Medicare covers a broad range of cancer treatments, from screenings that catch cancer early to chemotherapy, radiation, and inpatient surgery. But coverage is split across multiple parts of Medicare, and the cost-sharing under Original Medicare can add up quickly if you do not have supplemental coverage. This guide breaks down exactly what Medicare pays for in 2026, what you will owe, and which savings programs can help lower those costs.
What Medicare Parts Cover Cancer Treatment
Medicare is divided into parts, and cancer treatment touches nearly all of them depending on where and how you receive care.
Part A (Hospital Insurance) covers inpatient hospital stays, including surgeries performed in a hospital setting, inpatient chemotherapy when it is medically necessary to administer it during a hospital admission, and care in a skilled nursing facility after a qualifying hospital stay.
Part B (Medical Insurance) covers the bulk of outpatient cancer treatment, including chemotherapy infusions administered in a doctor's office or outpatient hospital setting, radiation therapy, and most cancer-related physician visits, lab work, and imaging.
Part D (Prescription Drug Coverage) covers oral chemotherapy pills and other cancer-related medications taken at home. This is a standalone plan added to Original Medicare or built into a Medicare Advantage plan.
Medicare Advantage (Part C) bundles Parts A, B, and usually D into a single plan offered by a private insurer. These plans must cover everything Original Medicare covers, and many add additional benefits and cap your annual out-of-pocket spending.
2026 Cost Breakdown for Cancer Patients
Understanding your actual costs requires looking at each part's deductibles, premiums, and coinsurance separately.
Part A Costs (Inpatient Care)
| Cost Type | 2026 Amount |
|---|
| Inpatient deductible (per benefit period) | $1,736 |
| Days 1-60 coinsurance | $0 |
| Days 61-90 coinsurance (per day) | $433 |
| Days 91+ coinsurance (lifetime reserve, per day) | $866 |
A "benefit period" begins the day you are admitted to a hospital and ends when you have been out of the hospital for 60 consecutive days. If cancer treatment requires multiple hospital stays, you may owe the $1,736 deductible more than once in a year.
Part B Costs (Outpatient Chemotherapy and Radiation)
| Cost Type | 2026 Amount |
|---|
| Monthly premium (standard) | $185.00 |
| Annual deductible | $283 |
| Your share after deductible | 20% of Medicare-approved amount |
| Annual out-of-pocket cap | None under Original Medicare |
The 20% coinsurance under Part B has no cap in Original Medicare. For a cancer patient whose outpatient chemotherapy costs $8,000 per infusion, the 20% share is $1,600 per session. Without Medigap or Medicare Advantage, costs can become significant over a treatment cycle.
Part D Costs (Oral Cancer Medications)
| Cost Type | 2026 Amount |
|---|
| Out-of-pocket cap (calendar year) | $2,100 |
| Cost above cap | $0 |
This is a major change that took effect in 2025 under the Inflation Reduction Act. Oral chemotherapy drugs, which previously could cost thousands per month in out-of-pocket expenses, are now subject to a hard $2,100 annual cap. Once you reach that threshold, Medicare Part D covers 100% for the rest of the year.
Medicare Advantage Out-of-Pocket Maximum
| Coverage Type | 2026 Cap |
|---|
| Medicare Advantage in-network maximum | $9,250 |
| Many individual plans set lower limits | Varies by plan |
If you enroll in a Medicare Advantage plan, your spending is capped at the plan's annual out-of-pocket maximum. This can offer meaningful protection compared to Original Medicare, which has no Part B cap.
Cancer Screenings Medicare Covers at No Cost
Medicare covers preventive screenings at $0 cost to you when you use a Medicare-participating provider. These screenings are designed to catch cancer before symptoms appear.
| Screening Type | Frequency | Your Cost |
|---|
| Mammogram (women 40 and older) | Once every 12 months | $0 |
| Baseline mammogram (women 35-39) | Once | $0 |
| Colonoscopy (average risk) | Once every 10 years | $0 |
| Colonoscopy (high risk) | Once every 2 years | $0 |
| Cervical and vaginal cancer screening | Once every 24 months (higher risk annually) | $0 |
| Lung cancer screening CT (eligible smokers) | Annually | $0 |
| PSA test for prostate cancer (men 50 and older) | Annually | $0 |
Note: If polyps are removed during a colonoscopy, a 15% coinsurance applies through 2026. That rate drops to 10% from 2027 to 2029 and is eliminated starting in 2030.
If a screening leads to a diagnostic test (for example, a diagnostic mammogram after an abnormal result), Part B applies its 20% coinsurance after the $283 deductible. That is a meaningful distinction when a suspicious result triggers further imaging.
Specific Treatments and What Medicare Pays
Chemotherapy
Chemotherapy infused in an outpatient hospital or doctor's office falls under Part B. Medicare pays 80% after the $283 deductible. You pay 20% with no cap under Original Medicare.
Oral chemotherapy taken at home falls under Part D. The $2,100 annual out-of-pocket cap makes this significantly more predictable than in prior years.
Chemotherapy given during a hospital inpatient stay is covered under Part A as part of the inpatient benefit.
Radiation Therapy
Radiation therapy in an outpatient setting is covered under Part B at 80/20 after the deductible. Radiation during a hospital admission is covered under Part A.
Cancer Surgery
Surgery for cancer in an inpatient hospital is covered under Part A. You pay the $1,736 per-benefit-period deductible, then nothing for the first 60 days. Outpatient surgical procedures fall under Part B.
Targeted Therapy and Immunotherapy
Infused targeted therapies and immunotherapy drugs given in an outpatient setting are billed under Part B. Oral formulations of these drugs are covered under Part D and are subject to the $2,100 cap.
Bone Marrow and Stem Cell Transplants
These are covered under Medicare when deemed medically necessary, typically under Part A for inpatient admission. Coverage requires prior authorization in some Medicare Advantage plans.
Hospice Care
If a cancer patient's condition becomes terminal, Medicare Part A covers hospice care when a physician certifies a life expectancy of six months or less. Hospice covers pain management, symptom control, and support for family caregivers.
Medicare Savings Programs for Cancer Patients
For beneficiaries with limited income and resources, Medicare Savings Programs (MSPs) can dramatically reduce cancer treatment costs by covering premiums, deductibles, and coinsurance.
2026 MSP Income and Resource Limits
| Program | Individual Monthly Income | Couple Monthly Income | Individual Resources | Couple Resources | What It Covers |
|---|
| QMB (Qualified Medicare Beneficiary) | Up to $1,350 | Up to $1,824 | Up to $9,950 | Up to $14,910 | Part A and B premiums, deductibles, coinsurance, copays |
| SLMB (Specified Low-Income Medicare Beneficiary) | $1,350 to $1,616 | $1,824 to $2,184 | Up to $9,950 | Up to $14,910 | Part B premium only |
| QI (Qualifying Individual) | $1,616 to $1,820 | $2,184 to $2,459 | Up to $9,950 | Up to $14,910 | Part B premium only (limited slots, first-come basis) |
Resource limits generally exclude your home, one car, personal belongings, and life insurance policies under a certain value. Alaska and Hawaii have higher income limits.
QMB is the most powerful savings program for cancer patients. If you qualify, Medicare providers cannot legally bill you for any cost-sharing on covered services. Chemotherapy copays, radiation coinsurance, lab fees -- all eliminated. Enrolling in QMB also automatically qualifies you for Extra Help on Part D, which reduces prescription drug copays to no more than $5.10 for generics and $12.65 for brand-name drugs in 2026.
To apply for an MSP, contact your state's Medicaid agency. The application is separate from Medicare enrollment.
Extra Help (Low Income Subsidy) for Part D
Even if you do not qualify for an MSP, Extra Help can reduce your Part D costs independently. In 2026, Extra Help can:
- Eliminate the Part D deductible
- Cap monthly premiums
- Reduce copays to $5.10 (generics) or $12.65 (brand-name) per prescription
- Eliminate the coverage gap
Income limits for Extra Help are approximately 150% of the Federal Poverty Level, which comes to about $22,590 for a single person in 2026. Resources must be under $17,220 for an individual.
You can apply for Extra Help through Social Security at ssa.gov/extrahelp.
How Medicare Advantage Compares for Cancer Patients
Medicare Advantage plans can offer meaningful protections that Original Medicare lacks. Key differences:
- Annual out-of-pocket maximum (federally capped at $9,250 in 2026 for in-network care)
- Many plans offer $0 premiums and lower coinsurance for chemotherapy
- Some plans include dental and vision coverage that can matter during cancer treatment
- Network restrictions mean your oncologist and cancer center must be in-network
- Prior authorization requirements are more common and can delay treatment
For cancer patients, the most important question when comparing plans is whether your oncology team and the hospital where you receive treatment are in the plan's network. A plan that saves on premiums but excludes your cancer center creates more problems than it solves.
Medigap Supplemental Insurance
Medigap policies (also called Medicare Supplement plans) fill in Original Medicare's cost-sharing gaps. Plans G and N are the most commonly purchased in 2026.
Plan G covers nearly all gaps in Original Medicare after you pay the Part B deductible, meaning your 20% chemotherapy coinsurance is covered. Plan N covers most gaps but requires copays for some office visits.
A key limitation: Medigap is not available to Medicare Advantage enrollees. You choose one path or the other.
If you are newly diagnosed with cancer and enrolled in a Medicare Advantage plan with a restrictive network, switching to Original Medicare plus Medigap outside of your enrollment period may require medical underwriting in most states. Several states, including California, Connecticut, and New York, allow guaranteed issue regardless of health status.
Step-by-Step: How to Verify and Maximize Your Cancer Coverage
Step 1: Confirm your cancer care team accepts Medicare.
Visit medicare.gov/care-compare or call 1-800-MEDICARE (1-800-633-4227) to verify that your oncologist, hospital, and treatment facility accept Medicare assignment.
Step 2: Check whether you qualify for a Medicare Savings Program.
Contact your state Medicaid office or call 1-800-MEDICARE to ask about MSP eligibility. QMB enrollment can eliminate all cost-sharing on covered treatments.
Step 3: Apply for Extra Help if your income is under 150% FPL.
Go to ssa.gov/extrahelp or call Social Security at 1-800-772-1213 to apply. If approved, your Part D costs for oral chemotherapy will drop significantly below the $2,100 cap.
Step 4: Review your Part D plan's formulary.
Your specific cancer medications must be on your plan's formulary. Log into medicare.gov and use the plan finder to confirm your drugs are covered. If they are not covered, you can request an exception from the plan or your doctor can submit a prior authorization request.
Step 5: Consider a Medigap policy if you are on Original Medicare.
A Plan G Medigap policy removes the 20% Part B coinsurance, which is the largest unpredictable expense for outpatient chemotherapy patients.
Step 6: Check whether your cancer center offers financial counseling.
Most major cancer centers have social workers or financial navigators who specialize in Medicare coverage and can identify additional assistance programs, including pharmaceutical manufacturer copay assistance programs.
Step 7: Use the Benefits Navigator screener.
Run a free eligibility check at benefitsusa.org/screener to see which savings programs you may qualify for based on your income, household size, and state.
Frequently Asked Questions
Does Medicare cover all types of chemotherapy?
Medicare covers chemotherapy that is medically necessary and administered by a Medicare-enrolled provider. This includes infused chemotherapy under Part B and oral chemotherapy under Part D. Experimental treatments that are not FDA-approved are generally not covered under standard Medicare, though clinical trial coverage is available under certain conditions.
Is there a cap on what I pay for cancer treatment under Medicare?
Under Original Medicare, there is no cap on Part B coinsurance. Your 20% share of outpatient chemotherapy costs can be unlimited. Part D has a $2,100 out-of-pocket cap in 2026 for prescription drugs. Medicare Advantage plans cap all in-network costs at no more than $9,250 per year.
Does Medicare cover cancer clinical trials?
Yes. Medicare covers routine costs of care in qualifying clinical trials, including doctor visits, lab tests, and treatments related to the trial. Medicare does not cover the experimental drug itself, which is typically provided by the trial at no cost to the participant.
Can I switch to a better plan after a cancer diagnosis?
If you are enrolled in Medicare Advantage and want to switch, you generally have limited opportunities outside of the Annual Enrollment Period (October 15 to December 7) or a Special Enrollment Period triggered by specific life events. A Medigap plan switch outside of your initial open enrollment period may require medical underwriting in most states. Confirming your options before starting treatment is important.
What is the Medicare drug out-of-pocket cap for oral chemotherapy in 2026?
The Part D out-of-pocket cap is $2,100 in 2026. Once you reach that amount in a calendar year, Medicare pays 100% for the rest of the year. This cap applies to all Part D drugs, not just cancer medications.
Does Medicare cover home infusion for cancer treatment?
Yes, under certain circumstances. Medicare Part B covers home infusion therapy for certain drugs when a qualified infusion therapy supplier provides the equipment and nursing services. Coverage depends on the specific drug and whether home infusion is appropriate for your treatment plan.
How does Extra Help lower my Part D costs for cancer drugs?
Extra Help is a federal subsidy that pays most of your Part D premium, eliminates the deductible, and reduces copays to $5.10 for generics and $12.65 for brand-name drugs per prescription in 2026. For a patient on an expensive oral chemotherapy drug, this can reduce annual spending far below the $2,100 standard cap.
What resources are available if Medicare still leaves me with high costs?
Several options can help reduce remaining costs. Medicare Savings Programs cover all Part A and B cost-sharing for QMB enrollees. Medigap plans cover the 20% Part B coinsurance for Original Medicare enrollees. Pharmaceutical manufacturer patient assistance programs may provide free or discounted medications for eligible patients. The American Cancer Society and CancerCare provide financial assistance referrals. Running the free screener at benefitsusa.org/screener can identify which programs you qualify for.
