Does Medicare Cover Cancer Treatment?
Direct Answer: Yes, Medicare covers medically necessary cancer treatments, including chemotherapy, radiation therapy, cancer surgery, immunotherapy, diagnostic imaging, and hospital care, when clinical requirements are met.
How the Four Parts of Medicare Cover Cancer Care
Medicare Part A (Hospital Insurance)
Covers inpatient hospital stays, inpatient surgery, skilled nursing facility (SNF) care following a hospital stay, and hospice care. Inpatient cancer stays carry a deductible ($1,632 per benefit period in 2026).
Medicare Part B (Medical Insurance)
Covers outpatient medical services: doctor visits, outpatient chemotherapy infusions, radiation therapy, PET/CT scans, diagnostic lab work, bone marrow transplants, and durable medical equipment. Part B typically pays 80% after your annual deductible; you pay a 20% coinsurance with no cap under Original Medicare unless you have Medigap.
Medicare Part D (Prescription Drug Coverage)
Covers self-administered outpatient prescription drugs, including oral chemotherapy pills, anti-nausea medications, pain control drugs, and targeted oral therapies. The annual out-of-pocket cap for Part D is capped at $2,000.
Medicare Advantage (Part C)
Bundles Part A, Part B, and usually Part D into a private plan. Advantage plans must cover everything Original Medicare covers, but require in-network doctors, prior authorization for treatments, and HMO/PPO referral rules.
What You Need to Verify With Your Care Team
- Are your oncologist and hospital in network for your specific plan ID?
- Does your chemotherapy infusion require Part B or Part D coverage?
- Has prior authorization been submitted by your oncology clinic?
Compare Medicare Plans Available in Your Area
Check out-of-pocket limits, specialist copays, and prior auth rules.
Speak With a State Health Insurance Counselor (SHIP)
HIICAP (Health Insurance Information, Counseling and Assistance Program) provides free, unbiased, one-on-one Medicare counseling. SHIP counselors do not sell insurance or receive commissions.