Genetic testing has become an increasingly important tool in modern medicine. From identifying inherited cancer risks to determining how your body processes certain medications, these tests can shape treatment decisions and improve health outcomes. If you are enrolled in Medicare, you may be wondering whether these tests are covered and what you would need to pay out of pocket.
The short answer is that Medicare does cover many types of genetic testing, but only when specific criteria are met. This guide walks through what is covered, what is not, how costs work, and what to watch out for.
What Is Genetic Testing?
Genetic testing analyzes your DNA to look for changes (mutations) that may be associated with certain diseases, inherited conditions, or drug responses. Results can help your doctor determine your risk for developing specific conditions, choose more targeted treatments, or monitor an existing disease.
Genetic tests range from single-gene analyses that look for one specific mutation to broad panel tests that screen for changes across dozens of genes at once. Some tests use blood samples, while newer liquid biopsy techniques can detect cancer-related genetic material circulating in your bloodstream.
Types of Genetic Tests Medicare Covers
Medicare Part B covers several categories of genetic testing when the tests are deemed medically necessary and ordered by your treating physician. Here are the most common types.
BRCA1 and BRCA2 Testing
BRCA1 and BRCA2 gene mutations significantly increase the risk of developing breast and ovarian cancer. Medicare covers testing for these mutations when your personal or family medical history suggests a hereditary link. For related information, see our article on Medicare cancer treatment coverage. Specific criteria may include a personal history of breast cancer diagnosed before age 45, a diagnosis of triple-negative breast cancer before age 60, or a close family member with a known BRCA mutation.
Medicare generally covers one BRCA1/BRCA2 test per beneficiary per lifetime. Your doctor must document why testing is medically appropriate based on your individual history.
Lynch Syndrome Testing
Lynch syndrome is an inherited condition that raises the risk of colorectal, endometrial, and several other cancers. Medicare covers testing for Lynch syndrome when you meet established clinical criteria such as the revised Bethesda guidelines or Amsterdam Criteria, have a first-degree relative with a known Lynch syndrome mutation, or have been diagnosed with endometrial cancer under age 50.
Early detection of Lynch syndrome can lead to more frequent cancer screenings and preventive measures that may catch problems sooner.
Hereditary Cancer Panels
Beyond BRCA and Lynch syndrome, Medicare may cover broader hereditary cancer panel tests that screen for mutations across multiple genes associated with inherited cancer risk. These multi-gene panels can identify mutations linked to cancers of the breast, ovaries, colon, pancreas, prostate, and other organs.
Coverage for these panels follows the same general principle: the test must be medically necessary, ordered by your treating physician, and expected to influence your diagnosis or treatment plan.
Pharmacogenomic Testing
Pharmacogenomic tests (also called pharmacogenetic tests) analyze how your genes affect the way your body processes certain medications. The results can help your doctor select the right drug and dosage for you, potentially avoiding adverse reactions or ineffective treatments.
Medicare Part B covers pharmacogenomic testing when the results will directly impact your drug management, such as selecting an alternative therapy, adjusting a dose, or changing how a medication is monitored. The test must align with established clinical guidelines, such as those from the Clinical Pharmacogenetics Implementation Consortium (CPIC), or involve gene-drug interactions recognized by the FDA.
This type of testing can be particularly valuable for older adults who take multiple medications, as it may help reduce the risk of harmful drug interactions.
Liquid Biopsies for Cancer
Liquid biopsies are a newer form of genetic testing that analyzes cell-free DNA circulating in your blood to detect cancer-related genetic changes. Medicare has established national coverage for next-generation sequencing (NGS) diagnostic tests, including certain liquid biopsies, for beneficiaries with advanced, metastatic, recurrent, or refractory cancers.
Several FDA-approved liquid biopsy tests now have Medicare coverage for patients whose tumor tissue is insufficient or unavailable for traditional biopsy. These tests can help oncologists identify targeted treatment options based on the genetic profile of a patient's cancer.
Coverage Criteria: What Medicare Requires
Not every genetic test qualifies for Medicare coverage. To be covered, a test must meet all of the following requirements.
Medically necessary. The test must be reasonable and necessary for diagnosing or treating a medical condition. In most cases, this means you have signs, symptoms, or a documented personal or family history that warrants testing. Curiosity alone is not sufficient grounds for coverage.
Ordered by your treating physician. A doctor or other qualified healthcare provider who is actively involved in your care must order the test. Tests ordered by someone who is not your treating physician, or tests you request on your own, are generally not covered.
FDA-approved or FDA-cleared. The test itself must have received approval or clearance from the Food and Drug Administration, ensuring it meets established safety and accuracy standards.
Performed at a CLIA-certified laboratory. The lab that processes your test must hold a valid certificate under the Clinical Laboratory Improvement Amendments (CLIA) program. CMS regulates laboratory testing through CLIA to ensure quality and reliability. If a lab does not have proper CLIA certification, Medicare will not pay for the test.
Part B vs. Part D: Where Does Coverage Fall?
Genetic testing falls under Medicare Part B (medical insurance), not Part D (prescription drug coverage). Part B covers outpatient diagnostic tests, including laboratory tests ordered by your physician. This means genetic tests that meet coverage criteria are billed through Part B.
Part D covers prescription drugs dispensed at pharmacies. While pharmacogenomic testing can influence which drugs you are prescribed, the test itself is a diagnostic service covered by Part B. The medications that your doctor prescribes based on the test results would then be covered under Part D (or Part B, depending on the medication and how it is administered). To understand how Part D organizes medications and sets prices, see our guide to formulary tiers and coverage.
Understanding this distinction matters because your cost-sharing obligations differ between Part B and Part D. Genetic tests follow Part B's deductible and coinsurance structure.
Costs and Cost-Sharing
When Medicare covers a genetic test, here is how the costs typically break down for 2026:
- Part B deductible: You must first meet the annual Part B deductible of $257 before Medicare begins paying its share.
- Coinsurance: After the deductible, you generally pay 20% of the Medicare-approved amount for the test, and Medicare pays the remaining 80%.
- Doctor visit costs: If the test is ordered during an office visit, standard Part B cost-sharing applies to that visit as well.
If you have a Medigap (Medicare Supplement) policy, it may cover some or all of the 20% coinsurance and possibly the Part B deductible, depending on your plan.
It is worth noting that genetic tests can be expensive. A single-gene test might cost a few hundred dollars, while comprehensive panel tests or liquid biopsies can run into the thousands. When Medicare covers the test, your out-of-pocket responsibility is limited to your deductible and coinsurance on the Medicare-approved amount. However, if a test is not covered, you could be responsible for the full cost.
Always ask your doctor's office to verify coverage with Medicare before proceeding with a genetic test so you are not caught off guard by unexpected bills. If you believe a denied genetic test claim was incorrect, you can appeal the Medicare decision.
Lab Requirements: Why It Matters Where Your Test Is Processed
Medicare requires that genetic tests be performed by laboratories that are certified under the CLIA program. This federal certification ensures that labs meet quality standards for accuracy, reliability, and proper handling of specimens.
If your test is sent to a lab that does not hold a valid CLIA certificate, Medicare will not reimburse the claim, and you may be responsible for the entire cost. Before your test is performed, you can confirm that the lab is CLIA-certified by asking your doctor's office or checking the CDC's online CLIA laboratory search tool.
In addition to CLIA certification, some genetic tests must be performed at labs that participate in the Medicare program and accept Medicare assignment. Labs that accept assignment agree to charge no more than the Medicare-approved amount, which protects you from excess charges.
Genetic Counseling: What Medicare Covers
Genetic counseling helps you understand what your test results mean, assess your risk for inherited conditions, and make informed decisions about screening or treatment. While genetic counseling can be a valuable complement to genetic testing, Medicare's coverage of counseling services has some limitations.
Currently, Medicare does not recognize genetic counselors as independent providers. This means a genetic counselor cannot bill Medicare directly for their services. However, genetic counseling services may be covered when they are provided under the supervision of a physician or other Medicare-recognized provider and billed as "incident to" a physician's services.
In practice, this means that if your doctor's office employs or works with a genetic counselor, the counseling session may be covered under Part B when it is provided as part of your overall care. Telehealth-based genetic counseling may also be available through your provider's office.
Legislation has been introduced in Congress (the Access to Genetic Counselor Services Act) that would allow genetic counselors to bill Medicare directly, but as of early 2026, this has not yet been enacted. If you need genetic counseling, talk to your doctor about how to access these services in a way that may be covered.
Direct-to-Consumer Genetic Tests: Not Covered
Popular direct-to-consumer genetic testing kits, such as those from 23andMe or AncestryDNA, are not covered by Medicare. These tests are purchased directly by consumers and are designed primarily for ancestry information, wellness traits, or general health predispositions rather than for diagnosing or treating specific medical conditions.
Because these tests are not ordered by a treating physician and are not considered medically necessary, they fall outside the scope of Medicare coverage. Additionally, the results from consumer genetic tests are generally not considered clinical-grade and should not be used as a substitute for medically supervised genetic testing.
If a direct-to-consumer test raises concerns about a potential health risk, talk to your doctor. They can determine whether a clinical-grade genetic test ordered through Medicare is appropriate for your situation.
Protecting Yourself from Genetic Testing Scams
One of the most persistent Medicare fraud schemes in recent years involves unsolicited genetic testing. The U.S. Department of Health and Human Services Office of Inspector General (OIG) has issued multiple warnings about scammers who target Medicare beneficiaries with offers of "free" genetic tests.
How the Scam Works
Fraudsters approach Medicare beneficiaries at health fairs, senior centers, farmers markets, parking lots, or through unsolicited phone calls. They offer a "free" cheek swab or saliva test and ask for your Medicare number to process it. In many cases, the test results are never sent to your doctor and have no bearing on your medical care.
Once scammers have your Medicare number, they bill Medicare for expensive genetic tests that can cost $10,000 to $30,000 or more per test. If Medicare denies the fraudulent claim, you could be held responsible for the charges.
How to Protect Yourself
- Never share your Medicare number with anyone who contacts you unsolicited, whether in person, by phone, or online.
- Do not accept genetic testing from anyone other than your own doctor or a provider your doctor has referred you to.
- Be skeptical of "free" offers. Legitimate genetic tests are ordered by your treating physician based on your medical history, not offered by strangers at community events.
- Review your Medicare Summary Notices (MSNs) regularly for any services you do not recognize.
- Report suspected fraud to the Senior Medicare Patrol at 1-877-808-2468, the OIG hotline at 1-800-HHS-TIPS (1-800-447-8477), or by calling 1-800-MEDICARE (1-800-633-4227). For more on protecting yourself, see our article on Medicare fraud prevention.
How Medicare Advantage Plans Handle Genetic Testing
If you are enrolled in a Medicare Advantage (Part C) plan, your plan must cover at least everything that Original Medicare covers. This means that any genetic test covered under Original Medicare Part B will also be covered by your Medicare Advantage plan.
However, there are some differences to be aware of:
- Network requirements. Medicare Advantage plans typically require you to use in-network labs and providers. Make sure the lab performing your test is in your plan's network to avoid higher out-of-network costs or a denied claim.
- Prior authorization. Some Medicare Advantage plans may require prior authorization before certain genetic tests are performed. Your doctor's office can usually handle this process, but it may add time before the test can proceed.
- Cost-sharing differences. While coverage must be equivalent, your copays or coinsurance amounts may differ from Original Medicare. Check your plan's Evidence of Coverage document or call your plan directly to understand your cost-sharing for genetic testing.
- Additional benefits. Some Medicare Advantage plans may offer genetic testing benefits that go beyond what Original Medicare covers. Review your plan documents or contact your plan to learn about any extra coverage.
If you are unsure whether a genetic test is covered under your Medicare Advantage plan, call the member services number on your plan ID card before scheduling the test.
Steps to Take If You Think You Need Genetic Testing
If you believe genetic testing may be appropriate for you, here is a practical path forward:
- Talk to your doctor. Discuss your personal and family medical history. Your doctor can determine whether genetic testing is medically warranted and which specific tests are appropriate.
- Verify coverage. Ask your doctor's office to confirm that the test is covered by Medicare and that it will be processed at a CLIA-certified, Medicare-approved lab.
- Understand your costs. Ask about the Medicare-approved amount for the test and what your out-of-pocket share will be after the Part B deductible and coinsurance.
- Consider genetic counseling. If available through your doctor's office, genetic counseling can help you understand the implications of your results and plan next steps.
- Keep records. Save copies of your test orders, results, and any correspondence with Medicare or your plan for your records.
The Bottom Line
Medicare covers a growing range of genetic tests, from BRCA and Lynch syndrome screenings to pharmacogenomic testing and liquid biopsies for cancer. The key requirements are that the test must be medically necessary, ordered by your treating physician, FDA-approved, and processed at a CLIA-certified lab.
Direct-to-consumer tests and unsolicited "free" testing offers are not covered, and the latter may be a sign of fraud. If you are considering genetic testing, start with a conversation with your doctor, who can guide you toward the right test and help ensure it is covered.
For questions about your specific coverage, contact your plan directly or call 1-800-MEDICARE (1-800-633-4227). You can also visit Medicare.gov for the latest information on covered services.