What is the difference between a screening mammogram and a diagnostic mammogram?

A screening mammogram is a routine preventive study performed when you have no symptoms — typically an annual exam for women 40 and over per most guidelines. A diagnostic mammogram is ordered when a screening mammogram finds something unusual, or when you present with a symptom (lump, pain, discharge). Diagnostic mammograms are more detailed, take longer, and cost more. They are also more likely to be partially covered by insurance even when a deductible hasn't been met.

Is a mammogram covered by insurance without meeting a deductible?

Screening mammograms are classified as preventive care under the ACA and must be covered at 100% by most insurance plans without cost-sharing — meaning no copay, no deductible, and no coinsurance for in-network providers. This applies to annual screening mammograms for women 40 and over. Diagnostic mammograms are treated as diagnostic services and are subject to your deductible and coinsurance. Confirm with your insurer whether your order is classified as screening or diagnostic before the visit.

Where can I get a free or low-cost mammogram without insurance?

The National Breast and Cervical Cancer Early Detection Program (NBCCEDP), funded by the CDC, provides free or low-cost mammograms for women who meet income and age eligibility requirements. Most states participate; contact your state health department or call 1-800-CDC-INFO. Federally Qualified Health Centers (FQHCs) also offer sliding-scale mammography services. Some hospital systems offer community screening events at reduced cost, particularly in October (Breast Cancer Awareness Month).

What is a 3D mammogram (tomosynthesis) and does it cost more?

A 3D mammogram (digital breast tomosynthesis) captures multiple images of the breast from different angles, creating a three-dimensional reconstruction that improves cancer detection rates and reduces false positives compared to standard 2D digital mammography. Most major imaging centers now offer 3D as their standard modality. The cost premium over 2D is $50–$150 at outpatient centers. Insurance coverage for 3D mammography has expanded significantly — most major insurers now cover it at the same rate as 2D screening mammograms for in-network providers.

How Much Does a Mammogram Cost Without Insurance in 2026?

July 6, 2026 · Cost Guide · 6 min read

A screening mammogram without insurance costs $100–$300 at an outpatient imaging center — and $0 for most insured women, because ACA-compliant plans must cover annual screening mammograms as preventive care with no cost-sharing. If you have insurance and are paying for a screening mammogram, the first thing to confirm is whether your plan coded the order correctly and whether the facility is in-network. If you genuinely lack insurance, the price gap between facilities is significant and specific programs exist to reduce or eliminate the cost entirely.

Screening vs. Diagnostic: The Cost Distinction That Matters

The type of mammogram ordered determines both what it costs and how insurance treats it. These two categories have very different financial profiles:

Screening Mammogram

A screening mammogram is a routine preventive study performed on women with no symptoms. Current guidelines from most major medical organizations recommend annual screening starting at 40 (some recommend 45 or 50 depending on risk profile — ask your physician). Screening mammograms are classified as preventive care under the ACA, which means:

Most ACA-compliant health insurance plans must cover them at 100% in-network with no deductible, copay, or coinsurance.
Medicare Part B covers screening mammograms annually for women 40 and older at no cost.
Medicaid coverage varies by state but typically includes screening mammograms for eligible women.

If you have insurance and received a bill for a routine screening mammogram, the most common reasons are: the facility is out-of-network, the claim was coded as diagnostic rather than screening, or your plan predates ACA requirements (grandfathered plans are exempt). Call your insurer's member services line with the claim number to dispute the classification before paying.

Without insurance, screening mammograms at accredited outpatient imaging centers run $100–$250 for standard 2D digital mammography and $150–$350 for 3D (tomosynthesis), which is now the standard modality at most facilities. Hospital radiology departments charge $250–$600 for the same exam due to facility fees — the facility fee is the primary driver of the cost difference, not the scan itself.

Diagnostic Mammogram

A diagnostic mammogram is ordered when:

A screening mammogram finds an area that needs closer evaluation
You present with symptoms — a palpable lump, nipple discharge, breast pain, or skin changes
You have a history of breast cancer, biopsies, or implants that require more detailed imaging protocols

Diagnostic mammograms involve additional views, often ultrasound performed during the same visit, and real-time radiologist involvement in some cases. They take significantly longer than screening mammograms and require physician-ordered interpretation rather than the standard screening read.

Diagnostic mammograms are treated as diagnostic services — subject to your deductible and coinsurance — rather than as preventive care. This distinction matters significantly when you have a high-deductible plan with a large unmet deductible. Without insurance, a diagnostic mammogram runs $200–$500 at outpatient centers and $500–$1,000 at hospital departments when ultrasound is included.

Cost by Facility Type

The facility you choose determines most of the price difference for uninsured patients. The same imaging equipment, interpreted by equivalently credentialed radiologists, produces dramatically different bills based on where the scan is performed:

Freestanding outpatient imaging centers: $100–$300 for screening, $200–$500 for diagnostic. These are the lowest-cost option and provide equivalent diagnostic quality for routine mammography. Many national chains (RadNet, Shields MRI, Alliance HealthCare) and regional centers publish self-pay rates on request.
Hospital outpatient departments: $250–$600 for screening, $400–$1,000+ for diagnostic. The facility fee is the primary cost driver — a charge separate from the radiology read that applies to any service performed in a hospital outpatient setting. The clinical quality is equivalent for routine screening.
Breast imaging specialty centers: $200–$450 for screening. Facilities that specialize exclusively in breast imaging often have competitive pricing for self-pay patients and offer high-volume throughput with radiologists who specialize in breast imaging interpretation — a meaningful quality consideration for complex cases.

3D Mammography (Tomosynthesis): Is It Worth the Extra Cost?

3D mammography (digital breast tomosynthesis, or DBT) has become the standard modality at most accredited imaging centers because it improves cancer detection rates by 20–65% compared to 2D mammography and reduces callback rates (the rate at which patients are called back for additional imaging after a screening) by 15–40%. For women with dense breast tissue — a common finding that makes 2D mammography less accurate — 3D imaging is particularly beneficial.

The cost premium is modest: $50–$150 more than standard 2D at outpatient centers. Most major commercial insurers now cover 3D mammography at the same preventive-care rate as 2D, but state mandate coverage varies — some states require it; others don't. For self-pay patients, the additional cost is worth asking about directly: many facilities charge only a nominal add-on or have standardized a single price that already reflects 3D as the default modality.

Free and Low-Cost Mammography Programs

Several established programs provide free or substantially reduced-cost mammograms for women who lack insurance or cannot afford out-of-pocket costs:

National Breast and Cervical Cancer Early Detection Program (NBCCEDP): CDC-funded program providing free mammograms for women who meet age (40+) and income (at or below 250% of the federal poverty level) requirements. Active in all 50 states and most U.S. territories. Contact your state's health department to find participating providers or call 1-800-CDC-INFO.
Susan G. Komen Foundation: Provides grants to local organizations that offer free or reduced-cost mammograms. The Komen helpline (1-877-GO-KOMEN) can connect you with local programs by zip code.
Federally Qualified Health Centers (FQHCs): FQHCs serve patients regardless of ability to pay and use sliding-scale fees based on income. Many FQHCs provide mammograms directly or have referral arrangements with local imaging centers at no or low cost for eligible patients.
Hospital charity care programs: Hospital systems with significant community benefit obligations often run free screening events in underserved areas, particularly during Breast Cancer Awareness Month in October. Contact the community health or patient financial services department at your local hospital system.
American Cancer Society Reach to Recovery: Connects patients with local resources including free screening access for uninsured women.

What Happens After an Abnormal Screening Result

A screening mammogram that identifies an area of concern triggers a callback — an invitation to return for additional imaging. This is not a cancer diagnosis; most callbacks resolve with additional views or ultrasound that confirm no abnormality. However, additional imaging carries additional cost:

Diagnostic mammogram at callback: $200–$500 without insurance, subject to deductible if insured
Breast ultrasound: Often performed during the same visit as a diagnostic mammogram; adds $150–$400
Biopsy (if needed): Core needle biopsy runs $500–$2,000 without insurance at outpatient centers; surgical biopsy significantly more

If a callback or additional imaging is recommended, ask whether the facility can perform the diagnostic mammogram and ultrasound in the same visit and whether they can quote the self-pay rate for all services upfront. Bundled appointments reduce total out-of-pocket cost and avoid multiple visit fees. For context on how insurance coverage works for follow-up diagnostic services, see our guide on health insurance deductibles, copays, and out-of-pocket maximums. Our guide on preventive care covered by insurance explains the ACA preventive care classification rules in detail. Browse healthcare providers and imaging centers near you or search by city to find accredited breast imaging facilities in your area.

Frequently Asked Questions

How much does a mammogram cost without insurance?: A screening mammogram at an outpatient imaging center costs $100–$300 without insurance. A diagnostic mammogram (ordered after an abnormal finding or symptom) costs $200–$500. Hospital-based radiology departments charge more — often $400–$800 for a screening mammogram — due to facility fees. Self-pay and cash-pay rates are typically available for 30–50% less than the billed rate.
What is the difference between a screening mammogram and a diagnostic mammogram?: A screening mammogram is a routine preventive study performed when you have no symptoms — typically an annual exam for women 40 and over per most guidelines. A diagnostic mammogram is ordered when a screening mammogram finds something unusual, or when you present with a symptom (lump, pain, discharge). Diagnostic mammograms are more detailed, take longer, and cost more. They are also more likely to be partially covered by insurance even when a deductible hasn't been met.
Is a mammogram covered by insurance without meeting a deductible?: Screening mammograms are classified as preventive care under the ACA and must be covered at 100% by most insurance plans without cost-sharing — meaning no copay, no deductible, and no coinsurance for in-network providers. This applies to annual screening mammograms for women 40 and over. Diagnostic mammograms are treated as diagnostic services and are subject to your deductible and coinsurance. Confirm with your insurer whether your order is classified as screening or diagnostic before the visit.
Where can I get a free or low-cost mammogram without insurance?: The National Breast and Cervical Cancer Early Detection Program (NBCCEDP), funded by the CDC, provides free or low-cost mammograms for women who meet income and age eligibility requirements. Most states participate; contact your state health department or call 1-800-CDC-INFO. Federally Qualified Health Centers (FQHCs) also offer sliding-scale mammography services. Some hospital systems offer community screening events at reduced cost, particularly in October (Breast Cancer Awareness Month).
What is a 3D mammogram (tomosynthesis) and does it cost more?: A 3D mammogram (digital breast tomosynthesis) captures multiple images of the breast from different angles, creating a three-dimensional reconstruction that improves cancer detection rates and reduces false positives compared to standard 2D digital mammography. Most major imaging centers now offer 3D as their standard modality. The cost premium over 2D is $50–$150 at outpatient centers. Insurance coverage for 3D mammography has expanded significantly — most major insurers now cover it at the same rate as 2D screening mammograms for in-network providers.