Short answer
Medicare covers certain genetic testing for cancer when CMS conditions are met.
CMS says Next Generation Sequencing genetic testing is covered nationally for certain advanced cancers, and for germline (inherited) testing in patients with breast or ovarian cancer who meet the listed conditions, when ordered by a treating physician and run in a certified laboratory. Medicare.gov says a Medigap policy pays its share after Medicare approves a covered service, so a supplement like Plan N follows Medicare’s decision and helps with the cost you owe.
Start here
What you actually came to find out
Plain answers first. Sources stay below for checking details.
Is genetic testing covered?
CMS says yes for certain cancers when the listed conditions are met.
What about breast cancer?
CMS covers germline testing for breast or ovarian cancer under set conditions.
What are the basics?
A treating physician orders it and a certified lab runs it.
Does Medigap help?
A supplement pays its share after Medicare approves the test.
Coverage
Conditional
CMS says genetic testing is covered nationally for certain advanced cancers.
Source trail: CMS
Breast or ovarian
Germline rules
CMS covers germline testing for breast or ovarian cancer under listed conditions.
Source trail: CMS
Requirements
Physician + lab
CMS requires a treating physician order and a certified laboratory.
Source trail: CMS
Supplement
Pays after
Medicare.gov says Medigap pays its share after Medicare approves a service.
Source trail: Medicare.gov
The real planning question is whether the test meets the CMS conditions, because a Medigap plan only helps after Medicare approves the service.
Neutral landscape
The shape of the question
CMS is the main source because its national coverage determination sets when Next Generation Sequencing testing is covered.
Source trail: CMS
The breast and ovarian case is specific, and CMS lists germline-testing conditions for those patients.
Source trail: CMS
The basic requirements matter because CMS ties coverage to a treating-physician order and a certified lab.
Source trail: CMS
The supplement layer follows, since Medicare.gov says Medigap pays its share only after Medicare approves the service.
Source trail: Medicare.gov
Curator core
What the authorities say
These sources are here for the reader who wants to check the work. The plain-English answer stays above them.
Source 01
CMS
National Coverage Determination: Next Generation Sequencing
The CMS national coverage determination sets when Next Generation Sequencing genetic testing is covered, including germline testing for breast or ovarian cancer.
Source framing
CMS says Next Generation Sequencing is covered nationally for certain advanced cancers, and for germline testing in patients with breast or ovarian cancer who meet the listed conditions.
Strongest for: when Medicare covers genetic testing for cancer
Read at CMSSource 02
Medicare.gov
How Medigap Works
Medicare.gov explains that Medigap supplements Original Medicare, that policies sold after 2005 do not include drug coverage, and how Medigap pays after Medicare.
Source framing
Medicare.gov says a Medigap policy is a supplement to Original Medicare, that Medigap sold after 2005 does not include drug coverage, and that Medigap is different from a Medicare Advantage Plan.
Strongest for: how Medigap supplements Original Medicare and pairs with Part D
Read at Medicare.govPlain-English forks
The forks people face
Most retirement questions hide a few smaller decisions. These are the practical pieces that change the plan.
Does the test meet the CMS conditions?
Why it matters: Coverage turns on the national coverage determination’s requirements.
In real life: This fork decides whether Medicare pays at all.
What to look at: What to look at: the CMS NGS coverage determination.
Is it germline or tumor testing?
Why it matters: CMS sets different conditions for germline breast or ovarian testing.
In real life: This fork changes which rule applies.
What to look at: What to look at: the germline section of the determination.
Do you have a Medigap policy?
Why it matters: A supplement helps with the cost after Medicare approves the test.
In real life: This fork changes what you owe.
What to look at: What to look at: your Medigap plan’s cost-sharing.
Common questions
Quick answers
Short, plain answers for the questions people usually have next. The source trail stays available below.
Does Medicare cover genetic testing for cancer?+
CMS says Next Generation Sequencing is covered nationally for certain advanced cancers when the listed conditions are met and the test is ordered by a treating physician and run in a certified lab.
Is testing covered after a breast cancer diagnosis?+
CMS says germline testing is covered for patients with breast or ovarian cancer who meet the listed conditions, including a clinical indication and risk factor for hereditary cancer.
Who has to order the test?+
CMS says the test must be ordered by a treating physician and performed in a certified laboratory.
Will my Medigap Plan N help with the cost?+
Medicare.gov says a Medigap policy pays its share after Medicare approves the service, so Plan N helps with the cost you owe once the test is covered.
What if the test does not meet the conditions?+
If the CMS conditions are not met, Medicare may not cover the test, and a supplement only pays after Medicare approves a service.
How this page is curated
This page uses the CMS national coverage determination for Next Generation Sequencing and Medicare.gov how-Medigap-works. It centers the CMS conditions because they decide coverage before any supplement applies.
Read the planner methodologyTrust anchor
Sources used on this page
Every source named above is listed here in one place.
CMS. National Coverage Determination: Next Generation Sequencing
https://www.cms.gov/medicare-coverage-database/view/ncd.aspx?NCDId=372Medicare.gov. How Medigap Works
https://www.medicare.gov/health-drug-plans/medigap/basics/how-medigap-works
Before you act on this
This plan is educational. It is not personalized financial, tax, or insurance advice. Projections illustrate the math, they do not predict the future. Talk to your own licensed financial professional before acting on any of it.