Medicare Coverage for 3D Mammograms

Medicare Part B covers 3D mammograms (also called tomosynthesis) the same way it covers standard 2D mammograms — as a preventive screening with no cost to you if you meet the requirements. You pay nothing for the mammogram itself when performed at an in-network facility and ordered by your doctor as a screening test, not a diagnostic one.

The catch is that not every facility offers 3D mammograms, and not every doctor orders them. Some imaging centers have only 2D equipment. If your doctor orders a 3D mammogram and the facility has the equipment, Medicare covers it. If the facility only has 2D capability, you get a 2D mammogram instead, still covered at no cost.

Coverage depends on your age and screening frequency. Medicare covers one screening mammogram every 12 months for women 40 and older. If you are under 50, your doctor must order it for it to be covered; if you are 50 or older, Medicare covers it without a doctor's order, though most women still get one from their doctor.

Key Takeaways

  • Medicare Part B covers 3D mammograms at no cost when used for screening (not diagnosis) at an in-network facility.
  • Coverage is limited to one screening mammogram per 12 months, regardless of whether it is 2D or 3D.
  • If your facility does not have 3D equipment, Medicare covers a standard 2D mammogram instead at the same cost to you (zero).
  • If a mammogram becomes diagnostic (because something abnormal is found), you may owe a copay or coinsurance depending on your plan.
  • Medigap and Medicare Advantage plans may cover costs differently, so check your specific plan documents.

The Difference Between Screening and Diagnostic Mammograms

This distinction matters because Medicare's coverage rules are different. A screening mammogram is ordered when you have no symptoms and no known breast abnormality — it is a routine check. Medicare covers one per year at no cost to you.

A diagnostic mammogram is ordered when you have symptoms (like a lump or pain), an abnormal screening result, or a history of breast cancer. Medicare treats this as a medical service, not prevention, so you may owe a copay (usually $15 to $50) or 20% coinsurance after you meet your Part B deductible. The 3D technology does not change this rule — it is the reason for the mammogram that determines your cost.

If your screening mammogram finds something that needs follow-up imaging, that follow-up is diagnostic and subject to cost-sharing. This is why some women see a bill after a mammogram they thought was free.

What You Pay at Different Types of Facilities

Your out-of-pocket cost depends on where you have the mammogram done and what type of Medicare coverage you have. At a hospital outpatient department, you may owe a facility fee in addition to the provider fee, even for a screening mammogram covered by Medicare. At an independent imaging center, you typically owe nothing for a covered screening.

If you have Original Medicare (Part A and Part B), a covered screening 3D mammogram costs you $0. If you have a Medicare Advantage plan, your plan may require a copay even for preventive services — check your plan documents or call the plan to confirm. Some Advantage plans waive the copay for preventive mammograms; others do not.

If you have a Medigap policy, it may cover your Part B coinsurance and deductible, but only if the mammogram is covered by Medicare in the first place. Medigap does not cover services Medicare does not cover.

How to Make Sure Your 3D Mammogram Is Covered

Before you schedule, confirm three things: that the facility has 3D equipment, that your doctor will order it as a screening (not diagnostic), and that the facility is in-network for your plan. Call the imaging center directly and ask whether they perform 3D mammograms and whether they accept your Medicare plan.

If you have a Medicare Advantage plan, check your plan's provider directory or call the plan to confirm the facility is in-network. Out-of-network imaging can cost you significantly more, even for preventive services. If you have Original Medicare, any Medicare-enrolled provider is in-network, but you still want to confirm they have 3D capability.

Ask your doctor's office to note on the order that this is a screening mammogram, not diagnostic. This protects you from unexpected bills if the facility tries to bill it differently. If the facility later finds something abnormal and needs additional imaging, they will contact you — that follow-up will be diagnostic and subject to your cost-sharing.

When You Will Owe Money for a Mammogram

You will owe a copay or coinsurance if the mammogram is diagnostic rather than screening, if you have not met your Part B deductible (currently $226 in 2024, though this changes yearly), or if you go to an out-of-network facility with a Medicare Advantage plan.

You may also owe money if the facility bills for a facility fee (common at hospital outpatient departments) or if additional imaging is needed after the initial mammogram. Some women receive a bill weeks later for a "facility charge" they did not expect — this is most common at hospital-based imaging centers.

If you receive a bill you believe is wrong, ask the facility for an itemized statement showing what was billed and why. Compare it to your Medicare Summary Notice (mailed quarterly or available online through your Medicare account) to see what Medicare paid and what you owe.

3D Mammograms and Medicare Advantage Plans

Medicare Advantage plans must cover the same preventive services as Original Medicare, including screening mammograms, at no cost to you. However, some plans require you to use in-network providers, and not all in-network imaging centers have 3D equipment.

Call your Advantage plan before scheduling to confirm the facility is in-network and has 3D capability. If your plan's in-network facilities do not offer 3D, you have two options: go out-of-network (which may cost you more) or accept a 2D mammogram at no cost. Some plans will cover an out-of-network 3D mammogram if no in-network facility offers it, but you must get prior approval.

Plans vary widely on this, so do not assume. A five-minute call to your plan can save you from a surprise bill or a trip to a facility that cannot provide what you need.

Frequently Asked Questions

Does Medicare cover 3D mammograms if I am under 50?

Yes, if your doctor orders it as a screening test. Medicare covers screening mammograms for women 40 and older, and the technology (2D or 3D) does not change that. Women under 50 need a doctor's order; women 50 and older do not, though most still get one.

What if my doctor orders a 3D mammogram but the facility only has 2D equipment?

Medicare will cover a 2D mammogram at that facility at no cost to you. You cannot be charged extra to go elsewhere for 3D. If you want 3D specifically, you can choose to go to a different facility that has it, but you are not required to.

Will I owe money if the mammogram finds something abnormal?

The initial screening mammogram is covered at no cost. If something abnormal is found and additional imaging is ordered (like a diagnostic ultrasound or another mammogram), that follow-up imaging is diagnostic and subject to your copay or coinsurance. The facility should tell you this before proceeding.

Can I get a 3D mammogram more than once a year?

Medicare covers one screening mammogram per 12 months, whether 2D or 3D. If your doctor orders additional mammograms for diagnostic reasons (because of symptoms or an abnormal finding), those are covered separately but subject to cost-sharing. Routine screening is limited to one per year.

Do I need to pay upfront, or will Medicare bill me later?

For a covered screening mammogram at an in-network facility, you should owe nothing. The facility bills Medicare directly. If you are asked to pay at the time of service for a screening mammogram, ask why — it may be a mistake, or the facility may be incorrectly classifying it as diagnostic.