When Missouri residents turning 65 sit down with me to compare Medicare Supplement plans, the conversation almost always comes down to two options: Plan G and Plan N. These are the two most popular Medigap plans in the Kansas City area — and for good reason. But the way most agents present the choice leaves out some important nuances that can cost you money.

Here’s what I tell every client who asks me to compare them honestly.

What Is the Difference Between Medicare Supplement Plan G and Plan N?

Plan G and Plan N both cover the Medicare Part A deductible ($1,736 in 2026), Part A coinsurance, Part B coinsurance, skilled nursing facility coinsurance, and foreign travel emergency care. Both leave you responsible for the Part B deductible ($283 in 2026). The meaningful differences come down to three things: Part B excess charges, emergency room copays, and office visit copays.

Plan G covers Part B excess charges — the additional amount a provider can charge above Medicare’s approved amount. Plan N does not. Plan N has a $20 copay for office visits and a $50 copay for emergency room visits that don’t result in inpatient admission. Plan G has no copays.

How Much Does Plan G Cost Compared to Plan N in Missouri?

In the Kansas City metro area in 2026, a 65-year-old enrolling in Plan G during their open enrollment period can expect to pay approximately $120–$180 per month depending on the carrier. Plan N typically runs $20–$40 less per month — so roughly $90–$150 per month for the same age and area.

That $20–$40 monthly difference is the core of the Plan G vs Plan N decision. Over a full year, Plan N saves you $240–$480 in premiums. The question is whether you’ll spend more than that in copays and excess charges.

Who Should Choose Plan G in Missouri?

Plan G makes the most sense for Missouri residents who see their doctors frequently, use specialists regularly, or want the simplicity of knowing their costs are fully predictable after the $283 Part B deductible.

In my practice serving Blue Springs, Lee’s Summit, and the broader Kansas City metro, I recommend Plan G most often to clients who are managing chronic conditions, have established relationships with specialists they want to keep seeing, or simply prefer the peace of mind of no unexpected bills.

The math is simple: if you have more than 12–15 office visits per year, Plan N’s copays can eat up or exceed the premium savings. Add in any emergency room visits and the calculus shifts further toward Plan G.

Who Should Choose Plan N in Missouri?

Plan N is an excellent choice for healthy, active Missouri seniors who rarely visit the doctor beyond annual wellness visits and occasional sick visits. If you’re turning 65 in good health, have no chronic conditions requiring frequent specialist visits, and want to keep your monthly premium lower, Plan N can save you real money.

The key is being honest with yourself about your healthcare usage patterns. I’ve seen clients choose Plan N based on optimism about their future health rather than their actual history — and end up paying more in copays than they saved in premiums within the first year.

Plan N also works well for Missouri residents whose preferred providers all participate in Medicare assignment — meaning they accept Medicare’s approved amount as payment in full and never bill excess charges. In that case, the Plan G excess charge protection has no practical value for you.

What Are Medicare Part B Excess Charges?

Part B excess charges are the additional amount — up to 15% above Medicare’s approved amount — that non-participating providers can charge Medicare patients. Not all providers charge excess charges, and in Missouri the majority of physicians accept Medicare assignment.

However, specialists in high-demand fields — certain oncologists, surgeons, and subspecialists — sometimes do not accept assignment. If you’re seeing a non-participating provider for a $500 procedure, they can bill up to $575. That $75 excess charge is your responsibility under Plan N. Under Plan G, it’s covered.

For most Missouri residents in urban areas like Kansas City and Independence, excess charges are rare enough that they don’t drive the Plan G vs Plan N decision. For residents in rural areas where specialist access is limited and out-of-area providers are more common, excess charge protection has more value.

Can You Switch From Plan N to Plan G Later?

This is the question most agents don’t address directly — and the answer matters enormously for your long-term planning.

In Missouri, switching from Plan N to Plan G after your initial open enrollment period requires medical underwriting. That means the insurance company can review your health history and deny you coverage or charge you a higher premium based on pre-existing conditions. The guaranteed issue rights you had when you first enrolled in Medicare are gone.

This is the most important reason to think carefully about your initial plan choice. If you choose Plan N at 65 because you’re healthy, and then develop a chronic condition at 68, you may find yourself stuck on Plan N — unable to switch to Plan G without being declined or charged significantly more.

I’ve worked with Missouri clients who deeply regretted their initial Plan N choice when their health changed. It’s not a reason to automatically choose Plan G, but it’s a risk that deserves honest consideration.

How Do Missouri Medigap Premiums Change With Age?

Both Plan G and Plan N premiums increase with age — but how they increase depends on the pricing structure the carrier uses. Missouri carriers use three pricing models: community-rated (same premium regardless of age), issue-age-rated (premium based on age at enrollment, increases with inflation only), and attained-age-rated (premium increases as you get older).

Most carriers in the Kansas City area use attained-age rating, which means your premium increases each year as you age. This is important context for the Plan G vs Plan N premium comparison. A $30/month savings on Plan N at 65 may look different at 75 when both plans have increased — but so has your healthcare utilization.

When I compare plans for Missouri clients, I look at not just the current premium but the carrier’s rate increase history. A carrier with a lower starting premium but aggressive annual increases may cost more over a 10-year period than a carrier with a slightly higher starting premium and more stable increases.

What About High-Deductible Plan G in Missouri?

There’s a third option worth mentioning: High-Deductible Plan G (HDG). HDG offers the same coverage as standard Plan G — including excess charge protection — but requires you to pay a deductible of $2,870 in 2026 before the supplement coverage kicks in. In exchange, the monthly premium is dramatically lower — typically $30–$60 per month for a 65-year-old in Missouri.

HDG works well for healthy seniors who want catastrophic protection at a low monthly cost and are comfortable paying out of pocket for routine care. It’s essentially a high-deductible approach to Medicare supplementation.

For Missouri clients who ask about HDG, I run a break-even analysis: at what point does the premium savings outweigh the higher deductible exposure? For most healthy 65-year-olds, HDG is worth serious consideration — though it requires the same honest self-assessment about healthcare usage that Plan N does.

How Do I Choose Between Plan G and Plan N in Missouri?

My honest framework for Missouri clients comes down to four questions:

How often do you currently visit doctors and specialists? If you have more than 12–15 visits per year, Plan G’s lack of copays likely justifies the higher premium.

Do your preferred providers accept Medicare assignment? If yes, excess charge protection has limited value and Plan N’s savings are more meaningful.

How risk-tolerant are you about future health changes? If the prospect of being locked into Plan N due to underwriting concerns you, Plan G’s certainty has real value.

What is the actual premium difference for your age and ZIP code right now? The spread between Plan G and Plan N varies by carrier and changes over time. I pull current quotes for every Missouri client before making a recommendation — the numbers matter more than general rules of thumb.

What Happens to Your Plan G or Plan N Coverage When You Travel?

Both Plan G and Plan N include foreign travel emergency coverage — a benefit that surprises many Missouri retirees who assumed Medicare didn’t cover international travel. Both plans cover 80% of foreign travel emergency costs after a $250 deductible, up to a lifetime maximum of $50,000. This coverage kicks in during the first 60 days of a trip.

For Missouri seniors who travel frequently — whether to visit family, take cruises, or spend winters in warmer climates — this benefit has real value. Original Medicare provides essentially no coverage outside the United States, so the foreign travel emergency benefit in both Plan G and Plan N fills a meaningful gap.

The 80% coverage after deductible means you’re still responsible for 20% of foreign emergency costs up to the $50,000 lifetime maximum. Frequent international travelers may want to supplement this with a dedicated travel insurance policy for comprehensive protection — but for the occasional international trip, the built-in Medigap foreign travel benefit is a valuable and underappreciated feature of both Plan G and Plan N.

One practical note for Kansas City metro residents who live near the Missouri-Kansas border: crossing state lines has no impact on your Medigap coverage. Both Plan G and Plan N work with any Medicare-accepting provider anywhere in the United States, with no network restrictions. This is one of the most significant advantages of Medigap over Medicare Advantage for Missouri residents who regularly use providers on both sides of the state line.

Frequently Asked Questions

Is Plan G better than Plan N in Missouri?

Neither plan is universally better — it depends on your health, your providers, and your risk tolerance. Plan G offers more comprehensive coverage with no copays and excess charge protection. Plan N costs less per month but has office visit and ER copays and no excess charge coverage. For most Missouri residents with established healthcare needs, Plan G’s predictability is worth the premium difference.

Can I be denied Medigap coverage in Missouri?

Yes — outside of your initial open enrollment period, Missouri carriers can use medical underwriting to deny Medigap coverage or charge higher premiums based on health history. Your guaranteed issue rights exist only during your 6-month Medigap open enrollment window after Part B begins. This is why your initial plan choice matters so much.

How much does Plan G cost per month in Kansas City?

In 2026, Plan G premiums for a 65-year-old in the Kansas City metro area typically range from $120–$180 per month depending on the carrier. Premiums vary significantly between carriers for identical coverage — comparing multiple carriers is essential. I provide free plan comparisons for Kansas City area residents.

Does Plan N cover the Part B deductible in Missouri?

No — Plan N does not cover the Part B deductible ($283 in 2026). Neither does Plan G. Both plans require you to pay the Part B deductible once per year before either supplement coverage applies to outpatient services.

Plan G is currently the most popular Medicare Supplement plan in Missouri, having replaced Plan F as the top choice after Plan F became unavailable to new Medicare enrollees in 2020. Plan N is the second most popular option, particularly among healthier seniors looking to reduce monthly premiums.