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
Do You Still Need Mammograms After 70 or 75?
This is the question Medicare beneficiaries ask most, and the coverage answer is clear: there is no upper age cut-off. Original Medicare (Part B) covers one screening mammogram every 12 months at $0 for women of any age, including those well into their 80s and 90s, as long as the provider accepts assignment. What changes with age is not coverage but the recommendation. Guidelines diverge after 74 because the evidence from randomized trials thins out for older women, so the decision becomes more individualized.
The U.S. Preventive Services Task Force recommends screening every two years through age 74 and concludes there is insufficient evidence to make a blanket recommendation for women 75 and older. The American Cancer Society takes a practical stance: healthy women 75 and over should continue mammograms if their life expectancy is at least 10 more years and they would be willing to undergo treatment if cancer were found. In other words, the right answer at 78 depends less on the calendar and more on your overall health, other medical conditions, and your own preferences. This is a conversation to have with your doctor rather than a fixed rule.
| Age group | Medicare coverage | Typical guidance |
|---|---|---|
| 65-74 | Free, every 12 months | Continue routine screening |
| 75 and older | Free, every 12 months | Individualize: screen if good health and 10+ year life expectancy |
| Any age, symptoms | Diagnostic mammogram (20% coinsurance applies) | Prompt evaluation, not screening |
Frequently Asked Questions
Is there an age when Medicare stops paying for mammograms?
No. Medicare covers an annual screening mammogram at no cost regardless of age, with no upper limit. The medical recommendation to continue or stop is individualized after 75, but coverage itself never expires.
How often will Medicare pay for a mammogram?
Once every 12 months for a screening mammogram for women 40 and older, at $0 when the provider accepts assignment. A diagnostic mammogram ordered to investigate a symptom or finding is covered more often but is subject to the Part B deductible and 20% coinsurance.
Why was my mammogram billed when screenings are free?
Almost always because it was coded as diagnostic rather than screening. If you have a lump, symptom, or a follow-up after an abnormal screen, the visit becomes diagnostic and cost-sharing applies. Ask your provider how the visit will be billed before your appointment.
Does Medicare cover a 3D mammogram at no extra cost?
Yes. Medicare covers digital breast tomosynthesis (3D mammography) as a screening at $0 when used for routine screening and the provider accepts assignment, the same as a standard 2D screening mammogram.
More Free Screenings Medicare Covers
A mammogram is one of several no-cost preventive screenings Medicare offers seniors. If you are catching up on prevention, these companion guides cover the other major cancer screenings and where they fit in your yearly plan:
- Lung Cancer Screening 2026: Free Medicare LDCT Scan
- Colorectal Cancer Screening for Seniors 2026
- Prostate Cancer Screening 2026: PSA Test & Medicare
- Senior Health Conditions 2026: Expert Prevention & Treatment Guide
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