Learn About Medicare Mammogram Coverage and Costs

How Medicare Covers Screening Mammograms

Medicare Part B covers screening mammograms for women at no cost to the beneficiary. A screening mammogram is an X-ray of the breast used to look for signs of cancer in women without symptoms. This coverage applies to women age 40 and older, with specific guidelines about how often women can receive this screening.

According to Medicare's current guidelines, women age 50 and older may receive one screening mammogram every 12 months at no charge. For women ages 40 to 49, Medicare may cover screening mammograms, though coverage policies for this age group have been subject to periodic review. The key word "screening" is important—this refers to mammograms performed when there are no breast symptoms or concerns, as opposed to diagnostic mammograms used when a woman or her doctor suspects a problem.

The no-cost coverage means that Medicare pays 100% of the approved amount for the screening mammogram itself. This includes the cost of the imaging procedure and the radiologist's interpretation of the images. Women should not receive a bill from the provider for this service, though some facilities may ask for a copayment or coinsurance if the provider is not enrolled in Medicare or does not accept Medicare assignment.

To receive this coverage, the mammogram must be performed at a facility certified by the FDA under the Mammography Quality Standards Act (MQSA). These facilities meet specific quality standards for equipment, personnel, and procedures. Most hospitals, imaging centers, and breast clinics are MQSA-certified. Women can ask their healthcare provider or the facility directly whether they are certified.

Practical takeaway: Before scheduling a screening mammogram, confirm that the facility is Medicare-certified and that the provider accepts Medicare assignment. This helps avoid unexpected bills and ensures the facility meets quality standards.

Understanding Diagnostic Mammograms and Costs

A diagnostic mammogram is different from a screening mammogram and is used when a woman has symptoms or when a screening mammogram shows something unusual that requires further evaluation. Symptoms might include breast pain, a lump, nipple discharge, or skin changes. When a screening mammogram finds an abnormality, a diagnostic mammogram provides more detailed images to help the doctor understand what was found.

Medicare also covers diagnostic mammograms under Part B, but the cost-sharing works differently than screening mammograms. For diagnostic mammograms, Medicare typically covers 80% of the approved amount after the Part B deductible is met (which was $240 in 2024, though this amount may change yearly). This means the beneficiary is responsible for 20% of the approved amount as coinsurance. The Part B deductible applies only once per calendar year, so after meeting it, the 20% coinsurance applies to subsequent services.

The actual amount billed can vary based on where the mammogram is performed and the complexity of the procedure. An imaging center in an urban area might charge differently than one in a rural location. If the facility is out-of-network with Medicare, the costs could be higher. The approved amount that Medicare recognizes for payment is set by Medicare's fee schedule and may be lower than what the facility charges.

If a woman has a Medigap policy (supplemental insurance), it may cover some or all of the 20% coinsurance depending on the specific plan. If she has Medicare Advantage (Part C), the cost-sharing rules may be different and should be reviewed in the plan documents or by calling the plan directly. Some Medicare Advantage plans offer $0 cost-sharing for diagnostic mammograms, while others have different copayment or coinsurance amounts.

Practical takeaway: Ask the imaging facility for an estimate of your out-of-pocket costs for a diagnostic mammogram before the procedure. Mention whether you have met your Part B deductible for the year and whether you have supplemental insurance, as this affects what you will owe.

3D Mammography (Tomosynthesis) Coverage Details

3D mammography, also called tomosynthesis, is an advanced imaging technology that creates a three-dimensional picture of the breast by taking multiple X-ray images at different angles. Studies have shown that 3D mammography may detect more cancers and reduce false alarms compared to traditional 2D mammography, though it delivers a slightly higher radiation dose. Medicare began covering 3D mammography in 2015 and continues to pay for it when medically appropriate.

Medicare covers 3D mammography for both screening and diagnostic purposes. For screening 3D mammography, the same $0 cost-sharing rule typically applies as with traditional screening mammograms—Medicare pays 100% of the approved amount for women age 50 and older at MQSA-certified facilities. For diagnostic 3D mammography, the 80/20 cost-sharing applies after the deductible, just like diagnostic 2D mammograms.

However, there are nuances to understand. Some facilities may perform a 3D mammogram along with a traditional 2D mammogram, and both are billed separately. The approved amount for 3D mammography is higher than for 2D mammography because of the additional technology and time involved. As of recent years, the approved amount for bilateral 3D screening mammography is approximately $185 to $195, compared to roughly $90 to $100 for traditional 2D screening mammography. These figures vary by geographic location and are adjusted annually.

Not all facilities offer 3D mammography, and availability varies by region. Rural areas and smaller clinics may not have this technology. A woman and her doctor can discuss whether 3D mammography makes sense for her individual situation. It may be particularly considered for women with dense breast tissue, a family history of breast cancer, or those who have had prior abnormal mammograms.

Practical takeaway: When scheduling a mammogram, ask whether 3D mammography is available and whether your doctor recommends it for your situation. Understand that while Medicare covers it, the cost-sharing is the same as traditional mammography, but the facility fee may be higher, which could affect your out-of-pocket costs.

What Medicare Does Not Cover Related to Mammography

While Medicare covers mammograms themselves, there are related services and items that Medicare typically does not cover. Understanding these gaps helps women anticipate additional costs and make informed decisions about their care. One example is supplemental imaging services sometimes offered alongside mammography, such as breast ultrasound or MRI. If a doctor orders these as follow-up to a mammogram finding, they may be covered as diagnostic imaging, but the cost-sharing rules differ and they are billed separately.

Genetic testing for breast cancer risk (such as BRCA testing) is not covered by Medicare as a routine screening tool. However, Medicare may cover genetic testing in certain circumstances when ordered by a physician and when specific clinical criteria are met, such as personal or family history of breast, ovarian, or related cancers. This is considered a diagnostic test, and coverage decisions are made on a case-by-case basis by Medicare.

Preventive medications such as tamoxifen or aromatase inhibitors taken to reduce breast cancer risk in high-risk women are not covered by Medicare for prevention purposes. These medications are covered when used to treat diagnosed cancer, but not when used solely for risk reduction. Counseling services specifically for breast cancer risk assessment or genetic counseling are also not routinely covered by Medicare, though they may be recommended by a doctor.

Additionally, mammograms performed at non-MQSA-certified facilities are not covered by Medicare, even if the facility performs mammography. This is a quality and safety measure, but it means that certain private or specialized facilities that have chosen not to pursue MQSA certification cannot bill Medicare for mammograms. Women should verify certification before scheduling.

Practical takeaway: Ask your healthcare provider upfront if any additional tests or services are being recommended beyond the mammogram itself, and ask whether Medicare will cover them. This helps you understand your total out-of-pocket responsibility.

Managing Out-of-Pocket Costs and Insurance Coordination

Women with Medicare have several options for managing the out-of-pocket costs associated with mammograms beyond the basic coverage. The primary strategies involve understanding what other insurance or programs might help pay these costs. Many women on Medicare have additional coverage through a current or former employer (retiree health insurance), Medicaid, a Medigap supplemental policy, or a Medicare Advantage plan, each of which affects cost-sharing differently.

Medigap policies are standardized plans