Every year, tens of thousands of women over 65 skip their mammogram because they assume it will cost too much — not realizing that Medicare covers screening mammograms at zero cost for most beneficiaries. Breast cancer is the second most common cancer in American women, and your risk does not decrease with age. In fact, the majority of new breast cancer diagnoses occur in women over 60. Understanding exactly what Medicare covers, how often, and how to access these benefits could mean catching breast cancer at its most treatable stage — when the 5-year survival rate exceeds 99%.
Medicare Mammogram Coverage 2026: Screening vs. Diagnostic
Medicare covers two types of mammograms, and the cost difference between them is significant:
| Type | Frequency | Your Cost | What It Covers |
|---|---|---|---|
| Screening Mammogram | Once every 12 months | $0 — no deductible, no coinsurance | Routine annual breast cancer screening for women with no symptoms |
| Diagnostic Mammogram | As medically necessary | 20% coinsurance after $283 Part B deductible | Follow-up imaging for a lump, pain, or abnormal screening result |
A screening mammogram is preventive. Because it is classified as a preventive service under Medicare Part B, there is no cost to you. A diagnostic mammogram is ordered because of a specific concern — a lump, nipple discharge, or abnormal screening result — and falls under Part B’s cost-sharing rules.
Who Qualifies for a Free Medicare Mammogram in 2026?
To receive your free annual screening mammogram under Medicare, you must: be enrolled in Medicare Part B, be a woman age 40 or older, be at least 11 months after your last covered screening mammogram, and use a Medicare-certified mammography facility.
There is no upper age limit. Medicare does not stop covering annual mammograms at age 70, 75, or 80. As long as you are enrolled in Part B, you are entitled to this benefit every year, regardless of age — a common misconception that causes many older women to forgo screening unnecessarily.
Breast Cancer in Older Women: Why Screening Matters More, Not Less
Key statistics from the American Cancer Society and National Cancer Institute confirm the critical importance of screening for older women:
- The median age of breast cancer diagnosis is 62 years old
- Women aged 70–74 have the highest incidence rate of breast cancer of any age group
- Approximately 2 in 3 invasive breast cancers occur in women 55 and older
- When caught at Stage I, the 5-year survival rate exceeds 99%
- When caught at Stage IV, the 5-year survival rate drops to 28%
Does Medicare Cover 3D Mammograms (Tomosynthesis)?
Yes. Since 2015, Medicare has covered 3D mammography (digital breast tomosynthesis) at the same rate as standard 2D mammography — no additional charge for your annual screening. 3D mammography is particularly beneficial for women with dense breast tissue — common in post-menopausal women — improving cancer detection rates by approximately 40% compared to standard 2D mammography in women with dense breasts.
Ask your radiology facility whether they offer 3D mammography and confirm it is Medicare-certified before scheduling.
The 2024 USPSTF Guidelines Update: What Changed for Seniors
In 2024, the U.S. Preventive Services Task Force updated its mammography guidelines to recommend women of average risk start screening at age 40 (lowered from 50) and continue every other year through age 74. Medicare’s coverage is more generous than these minimums — Medicare covers annual mammograms with no upper age limit. For women over 74, Medicare continues to pay for annual screening, and your doctor can help you decide whether continued screening makes sense based on your individual health.
Dense Breast Tissue: What Medicare Patients Must Know
Approximately 40–50% of women have dense breast tissue. Dense tissue can mask cancers on a standard mammogram and is itself a mild independent risk factor for breast cancer. After your mammogram, you will receive written notification if your results show dense breast tissue. If notified, discuss with your doctor whether supplemental imaging (ultrasound, MRI) is appropriate — Medicare may cover these with proper medical documentation.
Medicare Advantage Plans and Mammogram Coverage
If you are enrolled in a Medicare Advantage (Part C) plan, your mammogram coverage must be at least as good as Original Medicare — annual screening mammograms must be covered at zero cost. However, Medicare Advantage plans differ in important ways: you must use in-network providers, some plans require a referral from your primary care doctor before scheduling, and diagnostic mammograms may require prior authorization. Always confirm with your specific plan before scheduling.
What to Do If Your Mammogram Finds Something
About 1 in 10 women will be called back after a screening mammogram for additional imaging — this is common and does not necessarily mean cancer. If a biopsy is recommended, Medicare covers ultrasound-guided or stereotactic biopsy under Part B at 80% after deductible. If cancer is diagnosed, Medicare covers surgery, chemotherapy (Part B for IV infusions, Part D for oral medications), radiation therapy, and comprehensive follow-up care.
Other Breast Health Services Covered by Medicare at No Cost
- Clinical breast exam: Included in your Annual Wellness Visit at $0
- Genetic counseling for BRCA testing: Covered for women with a qualifying family history
- BRCA genetic testing: Covered for women meeting risk criteria under Part B
Step-by-Step: Schedule Your Free Medicare Mammogram
- Find a Medicare-certified facility: Use Medicare.gov/care-compare
- Call to schedule: Tell staff you are a Medicare Part B beneficiary wanting your annual screening mammogram — confirm it will be billed as a preventive service at $0
- Bring your Medicare card or your Medicare number and date of birth
- No referral needed for screening under Original Medicare — self-refer directly
- Track the date: Medicare requires at least 11 months between covered screening mammograms
Medicare has already paid for your mammogram. All you have to do is make the appointment.
— Margaret Collins, Senior Health Expert
Sources
- Medicare.gov — Mammography Services
- American Cancer Society — Breast Cancer Screening Guidelines
- USPSTF — Breast Cancer Screening Recommendation
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