Why do some hospitals not accept Medicare Advantage plans for cancer treatment?

Question

James Hale · Accepted Answer

Top Reasons-

Too much paperwork and denials: Medicare Advantage plans often require “prior approval” for cancer treatments. This creates extra work, delays, and more denials than Original Medicare.

Lower and slower payments: These plans usually pay hospitals less than traditional Medicare for the same care. Cancer treatment is expensive, so some centers lose money. Insurers may also take longer to pay.

Limited networks: Medicare Advantage uses smaller networks, and many top cancer centers are excluded.

How This Affects You-

Original Medicare gives you access to almost any hospital or doctor that accepts Medicare, with much less paperwork. However, it has no yearly out-of-pocket limit.

What You Would Typically Pay-

Part A (hospital/surgery): Deductible per benefit period + daily coinsurance for long stays.

Part B (outpatient chemo, radiation, doctor visits):  After the deductible, 20% coinsurance with no maximum. 

Prescription drugs: Covered under Part D with its own deductible, copays, and out-of-pocket maximum.

Example: $100,000 in outpatient care could cost you $20,000 or more out-of-pocket. Immunotherapy and targeted drugs will cost even more. 

How Most People Protect Themselves-

A Medigap policy usually covers the 20% coinsurance and deductibles, often bringing costs close to zero. You can buy any Medigap plan guaranteed issue (no health questions or denials) during the first 6 months after enrolling in Part B.

Bottom line: Traditional Medicare gives you broad access to doctors and hospitals with little prior authorization hassle, which is great for cancer care. But without a Medigap plan, a serious diagnosis can create large and unpredictable bills because there is no maximum on your liability.

Michael Wallner · Answer

Medicare Advantage Plans are managed by Payor organizations such as United Health Care, Aetna, Humana, etc.. Payor organizations contract with provider organizations to pay for services that are provided to members under their Medicare Advantage Plans. Many times provider organizations and payers are not able to come to agreeable terms, most often disputing over payment rates. Usually the contracts are all or nothing, meaning the contract would cover all services, but there may be certain services like cancer services that are excluded. Payer organizations sometimes have “Preferred Provider” agreements for specialty services and therefore do not need other providers to provide these services in their network. In this case the payor would not look to contract with the hospital and direct its members to the preferred provider. If your hospital is not able to provide these services for you, check with your Managed Care Plan for providers that are in network. Hospital are not obligated to contract with all Managed Care Plans. It payment rates being offered by a Managed Care Plan are too low and do not cover costs, it is likely the hospital will not contract with the payer.

Answered by Michael Wallner on July 13, 2026

Agent Licensed in DE, MD & NY

Answered by Michael Wallner Medicare Insurance Agent

Grace Royer · Answer

Some hospitals do not accept Medicare Advantage plans for cancer treatment because the reimbursement rates are too low to cover the cost of care, in addition to the complex prior authorization process that creates significant administrative burdens for hospitals and their staff. Medicare Advantage plans typically require prior authorization for imaging tests, radiation therapy, inpatient hospital stays, outpatient oncology services, and certain types of chemotherapy that can cause treatment delays, denials, and inferior cancer care, and was a major reason some hospitals recently stopped accepting these plans.

Answered by Grace Royer on May 5, 2026

Broker Licensed in FL, ME, MI & 6 other states

Answered by Grace Royer Medicare Insurance Agent

Melissa Hatten · Answer

Let me keep this real and simple, because this one confuses a lot of people.

Some hospitals don’t take certain Medicare Advantage plans for cancer treatment because those plans work with networks. And cancer care is expensive and very specialized.

Here’s what’s really going on:

First, Medicare Advantage plans have contracts with specific hospitals and doctors. If a hospital or cancer center isn’t in that network, they can choose not to accept that plan. It’s not personal—it’s business.

Second, a lot of top cancer centers want more flexibility than Advantage plans allow. These plans often require referrals, prior authorizations, and have set payment rates. Some hospitals don’t want delays when it comes to serious treatments like chemo, radiation, or surgery—they want to move fast.

Third, reimbursement can be an issue. If a hospital feels like the plan isn’t paying enough for the level of care they provide, they may decide not to participate at all.

Now let me say this part clearly—this does NOT mean Medicare Advantage is bad. It just means you have to check your doctors and facilities before you enroll.

This is exactly why I sit down with my clients and ask:
“If something serious happens, where do you want to go for treatment?”

Because the truth is…
It’s not just about your monthly premium.
It’s about access when you actually need it.

That’s the difference between picking a plan… and picking the right plan.

Voss Speros · Answer

Voss Speros here, Greek god of Medicare. If Medicare's all Greek to you, you're in luck, I'm Greek.

The question today is: why do some hospitals not accept Medicare Advantage plans for cancer treatment? That's a good question. Hospitals should accept all insurances and do the right thing, but some don't.

Medicare Advantage plans have a reimbursement rate to the provider. Medicare pays their reimbursement rate a lot higher than the Advantage plan. The Advantage plans are private pay through companies. The company has a contract with Medicare for so much money, and then they contract with the providers for so much money. Generally, the average rate of a hospital stay across the country is how they determine that.

But hospitals and providers can pick and choose if they want to use the Advantage plans. They'll use some plans but not all. It depends on what it is.

Also, there's pre-authorizations that come with Advantage plans for some things, for some types of treatments. For a lot of treatments, some of these are no brainers and they just push it through. But for big expenses, they want to see what's going on. They want to make sure you've got all your radiation, chemo, going to therapy done, other things, besides just saying hey, I'm going to go in and do this. Chances are it's a totally different animal. You need to get that taken care of.

But if your hospital doesn't take it, let us know and we'll find an Advantage plan that does work with your hospital and get you the care you need. Hope that helps.

Daniel Fraser · Answer

Contracts are signed between providers and the insurance carriers that are allowed to sell Medicare Health Plans (Medicare Advantage) in your area.  When these contracting periods occur, it is the decision between the hospital and the insurance company on if they want to participate with each other.  Normally this is financial matter but other reasons may come into play.

This is another example as to why it is imperative to work with an agent/broker that can determine if your providers are in-network with the Advantage plan you choose.

Marc Rheingold · Answer

Some hospitals don’t take Medicare Advantage for cancer care because the payments can be lower, the plans often require a lot of prior approvals, and the rules can slow down treatment. Cancer care is expensive and complex, so hospitals sometimes avoid plans that limit flexibility or create extra red tape.

Answered by Marc Rheingold on June 30, 2026

Broker Licensed in FL, MI, NC & SC

Answered by Marc Rheingold Medicare Insurance Agent

Don Hansford · Answer

Probably 2 reasons:

1) They are not contracted with the plan to participate in the network.

2) Strictly a financial decision by the hospital based on reimbusement for services. They are not willing to accept the agreed upon dollars for services rendered.

Jennifer Zimmerle · Answer

Not every facility will be in network with every Advantage plan. If you want to make sure the cancer facility of your choice would be in network, should you need it, you should check this before you choose a plan.

Answered by Jennifer Zimmerle on May 6, 2026

Agent Licensed in LA, MS & TX

Answered by Jennifer Zimmerle Medicare Insurance Agent

Frances Eleanor Mitchell · Answer

It is all based on the contract the hospital has with Medicare and the Medicare Advantage company (if they have one) and what their reimbursement will be.

Geney Ruesga · Answer

This depends on the hospitals you use are in the network but no Advantage plan will pay 100%. You will need preauthorization  before treatment  can be covered.

Michael Cantrell · Answer

I think the answer to this question has to with authorizations.  sometimes the authorizations may delay treatment, may take longer than Drs want

Charise Karjala · Answer

This answer is provided in a video format. Watch the agent's video response here: https://medicareagentshub.com/questions/why-do-some-hospitals-not-accept-medicare-advantage-cancer-treatment#charise-karjala