This guide explains how Humana Medigap works in 2026, which lettered plans are typically available, how Plan G and Plan N differ, what premiums depend on, how enrollment and underwriting work, and how Medigap compares with Medicare Advantage. Benefits for a given letter plan are standardized by federal law. A Humana Plan G covers the same core benefits as a Plan G from another carrier. What changes from company to company is price, discounts, extras, customer service, and financial strength.
What Medicare Supplement Insurance Does
Original Medicare pays first. After Medicare pays its share, you are responsible for the remaining allowed amounts unless you have another policy. A Medicare Supplement plan is secondary coverage. It is not a replacement for Parts A and B, and it is not a Medicare Advantage (Part C) plan.
Typical costs a Medigap policy can help with include:
- Medicare Part A hospital coinsurance and, on most plans, the Part A deductible
- Part B coinsurance or copayments (usually 20% of the Medicare-approved amount)
- The first three pints of blood each year
- Part A hospice coinsurance or copayments
- Skilled nursing facility coinsurance (days 21–100) on many plans
- Part B excess charges on Plans F and G (the amount some providers charge above the Medicare-approved rate, up to the legal limit)
- Foreign travel emergency care, usually at 80% up to plan limits, on several plans
Medigap does not replace Part D prescription drug coverage. If you need drug coverage, you buy a standalone Part D plan. Medigap also does not usually include routine dental, vision, hearing, or fitness extras the way many Medicare Advantage plans do, though some Humana policies have offered wellness add-ons such as SilverSneakers in certain states.
You generally cannot have a Medigap policy and a Medicare Advantage plan at the same time. Medigap is designed to work with Original Medicare.
How Standardized Plans Work
In most states, Medigap policies are sold as lettered plans: A, B, C, D, F, G, K, L, M, and N. Two plans that share the same letter must offer the same standardized benefits. High-deductible versions of Plan F and Plan G exist in some states. Massachusetts, Minnesota, and Wisconsin use different standardized designs.
Two important eligibility rules still shape the market in 2026:
- Plans C and F (including high-deductible F) are closed to people who first became eligible for Medicare on or after January 1, 2020.
- For people new to Medicare, Plan G is the most comprehensive widely available option. It covers the same core items as Plan F except the annual Part B deductible, which you pay yourself.
Humana commonly markets Plans A, B, C or F (where still allowed), G, high-deductible G, N, and in some states K and L. Exact letters vary by state and ZIP code. Check current availability on Humana’s site or with a licensed agent.
Humana Plan G: The Default Choice for Many New Enrollees
Plan G is the plan most new beneficiaries compare first. After Medicare pays, Plan G typically covers:
- 100% of Part A coinsurance and extra hospital days after Medicare benefits are used
- 100% of Part B coinsurance or copayments
- First three pints of blood
- Part A hospice coinsurance or copayments
- Skilled nursing facility coinsurance
- 100% of the Part A deductible
- 100% of Part B excess charges
- 80% of foreign travel emergency costs, up to plan limits
What you still pay with Plan G:
- Your monthly Medigap premium
- Your monthly Part B premium (set by Medicare, not Humana)
- The annual Part B deductible (about $283 in 2026; confirm the official CMS figure for the year you enroll)
- Costs Medicare does not cover at all (most dental, hearing aids, routine vision, long-term custodial care)
Because Plan G covers excess charges, it is useful if you see providers who do not accept Medicare assignment. Most people still choose doctors who accept assignment, but excess-charge protection is part of why Plan G costs more than Plan N.
High-deductible Plan G is the budget version of the same benefit package. You pay Medicare-covered coinsurance, copays, and deductibles until you reach the high-deductible amount (about $2,950 in 2026 on Humana’s comparison materials), after which the plan pays. Monthly premiums are much lower. This option can make sense if you want Plan G–level protection against a catastrophic year and can absorb a large deductible in a normal year.
Humana Plan N: Lower Premium, Small Copays
Plan N covers most of the same hospital and skilled-nursing items as Plan G, including the Part A deductible and foreign travel emergency benefits. Differences that matter in daily use:
- You still pay the Part B deductible.
- Plan N does not cover Part B excess charges.
- After Medicare’s share, Plan N generally pays Part B coinsurance except for copays of up to $20 for some office visits and up to $50 for emergency room visits that do not result in inpatient admission.
People who rarely see specialists, almost always use providers who accept assignment, and want a lower monthly bill often prefer Plan N. People who want predictable, near-zero visit costs after the Part B deductible often prefer Plan G.
Other Humana Letter Plans
Plan A is the most basic standardized package: Part A coinsurance and extra hospital days, Part B coinsurance, blood, and hospice coinsurance. It does not cover the Part A deductible or skilled nursing coinsurance.
Plan B adds the Part A deductible to Plan A’s core benefits.
Plans K and L share costs until you hit an annual out-of-pocket limit, then pay 100% of covered services for the rest of the calendar year. Humana materials list 2026 out-of-pocket limits of $8,000 for Plan K and $4,000 for Plan L (always verify the year’s official figures). Premiums are lower; you pay more at the point of service until the cap.
Plan F, where still available to pre-2020 eligibles, remains the most complete standardized plan because it also pays the Part B deductible.
Availability of K, L, M, D, and high-deductible options is state-specific.
What Humana Medicare Supplement Costs
There is no single national price. Premiums depend on:
- ZIP code and state
- Age (and whether the state uses attained-age, issue-age, or community rating)
- Gender in some states
- Tobacco use
- Plan letter
- Household or spouse discounts
- Online enrollment discounts
- Payment method (some policies offer a small autopay credit)
Independent 2026 rate surveys that compiled Medicare.gov quotes for a typical 65-year-old found Humana premiums spanning a wide band by plan and market — roughly the low $100s per month on leaner plans in cheaper areas up to several hundred dollars on richer plans in expensive markets. In those snapshots, Humana Plan G often sat near or a bit above the national average for Plan G, Plan N near the average, and some thinner or less common letters farther from the mean. Treat those figures as orientation only. Your quote is the number that matters.
Humana has advertised a 6% monthly premium discount for online enrollment in many states (not available in California, Connecticut, Ohio, and Pennsylvania). Household discounts in the high-single-digits to low-teens have been reported in various states for eligible applicants. A small autopay discount also appears in some consumer guides.
Premiums are not frozen for life. Many Humana Medigap books use attained-age rating, so the rate rises as you get older, on top of company-wide rate filings. In 2026, Humana filed notable increases in multiple states for 2010/MIPPA and Achieve books, including double-digit Plan G increases in some markets. Compare both the starting premium and the carrier’s recent rate-increase history before you lock in.
Financial Strength and Service
AM Best has rated Humana’s relevant insurance entities in the A (Excellent) range with a stable outlook in recent affirmations. That rating speaks to claim-paying ability, not to how easy the phone tree is.
Third-party reviews of Humana Medigap are mixed. Strengths cited often include plan variety, digital enrollment, brand recognition, and extras on some policies. Weaknesses cited include premiums that run above average on several letters and complaint ratios that have run higher than the industry average in NAIC data used by consumer sites. BBB accreditation is typically strong even when consumer star ratings on review platforms are lower, because those stars mix Medigap with Medicare Advantage and other lines. Read Medigap-specific complaints if service quality is a deciding factor.
Enrollment Windows and Underwriting
The most important window is the Medigap Open Enrollment Period: six months starting the first month you are 65 or older and enrolled in Medicare Part B. During that window, you have a guaranteed-issue right. Insurers cannot deny you, charge more because of health conditions, or impose waiting periods for pre-existing conditions in the usual way.
Outside that window, Humana and other carriers can use medical underwriting unless you have another guaranteed-issue right (for example, certain loss-of-coverage situations). If you wait until after a diagnosis, you may pay more or be declined.
You can apply for Medigap any time of year. Unlike Medicare Advantage, there is no annual fall “AEP-only” rule for first-time Medigap purchase, but guaranteed issue is time-limited.
Medigap vs. Medicare Advantage
This choice is structural, not a brand comparison.
| Feature | Humana Medigap + Original Medicare | Typical Medicare Advantage |
|---|---|---|
| Doctors | Any provider who accepts Medicare, nationwide | Network rules (HMO/PPO); out-of-network costs vary |
| Referrals | Not required by the Medigap policy | Often required in HMOs |
| Extra benefits | Usually none or limited wellness add-ons | Often dental, vision, hearing, fitness, OTC |
| Drugs | Separate Part D plan | Often included |
| Monthly premium | Medigap premium + Part B (+ Part D) | Often $0 plan premium + Part B; some givebacks |
| Point-of-service costs | Low after premium on G/F; copays on N | Copays and an annual out-of-pocket max |
| Travel | Strong U.S. access; some foreign emergency | Network and prior-auth rules follow you |
Choose Medigap if you value freedom of provider, predictable medical bills after the premium, and you will buy Part D separately. Choose Advantage if you want extras bundled, can stay in-network, and prefer a lower premium with copays.
How to Shop Humana Intelligently
- Confirm you have (or will have) Part A and Part B.
- Decide whether Plan G, high-deductible G, or Plan N matches how you use care.
- Get a Humana quote for your ZIP, age, and tobacco status, then get at least two competing quotes for the same letter plan.
- Ask whether the rate is attained-age and what increases were filed in your state in the last three years.
- Ask about household, online, and autopay discounts.
- If you are in your six-month Open Enrollment Period, use it. Do not delay for a slightly lower advertised premium if underwriting risk is high.
- Budget for Part D separately.
- Read the outline of coverage for your state, not a national blog table, before you sign.
Who Humana Medigap Fits Best
Humana Medicare Supplement can be a reasonable fit if you want a nationally known carrier, a wide menu of letter plans in most states, online enrollment with a discount where offered, and standardized benefits you can take to any Medicare doctor. It is less compelling if your priority is the lowest possible Plan G premium in your ZIP, or if complaint data and service reviews weigh heavily for you. In that case, run the same letter plan against other A-rated carriers and pick on price plus rate stability.
Medicare rules, deductibles, and plan filings change every year. Verify 2026 Part A and Part B amounts, high-deductible figures, and your state’s approved Humana rates before you enroll. This article is educational and is not an insurance offer, a quote, or personalized advice.
