A Medicare Advantage plan comes with a promise most people rarely test: a hard ceiling on what a bad health year can cost you. What fewer members realize is that the ceiling has two heights, and which one applies depends on whether your care stays inside the plan’s network. When a hospital drops out of that network mid-year, the number that protects you can nearly double — quietly, and without changing a word of your plan documents.
The two out-of-pocket caps, and the $4,404 gap between them
Every Medicare Advantage plan sets a maximum out-of-pocket limit, and once you hit it, the plan covers the rest of your Medicare-covered costs for the year. But that limit is not one number. According to KFF’s analysis of Medicare Advantage plans in 2026, the average in-network out-of-pocket limit is $5,421. For plans that let you go outside the network — typically PPOs — the average combined in-and-out-of-network limit is $9,825.
That $4,404 difference is not a penalty for choosing a bad plan. It is the built-in gap between staying inside the network and stepping outside it. As long as your doctors and hospitals are in-network, the lower ceiling is the one that matters. The moment a major provider you rely on is no longer in-network, the care you get there starts counting toward the higher one.
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Why 2026 has been a year of mid-year exits
Provider networks are supposed to be stable, but this year they have not been. Health systems and insurers have clashed over reimbursement rates and prior-authorization practices, and the result has been a wave of hospitals walking away from Medicare Advantage contracts. Industry tracking cited in a report on mid-year network departures counts at least 25 U.S. health systems dropping Medicare Advantage plans in 2026, some of them mid-contract with as little as 30 to 45 days’ notice to patients.
For a member, the notice can arrive in the middle of a course of treatment. A hospital that was in-network in the spring can be out by summer, which turns a planned surgery or an ongoing specialist relationship into an out-of-network cost overnight — and shifts the year’s spending toward that higher $9,825 ceiling.
The protections you have to ask for, in writing
Here is the part that catches people: the safeguards exist, but they are not automatic. A provider leaving your plan does not by itself trigger a 90-day continuity-of-care extension, and it does not automatically open a Special Enrollment Period to switch plans. Both can be available, but you generally have to request them.
Continuity of care can let you keep seeing an existing provider at in-network cost for a transition period while you are mid-treatment, which is exactly what protects someone in the middle of chemotherapy or recovering from surgery. A Special Enrollment Period, if you qualify, lets you change to a plan that includes your hospital without waiting for the fall open-enrollment window. The common thread is that the plan is not required to volunteer either one. A member who assumes the protections kick in on their own can spend months paying out-of-network rates that a written request might have prevented.
The timing of an exit also interacts with the annual enrollment calendar in a way that can trap someone. Medicare Advantage plans are generally chosen during the fall open-enrollment window, and outside of it a member usually cannot switch plans freely. That is the whole point of asking whether a mid-year departure opens a Special Enrollment Period: without one, a member whose hospital leaves in, say, June may be locked into the plan — and the higher out-of-network costs — until the next enrollment period comes around. Confirming eligibility for a Special Enrollment Period is therefore not a formality but the mechanism that lets a member move to a plan that still includes their hospital.
What to check before you need it
The practical defense is to verify your network before a health event forces the question. Confirm directly with the plan — not just an online directory, which can lag — that your primary hospital and specialists are still contracted for the current year. If a departure notice arrives, call the plan the same week and ask two specific things: whether you qualify for continuity of care to finish current treatment at in-network cost, and whether the change opens a Special Enrollment Period for you.
The reason to move quickly is baked into KFF’s own figures. The whole appeal of Medicare Advantage over Original Medicare is that out-of-pocket cap, and the 2026 numbers show that cap can nearly double the instant care moves out of network. Knowing which of the two ceilings you are living under — $5,421 or $9,825 — is the difference between a manageable bad year and a far more expensive one.
This article was produced with AI assistance and reviewed by a human editor. Figures are linked to their primary sources; where a claim could not be verified from the public record, we say so.
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