A hospital’s departure from a Medicare Advantage network can turn a familiar care site into a much more expensive choice. The size of that risk depends on the plan type, the member’s own benefit document and whether continuing-care protection applies. National averages make the exposure visible, but they do not replace the numbers printed on an individual plan.
The two figures measure different coverage boundaries
KFF’s analysis of 2026 federal plan data found an enrollment-weighted average out-of-pocket limit of $5,421 for in-network services among individual Medicare Advantage enrollees. For PPO members, the average limit combining in-network and out-of-network services was $9,825. The second figure is not a replacement limit that automatically appears whenever one hospital leaves.
The populations and protections differ. The $5,421 figure averages the in-network limits of HMOs and PPOs, while the $9,825 figure describes a combined limit available in PPOs. KFF reports that PPO in-network limits alone averaged $6,592, compared with $4,636 for HMOs. A member therefore needs the plan’s actual evidence of coverage, not a subtraction between two national figures.
Both averages are also below federal maximums. For 2026, plans may set an in-network limit as high as $9,250 and a combined in- and out-of-network limit as high as $13,900. Those caps apply to Medicare-covered Part A and Part B services, not Part D drug spending, premiums or every service a provider may bill.
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A network exit exposes the plan’s underlying design
A PPO generally covers nonemergency care outside its network, but the member commonly pays higher coinsurance and works toward the larger combined limit. An HMO generally does not cover routine out-of-network care at all, except for emergencies and any specific point-of-service benefit. Medicare’s plan comparison describes that difference, which can matter more than the insurer’s brand name.
The hospital contract is only one layer. Surgeons, anesthesiology groups, laboratories and rehabilitation providers can have separate network agreements. A hospital may remain in network while a clinician does not, or the facility may leave while some affiliated professionals stay. Each provider’s status should be checked against the exact plan contract before a scheduled service.
Prior authorization answers a separate question. A plan can agree that a procedure is medically necessary without agreeing that a chosen hospital is in network. An authorization number should therefore be paired with written confirmation of the facility and clinicians’ network treatment, including the cost-sharing tier that will apply.
Continuing-care protection can preserve in-network rates temporarily
CMS’s consumer action plan for a provider leaving a network says a continuing-care patient may qualify for up to 90 days of treatment at in-network rates. Listed situations include serious and complex conditions, inpatient or institutional care, pregnancy and scheduled nonelective surgery. The protection is not a blanket promise for every appointment.
The agency directs patients to ask whether they qualify. A useful request identifies the hospital, treating clinician, course of treatment, expected services and termination date. Written approval should specify the duration and confirm in-network processing. That record becomes essential if an explanation of benefits later assigns out-of-network cost sharing.
CMS also reviews whether Medicare Advantage organizations maintain adequate provider networks. A hospital exit can be disruptive without making the remaining network legally inadequate or creating an automatic special enrollment period. The member can ask the plan and 1-800-MEDICARE whether CMS has authorized enrollment relief for the particular change.
The member’s documents control the household risk
The evidence-of-coverage booklet and online provider directory should be saved before treatment, because network listings can change. A dated screenshot, call reference number and written plan message provide a stronger record than a hospital representative’s oral assurance. The plan’s formal answer should use the full product name shown on the member card.
After a claim, the explanation of benefits shows the allowed amount, plan payment and portion assigned to the member. If the plan disregards an approved transition or applies the wrong network tier, that document starts the appeal. Bills from the hospital alone cannot show how the insurer categorized the service.
An out-of-pocket limit also is not a deductible. Covered cost sharing accumulates during the plan year until the applicable cap is reached, after which the plan pays covered Part A and Part B costs under its rules. Premiums and uncovered services generally sit outside that protection. An HMO member who voluntarily uses a noncovered out-of-network hospital may therefore owe charges that do not move the member closer to an in-network maximum. The plan should identify in writing which payments count toward which limit.
KFF’s averages establish why the paperwork matters: PPO members can face a national combined-limit benchmark thousands of dollars above the all-plan in-network average. CMS’s guidance supplies the narrower protection. The plan document and written transition decision determine whether that national risk becomes a specific household bill.
This article was created with AI assistance and was reviewed, edited, and fact-checked by The Financial Wire editorial team.
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David M. Keller is a finance writer based in Columbus, Ohio, covering personal finance and consumer-focused economic topics. He earned his degree in journalism from Ohio University and began his career reporting on local business and economic trends for a regional media outlet. Since then, he has contributed to a variety of online publications, focusing on clear, practical coverage of topics such as cost of living, debt, and everyday financial decision-making.
