Medicare 2026

Genetic Testing Scams: Why a "Free" Cheek Swab Can Leave You With the Bill

A friendly voice on the phone offers a "free" DNA screening that can check your risk for cancer, heart disease, or Alzheimer's. A booth at a county fair offers the same thing in exchange for a quick cheek swab. A kit shows up in the mail that you don't remember ordering. In each case, someone asks for your Medicare Number "just for our records." That small ask is the point of the whole pitch — and it can cost you.

Genetic testing fraud has been one of the most common scams aimed at people with Medicare for years, and federal enforcement actions in 2026 show it is still very much alive. Here's how it works, how to spot it, and what to do if you've already handed over your information.

How the scam works

In a fraud alert last updated September 27, 2019 and still posted today, the HHS Office of Inspector General (OIG) describes genetic testing fraud this way: Medicare is billed for a test that was not medically necessary, or that was not ordered by the beneficiary's own treating physician.

The pitch reaches people in all the everyday ways you'd expect:

• Telemarketing calls, sometimes claiming to be from "Medicare"
• Booths at health fairs and community events
• Door-to-door visits
• Mailed test kits that arrive without any doctor's involvement

The script usually promises that the screening is free, that Medicare "covers everything," and that the caller just needs to "verify" your Medicare Number. Once they have it, they can submit claims to Medicare for expensive genetic panels — whether you ever swab your cheek or not.

If Medicare decides the test wasn't medically necessary and denies the claim, the lab can turn around and bill you. These panels often run into the thousands of dollars.

This isn't a small problem

Federal enforcement cases show the scale.

A CMS fraud spotlight reports that in May 2026, the Department of Justice announced the sentencing of two clinical laboratory operators behind a nationwide genetic testing scheme. Their operation submitted more than $522 million in false claims to Medicare, Medicaid, and private insurers using DNA samples and test orders for people who had never been evaluated or treated by the "ordering" providers. Before investigators caught it, the labs had collected roughly $84 million. Beneficiaries had been recruited through telemarketing, door-to-door solicitation, health fairs, and similar outreach — the same channels OIG has warned about for years.

On August 28, 2026, CMS said its enforcement actions had stopped more than $1.6 billion in potentially improper Medicare laboratory payments, including $732 million in savings from revoking 157 lab providers. The agency specifically called out billing for medically unnecessary tests, including genetic tests, for people with no real relationship to the ordering provider.

The takeaway: these are organized operations, and your Medicare Number is the raw material they need.

Why it can land on your bill

People sometimes assume that if Medicare denies a shady claim, that's the end of it — the scammer loses, and no one else gets hurt. That's not always true.

If you agreed to the test, signed a form, or let a kit be sent to you, the lab may argue you accepted responsibility for charges Medicare doesn't cover. OIG warns that if Medicare denies the claim, the beneficiary could be on the hook for the entire cost, which can be thousands of dollars. Even if you fight the bill successfully, you can spend months untangling it — and your Medicare Number may be used again for other fraudulent claims.

How to protect yourself

The guidance from OIG and Medicare's own fraud booklet is simple and consistent:

• Let your own doctor decide. A physician who knows you and your medical history should assess whether genetic testing makes sense and formally order it. That's the only situation where Medicare is likely to cover the test.
• Refuse or return unordered kits. If a cheek-swab kit shows up in the mail and your doctor didn't order it, don't use it. Refuse delivery or return it unopened.
• Don't share your Medicare Number with strangers. Treat it like a credit card number. Medicare will not call, email, or knock on your door offering free genetic screenings.
• Be suspicious of "free." Medicare's fraud booklet says to be wary of anyone who claims a test or service is free and just needs your Medicare Number "for their records."
• Read your statements. Check your Medicare Summary Notice (Original Medicare) or your plan's Explanation of Benefits (Medicare Advantage or Part D) for lab charges you don't recognize.

If you think you've been targeted — or already gave up your Medicare Number — contact 1‑800‑MEDICARE and the Senior Medicare Patrol (SMP), which helps people with Medicare spot and report fraud.

A quick note on what's changing for 2027

Scammers often use "new Medicare benefits" as a hook, so it helps to know the real calendar. Medicare's Annual Enrollment Period for 2027 coverage runs October 15 – December 7, 2026, with choices taking effect January 1, 2027. In 2027, the Part D out-of-pocket cap is $2,400 (up from $2,100 in 2026), the most any Part D plan can charge as a deductible is $700, and the Part D base beneficiary premium used in the late-enrollment penalty calculation is $41.33. The Social Security Administration announced a 3.6% cost-of-living adjustment for benefits payable beginning January 2027.

The 2027 Part B standard premium and deductible, and the 2027 IRMAA income brackets, had not been announced at the time of writing — CMS typically releases them in the fall. Anyone who "already knows" those numbers and is pressuring you to act is not a reliable source.

A few other enrollment points worth knowing: people with Medicaid or Extra Help have a monthly Special Enrollment Period to move to Original Medicare with a stand-alone Part D plan (or to switch stand-alone plans), and full-benefit dual-eligible individuals can join an integrated D-SNP in any month.

Original Medicare vs. Medicare Advantage — briefly

Fraud risk doesn't really depend on whether you have Original Medicare (often paired with a Medigap policy and a stand-alone Part D plan) or a Medicare Advantage plan. Each path has trade-offs: Original Medicare offers broad provider access and predictable federal rules, while Medicare Advantage bundles coverage and may include extras but uses networks and plan-specific rules. Neither is "better" — the right fit depends on your doctors, your health, your budget, and your preferences.

Where to get help you can trust

For official, personalized information, go to Medicare.gov or call 1‑800‑MEDICARE (1‑800‑633‑4227), 24 hours a day, 7 days a week. For suspected fraud, the Senior Medicare Patrol is a free resource that can help you report it and sort out next steps.

The rule of thumb is short enough to remember at the door, on the phone, or at a booth: if a genetic test is "free" and all they want is your Medicare Number, it isn't free — and it isn't for you.