Kansas Medigap Rules: Open Enrollment, Guaranteed Issue and Underwriting

The short answer

Kansas follows the federal Medigap rules and adds no yearly switching rule of its own. You get one six-month open enrollment period when Part B starts, a set of guaranteed issue rights tied to specific events like losing employer coverage, and strong protections if you are under 65 on disability. Outside those windows, companies can underwrite, meaning they can ask health questions and say no.

That sounds strict, but it is manageable. Most people who plan a little get the plan they want. The key is knowing your windows ahead of time, and we are happy to map them for you.

Your six-month open enrollment period

Your Medigap open enrollment period starts the first month you are 65 or older and enrolled in Part B, and it lasts six months. During this time, any company selling Supplements in Kansas must sell you any plan it offers, and it must charge you the same rate as a healthy person. This is a one-time window. It does not repeat each year.

If you keep working past 65 and delay Part B because you have employer coverage, your window waits for you. It begins the month your Part B takes effect. The Kansas Insurance Department explains this in its Medicare Supplement Shopper's Guide.

One detail: during open enrollment, a company can still make you wait up to six months for a condition you were treated for in the six months before your policy started, unless you had other coverage before. Most people with prior coverage have no wait at all. Ask us to confirm for your situation.

Guaranteed issue rights in Kansas

Guaranteed issue rights are specific events that let you buy certain Supplements without health questions, even after your open enrollment period has passed. In Kansas, these follow the federal list. The main ones are:

• Your employer, union, retiree or COBRA coverage that paid after Medicare ends.
• Your Medicare Advantage plan leaves Medicare, stops serving your county, or you move out of its area.
• You joined Medicare Advantage when you first became eligible at 65, and you leave it within the first year (your "trial right").
• You dropped a Supplement to try Medicare Advantage for the first time, and you want to go back within the first year.
• Your Supplement company goes bankrupt or ends your policy through no fault of yours.
• Your company or agent misled you or broke the rules.
• You lose Medicaid eligibility.

The window is usually 63 days after your coverage ends, and in some cases you can apply up to 60 days before. With a guaranteed issue right, companies must offer you Plans A, B, D, G, K and L if you became eligible for Medicare in 2020 or later, or Plans A, B, C, F, K and L if you were eligible before. Plan N is not on the guaranteed issue list, though some companies offer it anyway. Keep every letter a plan sends you, because the notice is your proof.

Under 65 and on Medicare because of a disability

Kansas is one of the better states for this. If you have Medicare before 65 because of a disability, Kansas requires companies to offer you every Supplement plan they sell, during a six-month open enrollment period that begins when your Part B starts. They cannot turn you down, and they must charge you the same premium as someone who becomes eligible at 65. A pre-existing condition wait may still apply.

When you turn 65, you get a second open enrollment period. That is a good time to shop again, because prices for people 65 and older are often lower than what you were offered before.

The rest of the time: medical underwriting

Outside those windows, a Kansas company can underwrite your application. That means health questions, a look at your prescriptions, and sometimes a phone interview. The company can accept you, charge a higher rate, or decline. Each company has its own list of conditions it will not accept, and the lists differ.

This is where a local agent earns their keep. We know which companies ask which questions and how they treat common conditions like diabetes, heart disease or recent joint replacement. Before you apply, we can tell you where you are likely to be approved, so a decline never shows up in your record.

Kansas has no birthday rule

Several states let people switch Supplements each year around their birthday or policy anniversary with no health questions. Kansas does not. The May 2026 chart from the NAIC, the national group of state insurance regulators, lists no birthday or anniversary rule for Kansas, and the Kansas Shopper's Guide does not mention one.

Missouri, right across the state line, does have an anniversary rule. We explain it, and what happens if you move, in Missouri vs Kansas rules. For Kansas residents, the practical takeaway is simple: pick your company carefully the first time, because changing later usually means underwriting.

When you can buy a Supplement in Kansas

Tips for Kansas residents

• Decide during open enrollment. If a Supplement is in your future, buy it in your window. You can always drop it later, but getting back in may be hard.
• Compare companies, not just plans. Plan G is Plan G everywhere. Price history and rate stability differ by company, and that matters more in a state with no yearly switch rule.
• Use the trial right wisely. If you try Medicare Advantage at 65, mark the one-year date. That is your last chance to return to a Supplement without underwriting.
• Call SHICK or us. SHICK, Kansas's free counseling program, is at 800-860-5260. We are at the number below.

Call us first

Before you apply, drop or switch a Supplement in Kansas, talk with a local agent. We will check your window and your odds, and it is free. Call (816) 307-6165 or book a free review.

Sources

• Kansas Insurance Department: Medicare Supplement Shopper's Guide (Rev. 2026)
• Kansas SHICK: Disability and Medicare (guaranteed issue situations)
• NAIC: State Medigap birthday rule and under-65 chart (May 2026)
• Medicare.gov: Compare Medigap plan benefits

Reviewed by a licensed Cole Insure agent. Last checked October 2026.