Best Medicare Supplement Plans USA 2026 — Medigap Plan G vs N vs F Ranked, Real Costs & Top Providers Compared
More than 14.5 million Americans have a Medicare Supplement (Medigap) plan — and in 2026, choosing between Plan G, Plan N, and Plan F has never had more financial consequence. Original Medicare covers approximately 80% of approved medical expenses, leaving the remaining 20% — plus hospital deductibles, skilled nursing facility coinsurance, and excess charges — as out-of-pocket exposure that can reach tens of thousands of dollars in a serious illness. A single hospitalization with the 2026 Part A deductible of $1,736 per benefit period can create multiple deductible events in a single year if multiple hospital stays occur. Plan G, which covers every Medicare gap except the $283 annual Part B deductible, costs an average of $180 per month in 2026 — but rates vary by over 50% between insurers for identical coverage. The difference between the cheapest Plan G and the most expensive Plan G in the same state can be over $1,200 per year, for literally identical benefits. This guide uses 16,954 Medigap quotes from Medicare.gov (MoneyGeek 2026 analysis) to rank the best Medicare Supplement plans and providers for 2026, break down Plan G vs N vs F with real numbers, and give every Medicare beneficiary the complete framework to stop overpaying for a standardized product.
Key Facts — Best Medicare Supplement Plans 2026 (Verified Data)
- Plan G is the best Medigap plan for most new enrollees — covers all Medicare gaps except the $283 Part B annual deductible. Average cost: $180/month for a 65-year-old. Rates rose 13% from 2025 to 2026 (+$21/month average).
- Plan N is the best budget option — $249/month average, covers most gaps but requires $20 copay for doctor visits and $50 for ER. Does NOT cover Part B excess charges — important if your doctors don't accept Medicare assignment.
- Plan F covers everything — $227/month average, but only available to those who became Medicare-eligible before January 1, 2020. Plan G is better value for new enrollees given the $47/month premium difference vs only $283/year extra coverage.
- AARP/UnitedHealthcare is the best overall provider — low rates, valuable extras through AARP membership, stable premiums, nationwide availability
- AFLAC has the cheapest Plan G, N, and F rates nationally — $203/month Plan G (vs $306 national average), saving up to $1,236/year on identical coverage
- Mutual of Omaha is best for Plan N and high-deductible Plan G — up to 12% household discount, strong customer service, fewer complaints than average
- High-Deductible Plan G costs only $52/month average but requires you to pay the first $2,950 in Medicare costs — best for very healthy seniors wanting catastrophic-only protection at minimum premium
- Open Enrollment Period: 6 months starting when you turn 65 AND are enrolled in Part B — guaranteed issue, no medical underwriting, cannot be denied or charged higher rates
- Pricing method matters: Community-rated plans charge everyone the same regardless of age — far better long-term than attained-age plans that increase every birthday
- Compare real rates for your ZIP code at Medicare.gov Medigap Plan Finder
$180Plan G avg/month — 65yo 2026
$283Part B deductible 2026
$1,736Part A deductible per benefit period
+13%Plan G cost increase 2025→2026
Plan G vs Plan N vs Plan F — The Complete 2026 Comparison
All Medicare Supplement plans are standardized by the federal government — Plan G from AFLAC covers exactly the same benefits as Plan G from UnitedHealthcare. The coverage is identical. Only the premium differs. This is why shopping between providers for the same plan letter is the single most financially impactful decision in Medigap — you are comparing prices for a commodity product.
| Coverage Gap | Plan G | Plan N | Plan F | No Supplement |
|---|---|---|---|---|
| Part A deductible ($1,736/benefit period) | ✅ Covered 100% | ✅ Covered 100% | ✅ Covered 100% | ❌ You pay $1,736 |
| Part A coinsurance (hospital days 61–90) | ✅ Covered | ✅ Covered | ✅ Covered | ❌ $371/day in 2026 |
| Part B coinsurance (20% of approved costs) | ✅ Covered 100% | ✅ Covered (with copays) | ✅ Covered 100% | ❌ 20% out-of-pocket |
| Part B deductible ($283/year) | ❌ NOT covered — you pay $283/yr | ❌ NOT covered | ✅ Covered (Plan F only) | ❌ You pay $283 |
| Part B excess charges | ✅ Covered | ❌ NOT covered | ✅ Covered | ❌ Up to 15% extra |
| Skilled nursing facility coinsurance | ✅ Covered | ✅ Covered | ✅ Covered | ❌ $209.50/day (days 21–100) |
| Foreign travel emergency (80%, after $250 deductible) | ✅ Covered ($50K lifetime) | ✅ Covered ($50K lifetime) | ✅ Covered ($50K lifetime) | ❌ Not covered |
| Doctor visit copay | $0 | $20 per visit | $0 | 20% of approved cost |
| Emergency room copay | $0 | $50 per visit | $0 | 20% of approved cost |
| Average Monthly Cost (65yo, 2026) | $180/month | $249/month avg (ValuePenguin) | $227/month (2026 avg) | $0 (premiums) — unlimited OOP |
| Who can buy it (2026) | All new Medicare enrollees ✅ | All new Medicare enrollees ✅ | Only pre-2020 eligibles ⚠️ | Anyone on Medicare |
💡 The Plan G vs Plan F math that every eligible senior must see: Plan F covers everything — including the $283 annual Part B deductible. Plan G covers everything except that $283 deductible. Plan F costs an average of $227/month and Plan G $180/month — a $47/month ($564/year) difference. Since the only extra coverage Plan F provides is the $283 deductible, you would pay $564/year more in premiums to save $283 in deductibles — a net loss of $281 per year. Plan G is financially superior to Plan F for almost every eligible enrollee. The only exception: very high healthcare utilizers who meet their Part B deductible and more — but even then, the math rarely favors Plan F.
Best Medicare Supplement Plan Providers 2026 — Ranked
AARP/UnitedHealthcare Best Overall 2026
4.8★Overall Medigap Score
NationwideAvailability
Low Ratesvs National Avg
AAM Best Rating
AARP ExtrasWellness + Fitness
AARP/UnitedHealthcare earns the overall 2026 best Medigap provider ranking from ValuePenguin through a combination of competitive rates, nationwide availability, stable premium history, and the added value of AARP membership benefits (wellness programs, SilverSneakers fitness access, hearing and vision discounts). As the largest Medicare Supplement insurer in the USA, UnitedHealthcare's scale provides financial stability and consistent claims processing. Their community-rated pricing in states where it's available is a long-term advantage — community-rated plans charge the same premium regardless of age, meaning your rate doesn't increase simply because you had a birthday.
📊 Nexuora insight: AARP/UnitedHealthcare's primary advantage over AFLAC (which has cheaper base rates) is long-term premium stability. AFLAC uses attained-age pricing in most states — rates increase every year as you age. AARP/UHC uses community rating where available, locking rates at the same level for all enrollees regardless of age. A 65-year-old who pays $15/month less with AFLAC may pay significantly more than AARP/UHC by age 75 under attained-age pricing. Always check which pricing method applies in your state before choosing based on current rates alone.
Strengths
- Best overall provider (ValuePenguin 2026) — low rates + stability
- Nationwide availability — all states where Medigap is sold
- Community rating in several states — age-stable premiums
- AARP membership extras: SilverSneakers, hearing discounts, wellness programs
- Largest Medigap insurer — scale + financial stability
Limitations
- Requires AARP membership ($16–$18/year)
- Not always the cheapest option in every state — compare locally
AFLAC Cheapest Plan G · $203/mo avg
4.5★Affordability Score
$203/moAvg Plan G (vs $306 avg)
$1,236Annual Savings vs Avg
A+AM Best Rating
Most StatesAvailability
AFLAC has the most affordable Medicare Supplement rates across Plan G, Plan F, and Plan N — averaging $203/month for Plan G against a national average of $306/month, generating up to $1,236 in annual savings on identical coverage. At A+ (Superior) AM Best rating, AFLAC's financial strength is well above the threshold for confident purchase. The critical consideration: AFLAC primarily uses attained-age pricing — meaning your premium will increase annually as you age. The $103/month initial savings advantage erodes over time as age-based increases apply. For seniors who plan to switch plans or who prefer maximizing current-year savings, AFLAC's price advantage is compelling. For seniors prioritizing long-term premium stability, the pricing method comparison matters more than current rates.
Strengths
- Cheapest Plan G nationally — $203/mo avg vs $306 national average
- Saves up to $1,236/year vs national average on identical coverage
- A+ AM Best — Superior financial strength rating
- Available across most states for Plans G, F, and N
Limitations
- Attained-age pricing — annual premium increases with age
- Long-term cost may exceed community-rated plans by age 75–80
- Mixed reviews on customer service compared to AARP/UHC
Mutual of Omaha Best Plan N — 12% Discount
4.7★Value + Service Score
12%Household Discount
LowNAIC Complaint Ratio
A+AM Best Rating
Most StatesAvailability
Mutual of Omaha is the best overall Medicare Supplement value for Plan N and high-deductible Plan G — combining competitive base rates with a 12% household discount (applicable when two people in the same household both enroll), strong customer service, and a NAIC complaint ratio well below the industry average. ValuePenguin specifically notes Mutual of Omaha for "cheap rates for basic coverage options like Plan N or high-deductible Plan G." For couples both on Medicare, the household discount alone can save $300–$600/year compared to single-policyholder pricing at competitors. Mutual of Omaha also scores particularly well on claims handling reliability — a critical metric for a product you may rely on heavily during serious illness.
Strengths
- 12% household discount — best available for couples on Medicare
- NAIC complaint ratio below industry average — fewer disputes
- Best rates for Plan N and HD Plan G
- Strong customer service — consistently well-reviewed
- Available in most states (not New York)
Limitations
- Not available in New York — use AARP/UHC for NY residents
- Plan N leaves Part B excess charge risk — check your doctors' Medicare assignment status
United American Insurance Best Geographic Coverage
4.5★MoneyGeek Score
48 StatesAvailability
9/10Plans Offered
AAM Best Rating
Plan LCheapest $200/mo
United American Insurance earns a spot in the top tier through the broadest state availability (48 states — more than most competitors), the widest plan selection (9 of 10 standard Medigap plans, only Plan M missing), and multiple pricing structures including community, issue-age, and attained-age rating — giving enrollees the flexibility to choose the pricing method that best suits their long-term needs. Their Plan L costs $200/month, saving $18 vs national average. For beneficiaries in rural or less common states where some carriers don't operate, United American's broad geographic reach ensures access to competitive pricing regardless of location.
Strengths
- Available in 48 states — broadest geographic reach
- 9 of 10 standard Medigap plans — maximum flexibility
- Multiple pricing methods — choose community, issue-age, or attained-age
- Plan L at $200/month — competitive for basic coverage
Limitations
- Not always the cheapest option in larger states
- Plan M not offered — reduces flexibility for that specific option
Physicians Mutual Most Predictable Pricing
4.6★Stability Score
38 StatesAvailability (expanding)
StablePremium History
AAM Best — Excellent
Expanding2026 State Growth
Physicians Mutual focuses specifically on predictable premiums and accessible customer service — making it the top choice for Medicare beneficiaries who prioritize long-term budget certainty over initial rate minimization. Their rate increase history is among the most stable in the market, and their understandable, jargon-free policy materials consistently earn high marks from enrollees navigating Medicare for the first time. Expanding into additional states in 2026, Physicians Mutual's geographic availability is growing to match its national reputation for straightforward, reliable coverage.
Strengths
- Most stable premium history — predictable long-term budgeting
- Plain-language policy materials — excellent for first-time enrollees
- Expanding to additional states in 2026
- Strong customer service ratings
Limitations
- Available in 38 states only — check local availability
- Not always cheapest current rates
Medicare Supplement Costs by Age and State — 2026 Data
| State | Plan G Avg (age 65) | Plan G Avg (age 75) | Plan N Avg | Pricing Notes |
|---|---|---|---|---|
| New York | $354/mo | $354/mo | ~$290/mo | Community-rated — flat regardless of age |
| Florida | $170–$220/mo | $210–$280/mo | $140–$180/mo | Attained-age; Plan G most popular (930K+ members) |
| California | ~$200/mo | ~$260/mo | ~$165/mo | Attained-age in most counties |
| South Carolina / New Mexico | $160/mo | ~$200/mo | ~$125/mo | Lowest rates nationally for 65-year-olds |
| Texas | ~$180/mo | ~$230/mo | ~$150/mo | Competitive market — shop locally |
| National Average (age 65) | $180/mo | $238/mo | $249/mo | +13% increase from 2025 for Plan G |
| Massachusetts | Flat rate (state-regulated) | Same as 65 | N/A (MA uses different plan names) | Community-rated by state law |
| Washington | $259/mo avg | $259/mo | $200/mo avg | Flat regardless of age (state-regulated) |
Source: MoneyGeek Medigap cost analysis 2026 (16,954 quotes from Medicare.gov). Rates are averages — actual premiums vary by insurer, ZIP code, age, and pricing method.
The 3 Pricing Methods — This Decision Affects Your Costs More Than Which Plan You Choose
Medicare Supplement insurers use one of three premium pricing methods. This is the most important and most overlooked factor in selecting a Medigap plan — because the pricing method determines how your premium changes over your entire enrollment period.
- Community-rated (best for long-term): Everyone in the same geographic area pays the same premium regardless of age. A 65-year-old and an 80-year-old pay identical rates. Premiums can still increase due to inflation and medical costs, but NOT due to your personal aging. New York, Massachusetts, and Connecticut require community rating by law. AARP/UnitedHealthcare uses community rating in several other states. Best for: almost everyone who expects to be enrolled for many years.
- Issue-age-rated (middle ground): Premium is based on your age when you first enroll and stays relatively stable — but is not locked forever. A 65-year-old starting enrollment pays less than someone who starts at 70, but both pay the same from enrollment forward regardless of further aging. Best for: seniors who enroll at a relatively young age for Medicare.
- Attained-age-rated (avoid for long-term): Premium increases as you get older — every birthday typically triggers a rate increase. AFLAC primarily uses attained-age pricing. The initial rate appears cheap but compounds with age. A plan that saves $103/month at age 65 may cost $200+/month more than community-rated competitors by age 80. Best for: seniors who expect to comparison-shop every 1–3 years and switch to cheaper options.
When to Enroll — The 6-Month Open Enrollment Window You Cannot Afford to Miss
The Medigap Open Enrollment Period is the single most important timing decision in Medicare Supplement insurance. It begins on the first day of the month you turn 65 AND are enrolled in Medicare Part B — and lasts exactly 6 months.
During this window: Insurers must sell you any Medigap plan at standard rates — no medical underwriting, no health questions, cannot be denied, cannot be charged higher rates for pre-existing conditions. This is called guaranteed issue status.
After this window closes: Insurers can (and do) use medical underwriting to deny coverage, charge higher rates for health conditions, or exclude pre-existing conditions from coverage. Many seniors who develop health issues before enrolling in Medigap find themselves permanently locked out of Plan G and forced into Medicare Advantage or no supplemental coverage.
⚠️ The most expensive Medicare mistake seniors make: Delaying Medigap enrollment. Many new Medicare beneficiaries try Medicare Advantage first — attracted by lower premiums and dental/vision extras. If they later develop a serious health condition and want to switch to Medigap, they discover that guaranteed issue rights no longer apply. In most states, insurers can deny the application entirely based on the health condition. The 6-month Open Enrollment window does not reopen once it closes. Enroll in Medigap during your 6-month window — you can always downgrade later, but upgrading from Medicare Advantage to Medigap with health conditions is very difficult.
Medigap vs Medicare Advantage — Which Is Better in 2026?
This is the most consequential financial decision most Medicare beneficiaries make. Here is the honest comparison:
| Factor | Medigap + Part D | Medicare Advantage |
|---|---|---|
| Monthly Premium | $180–$306/mo (Plan G) + Part D ~$30–$50/mo | $0–$50/mo (many plans) |
| Provider Choice | Any Medicare-accepting provider nationwide — no network, no referrals | Network-restricted — HMO requires referrals; PPO has out-of-network costs |
| Out-of-Pocket Maximum | Very low with Plan G — only $283/year (Part B deductible) | Up to $8,850/year (2026 standard OOP maximum) |
| Predictability | Highly predictable — fixed premium, minimal out-of-pocket | Harder to predict — copays, coinsurance, network changes annually |
| Extras (dental, vision, hearing) | Not included — purchase separately | Often included — many plans include dental, vision, gym membership |
| Prior Authorization | None — see any specialist without approval | Common — specialist visits and procedures often require prior auth |
| Best For | Seniors with significant healthcare needs or who travel; value provider freedom | Healthy seniors wanting lower monthly premiums and extra benefits |
Medigap Plan Selection Checklist — 2026
Medicare Supplement Selection Checklist — 2026
- Enroll during your 6-month Open Enrollment Period (starts when you turn 65 AND enroll in Part B) — guaranteed issue rights only exist during this window
- Start with Plan G unless you were Medicare-eligible before Jan. 1, 2020 — Plan G is the most complete option for new enrollees and better value than Plan F in most cases
- Use Medicare.gov's Medigap Plan Finder for your exact ZIP code — rates vary enormously by county, and national averages may not reflect what you'll actually pay
- Check the pricing method before choosing based on current rates — community-rated plans are almost always better long-term than attained-age plans even if initially more expensive
- Get quotes from minimum 3 providers — AFLAC, AARP/UHC, and Mutual of Omaha are the starting comparison set in most states
- Consider Plan N if you rarely visit specialists — saves ~$70/month vs Plan G with $20 doctor visit and $50 ER copays. Verify your doctors accept Medicare assignment (no excess charges)
- For couples: Mutual of Omaha's 12% household discount makes it the most competitive option when both spouses need Medigap
- Add a standalone Part D (prescription drug) plan — Medigap does NOT cover prescriptions. Average Part D premium: $30–$50/month
- Review annually during your plan birthday window (some states allow switching to equal/lesser plans annually without medical underwriting)
- If you're considering Medicare Advantage: understand you may not be able to return to Medigap with health conditions — the decision is often permanent
- For your complete senior healthcare coverage plan, see our Medicare Advantage guide to understand the full alternative before committing to Medigap
FAQ — Best Medicare Supplement Plans USA 2026
What is the best Medicare supplement plan in 2026?
Plan G is the best for most new enrollees — all Medicare gaps covered except the $283 Part B annual deductible, averaging $180/month at age 65. Plan N is the best budget option at $249/month with $20 doctor visit/$50 ER copays. Plan F (covers the $283 deductible too) is only for pre-2020 Medicare eligibles. Best provider: AARP/UnitedHealthcare overall; AFLAC for cheapest rates ($203/mo Plan G). Use Medicare.gov's Plan Finder for your exact ZIP code rates. Also see our Medicare Advantage guide for the full alternative comparison.
What is the difference between Plan G and Plan N?
Plan G: covers everything except the $283/year Part B deductible, no copays, covers Part B excess charges. $180/month average. Plan N: same as G but requires $20 for doctor visits + $50 for ER, does NOT cover excess charges. $249/month average (surprisingly more than G at some providers). Choose Plan N only if you rarely visit doctors AND all your providers accept Medicare assignment (no excess charges). For frequent healthcare users and those with specialist needs: Plan G provides better total value despite slightly higher premiums.
How much does Plan G cost in 2026?
National average: $180/month for a 65-year-old (up 13% from $159 in 2025). Cheapest nationally: AFLAC at $203/month average (vs $306 overall average — $1,236/year savings). By state: South Carolina/New Mexico $160/mo, Florida $170–$220/mo, New York $354/mo. Same Plan G in the same ZIP code varies 50% between insurers. Always compare at least 3 providers locally. Rates increase to ~$238/month at age 75 nationally under attained-age pricing.
When should I enroll in a Medicare supplement plan?
During your 6-month Open Enrollment Period — starts when you turn 65 AND enroll in Part B. This is the only time guaranteed issue applies: no medical underwriting, cannot be denied, standard rates regardless of health. After this window, insurers can deny you based on health conditions. Do not delay to try Medicare Advantage first — switching back to Medigap with health conditions is very difficult in most states and may be permanently impossible.
Which Medicare supplement pricing method is best?
Community-rated is best long-term — everyone pays the same regardless of age, premiums don't increase for aging. Required in NY, MA, CT and used by AARP/UHC in some states. Attained-age (used by AFLAC) looks cheapest initially but increases every year — can cost significantly more than community-rated by age 75–80. Issue-age is middle ground. Always ask which pricing method applies before selecting based on current rates alone. The pricing method decision matters more long-term than the initial premium difference.
Does Medicare Plan G cover prescriptions?
No — Medigap Plan G does NOT cover prescription drugs. You need a separate Medicare Part D drug plan, typically $30–$50/month. Part D is available from private insurers during Medicare Open Enrollment (October 15–December 7 annually). Medigap covers medical cost-sharing only — hospital, doctor visits, procedures, skilled nursing, and foreign travel emergencies. For your complete senior healthcare cost picture, see our senior life insurance guide for coordinating all protection layers.
Medigap vs Medicare Advantage — which should I choose?
Medigap: higher premiums ($180–$306/mo + Part D), near-zero out-of-pocket, any Medicare provider nationwide, no network restrictions. Best for seniors with significant healthcare needs or who travel. Medicare Advantage: low/no premiums, out-of-pocket max up to $8,850, network restrictions, often includes dental/vision. Best for healthy seniors wanting low premiums and extras. Critical warning: switching from Medicare Advantage back to Medigap after your initial enrollment window requires passing medical underwriting in most states — a decision that may be permanent if health conditions develop. See our Medicare Advantage guide for full comparison.
Can I switch Medicare supplement plans to get a lower rate?
Yes — but with conditions. Outside your Open Enrollment Period, switching typically requires medical underwriting (health questions/exam). Some states allow annual switching during a "birthday rule" window — switching to an equal or lesser Medigap plan within 30–60 days of your birthday without medical underwriting. California, Oregon, Idaho, and several others have birthday rules. If you're in an attained-age-rated plan and your rate has increased significantly, this window is worth using annually to comparison-shop. An independent Medicare broker can identify the cheapest plan at your current age/health profile each year.
Ahmada Ndao is a financial research analyst and independent journalist
specializing in US consumer finance, legal rights, and insurance markets.
With over 5 years covering American financial products, he has helped
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