked in until AEP.
- Network exits from major health systems in 2026 have made provider-freedom conversations with Medigap candidates more compelling than ever.
- Check Star Ratings on every MA plan you recommend for 2027 — low-rated plans face bonus payment cuts that ripple into benefit changes.
- AEP opens October 15 — make sure AHIP certification is complete before then. Use the ACA discount link: ahipmedicaretraining.com/clients/oim
Medigap Plan G vs. Plan N: Which Should Brokers Recommend?
For clients leaning toward Medigap, the most common choice in 2026 is between Plan G and Plan N. Plan F — previously the most popular — is no longer available to Medicare beneficiaries who turned 65 after January 1, 2020.
| Feature | Plan G | Plan N |
|---|---|---|
| Part A deductible ($1,736 in 2026) | ✅ Covered | ✅ Covered |
| Part B deductible ($283 in 2026) | ❌ Member pays | ❌ Member pays |
| Part B coinsurance | ✅ Covered in full | ✅ Covered (with office/ER copays) |
| Office visit copay | $0 | Up to $20 |
| ER copay (if not admitted) | $0 | Up to $50 |
| Part B excess charges | ✅ Covered | ❌ Not covered |
| Skilled nursing coinsurance | ✅ Covered | ✅ Covered |
| Typical monthly premium | $100–$200+ (varies by age, state, carrier) | $93–$160 (varies by age, state, carrier) |
| Best for | Clients who want maximum predictability and zero point-of-service surprises | Clients who want lower premium and can absorb small copays; see non-excess-charge providers |
Sources: Medicare.gov Choosing a Medigap Policy (2026), Kiplinger Best Medigap Plan Guide.
How to Help Clients Decide: The Broker’s Decision Framework
Neither Medicare Advantage nor Medigap is universally better. The right answer depends on a combination of factors that a skilled broker surfaces through a structured conversation.
Lean Toward Medicare Advantage When:
- The client is generally healthy with minimal regular care needs
- Budget is tight and a higher monthly premium is a genuine hardship
- Strong, stable plans are available in the client’s county — verify network stability for 2027
- The client values dental, vision, hearing, and fitness benefits that are not available under Original Medicare
- The client is flexible about providers and willing to work within a managed-care structure
- The client’s preferred doctors and hospital are in-network with the specific plan being considered
Lean Toward Medicare Supplement When:
- The client has complex chronic conditions or sees multiple specialists regularly
- The client has a strong relationship with a specific hospital or physician — especially one that has dropped MA contracts in 2026
- The client is in good enough health to qualify during Open Enrollment (at 65 with Part B)
- The client travels frequently or spends part of the year in another state
- The client has experienced prior authorization denials and values a simpler claims process
- Cost predictability matters more than a lower monthly premium
Questions to Ask Every Prospective Medicare Client
- Who are your current doctors, and which plans are they in-network with?
- Do you have any ongoing conditions that require regular specialist visits or procedures?
- How important is cost predictability vs. a lower monthly premium?
- Do you travel or spend time in multiple states?
- Have you had experiences with prior authorization denials under a current plan?
- Are dental, vision, and hearing benefits important to you?
- Do you take regular prescription medications? (Review formularies for any MA plan)
Decision Framework — Broker Takeaways
- Run the total annual cost comparison for each client’s expected utilization — premium savings from MA can evaporate quickly for clients with regular medical needs
- The 2027 MA landscape is less stable than prior years — county exits and network changes are real factors in the recommendation
- For clients choosing Medigap, act during their Open Enrollment window — guaranteed issue rights expire and health underwriting can make future enrollment difficult or impossible
- Always pair Medigap with a Part D plan — leaving drug coverage uncovered risks a lifetime late enrollment penalty
- Document your rationale for the recommendation — it protects both the client and the broker
How Affordable Care Agents Helps Brokers Master Both Products
Brokers who can fluently explain Medicare Advantage, Medicare Supplement, and Part D — and help clients make an informed, personalized choice — retain clients for life. That expertise takes training, multi-carrier access, and an FMO that genuinely invests in broker education.
Affordable Care Agents is a national FMO and IMO that provides licensed Medicare brokers with:
- Multi-carrier contracting — MA plans, Medigap carriers, and Part D plans across markets nationwide
- AHIP certification access at a discount through the OIM portal at ahipmedicaretraining.com/clients/oim
- Carrier-specific certifications and training so brokers are AEP-ready across all products they represent
- Back-office support for enrollment, compliance, and CRM management
- Lead programs and marketing resources to grow the client base heading into AEP
- Compliance education so brokers navigate 2027 CMS rule changes — including the 48-hour SOA removal effective October 1, 2026 — without risk
Frequently Asked Questions: Medicare Advantage vs. Medicare Supplement
Disclaimer: This article is provided for educational and informational purposes only and should not be considered legal, tax, financial, medical, insurance, or compliance advice. Insurance laws, Medicare and Medicaid regulations, Affordable Care Act Marketplace rules, carrier policies, commissions, plan availability, eligibility requirements, and state regulations may change and may vary by jurisdiction. Readers should verify current information through official sources such as CMS, Medicare.gov, Healthcare.gov, IRS.gov, state Departments of Insurance, and applicable insurance carriers before making insurance or business decisions. Affordable Care Agents is a national FMO, IMO, and insurance brokerage. Publication does not constitute an offer of insurance or a guarantee of coverage, contracting, compensation, eligibility, or regulatory compliance.
