Medicare Advantage is easy to walk into. For a lot of people, it is a lot harder to walk back out of. That one fact deserves more airtime than the free gym membership and the grocery card combined.
Annual Enrollment opens October 15. Your mailbox is about to fill up with glossy postcards, and your TV is about to tell you that you may be “leaving money on the table.” Some of those plans are good. Some are a great fit for the right person. But the choice between Medicare Advantage and a Medicare Supplement (Medigap) is not a coupon decision. It is closer to picking which road you will be driving on for the next twenty years.
So before you sign anything, here are the five questions I walk every client through. None of them are on the postcard.
Question 1: If I Change My Mind, Can I Get Back Out?
This is the big one, and it is the one almost nobody asks.
When you first turn 65 and enroll in Part B, you get a six-month Medigap Open Enrollment Period. During that window, a Medigap company has to sell you a plan at its standard rate, regardless of your health history. Heart condition, diabetes, a knee replacement on the calendar: doesn’t matter. You’re in.
After that window closes, the rules change in most states. If you pick Medicare Advantage now and decide in three years that you want Medigap instead, the carrier can ask health questions. They can charge you more. They can say no. Medicare itself will always let you switch back to Original Medicare during the right enrollment window. The supplement that sits on top of it is a different story.
There are some exceptions. A handful of states have their own year-round or birthday-month protections. There is also a federal “trial right” if you joined Medicare Advantage when you first became eligible and leave within the first 12 months. But if you are outside those protections, Medicare Advantage can be a one-way door.
That does not make Medicare Advantage a bad choice. It makes it a choice you should make on purpose.
Question 2: Are My Doctors in the Network, and Will They Still Be Next Year?
Medigap works with any doctor or hospital in the country that accepts Medicare. No network, no referrals, no map to study.
Medicare Advantage plans, whether they come from Humana, Aetna, UnitedHealthcare, or anyone else, are built around networks. HMO plans usually keep you inside the network except for emergencies. PPO plans let you go outside, but you will typically pay more when you do.
Checking that your doctors are in the network today is step one. Step two is realizing that networks are renegotiated every year. Health systems and carriers have very public disagreements, and sometimes a whole hospital group drops out for the next plan year. If your cardiologist, your oncologist, or the hospital closest to your house matters to you, ask how stable that relationship has been. And check again every fall.
Two groups should lean especially hard on this question:
- Snowbirds and frequent travelers. If you split the year between two states, a local HMO network may not follow you north (or south).
- Anyone managing an ongoing condition. If you see specialists regularly, the network is not a detail. It is the plan.
Question 3: What Does My Worst Year Look Like?
Most people compare plans by looking at a normal year: a few checkups, some prescriptions, maybe a lab visit. In a normal year, a low-premium Medicare Advantage plan often looks like the obvious winner.
But insurance is not really for your normal year. It is for the year with the surprise hospital stay, the surgery, or the six weeks of physical therapy.
Every Medicare Advantage plan has an annual out-of-pocket maximum for covered services. Once you hit it, the plan pays 100% for the rest of the year. That limit is real protection, and it is something Original Medicare alone does not give you. The catch is that you get to the limit one copay at a time: a copay for each specialist visit, a daily copay for a hospital stay, coinsurance on certain drugs and treatments.
With a popular Medigap plan like Plan G, the math works differently. You pay a higher monthly premium, and in exchange most of your Medicare-approved costs are covered after the Part B deductible. Your worst year and your best year end up looking pretty similar.
Neither approach is wrong. The real question is which one you would rather live with: a lower premium and a possible spike in a bad year, or a steady, higher premium and very few surprises. Write down your answer before you look at any plan. It will save you from getting distracted by the extras.
Question 4: How Do I Feel About Prior Authorization?
Prior authorization means the plan has to approve certain services before you get them. Think advanced imaging, some surgeries, skilled nursing stays, and certain medications.
Medicare Advantage plans use it much more often than Original Medicare does. Plenty of people go years without it ever touching them. But when it does come up, it can mean a delay, a phone call, or an appeal right when you are least in the mood to deal with paperwork.
Original Medicare with a Medigap plan uses very little of it. If Medicare covers the service, your supplement follows along.
This is a personality question as much as a coverage question. Some people are fine with a little process in exchange for a lower premium. Others want to hear “yes” from the doctor and be done. Be honest with yourself about which one you are, and about which one you will be at 82.
Question 5: Are the Extras Worth What I’m Trading for Them?
Dental, vision, hearing, fitness memberships, over-the-counter allowances. These are the headliners on most Medicare Advantage ads, and they can be useful. A plan that helps cover glasses and hearing aids has real value for a lot of people.
But read the fine print on each one. Dental benefits often come with annual caps, waiting periods, or coverage that leans toward cleanings more than crowns. Hearing and vision allowances can be narrow. And the extras can change from one year to the next.
On the Medigap side, you would usually pair your supplement with a standalone Part D drug plan and, if you want it, separate dental and vision coverage. More moving parts, yes. But each piece does one job, and you can shop each one on its own.
The trap is choosing your core medical coverage because of the gym membership. The extras should break a tie. They should not make the decision.
A Real-Life Example: Dale in Zephyrhills
Dale is 66 and recently retired from a machine shop near Zephyrhills. He signed up for Part B last year, and his six-month Medigap window had already closed by the time he called us. He was healthy, and his neighbor loved her Medicare Advantage plan, so he was ready to sign up for the same one.
We walked through the five questions together. The network included his primary care doctor. The plan’s extras looked great on paper. But Dale also mentioned two things in passing. First, his daughter lives in North Carolina, and he planned to spend summers there once his grandkids started school. Second, his dad and his older brother had both had heart surgery in their early 70s.
That changed the conversation. A local HMO network would not travel well. And if Dale ever wanted to switch to Medigap later, his own health by then might make that harder or more expensive.
Because his open enrollment window had passed, we checked whether he could still qualify for Medigap now while he was healthy. He could. He went with a Plan G from Mutual of Omaha, plus a standalone Part D plan. His monthly cost is higher than his neighbor’s. He knew that going in. What he bought was the ability to see any doctor who takes Medicare in either state, and a lot less worry about what his 70s might look like.
His neighbor still loves her Medicare Advantage plan, by the way. For her, it is a great fit. That is the whole point. Same choice, different person, different answer.
What This Means for You
Medicare Advantage versus Medigap is not a question with one right answer. It is a question with a right answer for you, and the five questions are how you find it:
- If I change my mind, can I get back out?
- Are my doctors in the network, and will they still be next year?
- What does my worst year look like?
- How do I feel about prior authorization?
- Are the extras worth what I’m trading for them?
If you are turning 65 soon, your Medigap Open Enrollment window is the single most valuable six months in your Medicare life. Do not let it slip by without at least thinking it through. If you are already on Medicare Advantage and something has changed, like your health, your doctors, or where you spend your winters, Annual Enrollment (October 15 through December 7) is your chance to take a fresh look.
We are carrier-independent, which means we can show you both sides honestly and help you pick the road that fits. We work for you, not the carriers. No call centers, no pressure. Just a real conversation with a real advisor, in plain English.
Want a real conversation about this? Book a Healthcare Review. One hour, free, plain English.
