Medicare in Missouri & Kansas
The three big pieces of your Medicare decision, one page, no jargon. Jump to what you need, or read straight through.
01 · Coverage
Medicare Advantage (also called Part C) is a private, all-in-one alternative to Original Medicare. Instead of the government paying claims directly, an insurance company runs your plan — usually bundling hospital, doctor, and prescription drug coverage together, often with extras like dental, vision, or a gym membership.
Many plans carry a $0 monthly premium, but you're typically working within a network of doctors and hospitals — similar to an HMO or PPO from your working years.
Unlike Original Medicare alone, Advantage plans include an annual out-of-pocket maximum — a real ceiling on a bad year.
Networks, drug formularies, and extra benefits can shift annually. What fit you last year is worth rechecking every Annual Enrollment Period (Oct 15 – Dec 7).
02 · Coverage
Medigap works alongside Original Medicare rather than replacing it. It doesn't add new benefits — it pays the deductibles and coinsurance Original Medicare leaves behind, which is why it's called a "supplement." Plans are standardized by letter (Plan G, Plan N, etc.), so the same letter covers the same things no matter which company sells it — only the premium and the company differ.
See any provider in the country who accepts Medicare. No referrals, no prior authorizations for most care.
Medigap plans don't cover prescriptions — you'll pair one with a standalone Part D plan.
If you already have a Medicare Supplement plan in Missouri, you receive a special annual window to switch to the same plan letter with another carrier—without medical underwriting. Read how it works ↓
The Missouri difference
If you already have a Medicare Supplement plan in Missouri, you receive a special annual window to switch to the same plan letter with another carrier—without medical underwriting. The window runs 30 days before through 30 days after your policy anniversary date.
30 days before and 30 days after your Medigap policy's anniversary date — the date your current policy first went into effect — Missouri gives you a guaranteed-issue right to switch.
Move from one company's Plan G to a different company's Plan G (or N to N, and so on) with no health questions and no denial for pre-existing conditions.
Nobody applies it for you automatically. If it never gets used, your carrier has little reason to keep your premium competitive year after year.
Cross the state line and this right disappears. Kansas has no anniversary or birthday rule — once a Kansas resident is past their one-time Medigap enrollment window, switching carriers generally means qualifying medically all over again. It's a big reason two neighbors with the same plan and the same carrier can end up paying very different premiums.
03 · Coverage
Part D is the piece that covers medications you pick up at the pharmacy. It's either bundled into a Medicare Advantage plan or purchased as a standalone plan alongside Original Medicare or Medigap. Every plan has a formulary — its own list of covered drugs sorted into price tiers — so the same medication can cost very differently from one plan to the next.
The old "donut hole" was replaced by a flat yearly out-of-pocket cap — $2,100 in 2026. Once you hit it, your covered drug costs stop for the rest of the year.
A drug on your plan's list this year isn't guaranteed to stay there next year, or at the same tier. Worth a check every Annual Enrollment Period.
The same prescription can cost less at a pharmacy your plan has partnered with versus a standard one in its network.
Plus · the coverage Medicare skips
Routine dental and vision aren't covered by Original Medicare, and a Medicare Supplement (Medigap) doesn't add them either. I can help you fill that gap with straightforward standalone plans, so cleanings, exams, and glasses aren't all out of pocket.