Advantage vs Medigap for Lee's Summit Retirees

Lee’s Summit has one of the larger retiree populations in the Kansas City metro. The Census Bureau’s QuickFacts page puts people 65 and older at about 16.2 percent of the city. That means a lot of neighbors are weighing the same question: Medicare Advantage or a Medicare Supplement? Here is how we talk it through with Lee’s Summit people, without pushing you either way.

The two roads, in plain words

Original Medicare plus a Medicare Supplement (Medigap) and a Part D drug plan. Medicare pays first. The Supplement pays most or all of what Medicare leaves to you. You see any doctor or hospital in the country that accepts Medicare. You buy a separate drug plan.

Medicare Advantage. A private plan takes the place of Original Medicare. It usually includes drug coverage and extras like dental or hearing. It has a network of doctors and hospitals, and the plan often has to approve care in advance.

Both are real Medicare. Both are regulated. They just put the trade-offs in different places.

What Lee’s Summit retirees should weigh

Your hospital and doctors

Lee’s Summit Medical Center is part of HCA Midwest Health. Many people here also use Saint Luke’s East in Lee’s Summit, or drive to hospitals in Independence, Blue Springs or the Plaza. With a Supplement, none of that matters; any Medicare provider works. With Medicare Advantage, it matters a great deal.

Kansas City hospital systems have ended contracts with Medicare Advantage carriers more than once in the last two years. A network you checked at 65 is not a network you have checked. If you lean toward Advantage, confirm your hospital and your specific doctors for the coming year, every year. We explain how on your doctors and hospitals. Networks change every year, and we check them for you.

Prior approval

This is the fear we hear most: being told no when you are already sick. Medicare Advantage plans commonly require approval before a scan, a procedure or a rehab stay. The process can take time, and a request can be denied. Original Medicare with a Supplement rarely requires advance approval. If you have a chronic condition or expect surgery, weigh this honestly.

Monthly cost versus yearly risk

A Supplement has a monthly premium you pay whether you use it or not, plus a Part D premium. In return, your share of big bills is small and predictable. Medicare Advantage often has a low monthly premium, sometimes none beyond your Part B premium, and you pay copays as you go, up to a yearly out-of-pocket limit. The question is not which is cheaper. It is which kind of cost you would rather carry: steady and known, or low until something happens. Our Medicare costs page has the current figures.

Missouri’s anniversary rule

Lee’s Summit is in Missouri, and that tilts one thing in favor of the Supplement road. Once you have a Medigap plan, Missouri lets you move to the same plan letter with a different company each year, within 30 days before or after your policy anniversary, without health questions. If your company raises rates, you are not stuck. Kansas, across the state line, has no such rule. See Missouri vs Kansas.

Carriers can leave

Blue KC, a long-time Kansas City carrier, left the Medicare Advantage market at the end of 2024 and sent about 30,000 members looking for new plans. Medicare has protections when a plan ends, but it is still a disruption. Supplement plans are guaranteed renewable: as long as you pay the premium, the company cannot cancel your policy because of your health.

A side by side

	Original Medicare plus Supplement and Part D	Medicare Advantage
Doctors and hospitals	Any that accept Medicare	Plan network, changes yearly
Referrals and prior approval	Rarely	Common
Monthly premium	Higher	Lower, sometimes none beyond Part B
Cost when you are sick	Small, predictable	Copays up to a yearly limit
Dental, vision, hearing	Not included	Often included
Switching later	Health questions may apply, except in your Missouri anniversary window	Every fall in Open Enrollment

The honest answer

There is no winner for everyone. People who travel, see specialists in more than one system, or want to avoid prior approval often lean toward a Supplement. People who are healthy, stay close to home, want extras bundled in and prefer a low monthly bill often lean toward Advantage. Which one fits depends on how much risk you are comfortable carrying and which doctors you cannot imagine giving up.

One warning: it is much easier to go from a Supplement to Advantage than the other way. Leaving Advantage for a Supplement later usually means health questions unless a protection applies. So if you are on the fence at 65, the Supplement road keeps more doors open.

What to do next

Write down your doctors, your hospital and your medicines. Then call us first, before you enroll in anything. We are a local, independent agency and we offer both kinds of plans from many insurance companies, so we have no reason to steer you. There is no fee to work with us, and prices are the same as going direct. Start with your doctors and hospitals, or book a free Lee’s Summit comparison.