Medicare and preventive services — the free screenings worth knowing about

Reviewed by the How To Help Your Elders editorial team | Updated March 2026

Medicare covers annual wellness visits, cancer screenings, cardiovascular testing, cognitive assessments, depression screening, and vaccines at zero cost to your parent. No deductible, no copay. These services catch conditions early when they're treatable, and they are already paid for through your parent's Medicare enrollment.

These Screenings Cost Nothing, and Most People Don't Use Them

Your mother mentions in passing that her knees hurt. Your father says he's "fine, just tired." You nod, move on, because there's always something. The bills are piling up, your work is demanding, and the idea of adding another doctor's appointment to the mix feels like one more impossible thing. So preventive care slides down the priority list, especially when it comes with a copay you're already worried about affording.

Here's what almost nobody knows: Medicare covers a whole range of preventive services at zero cost. Not 90 percent. Not 85 percent. Zero. No deductible, no copay, nothing. Your parent's annual wellness visit is free. Cancer screenings are free. Cognitive testing is free. Vaccines are free.

The problem isn't access. The problem is that nobody says this out loud in a way that sticks. Your parent doesn't bring it up because they assume preventive care is something they can't afford. You don't prioritize it because you don't realize what Medicare actually covers. According to CMS data, only about half of Medicare beneficiaries use their free annual wellness visit each year, despite it being fully covered since 2011. Early detection gets pushed aside for the crisis that could have been prevented.

This matters more than it seems. I know this from watching families manage health issues that arrived without warning, that arrived with subtle warning signs that went unnoticed.

What Preventive Services Medicare Covers at 100%

When your parent turns 65 and enrolls in Medicare, one of the most underused benefits is the annual wellness visit. This is not the same as a regular doctor's visit. This visit is specifically designed for prevention and early detection, and Medicare pays the full cost if you see a participating doctor. The visit includes a comprehensive health assessment, a review of medical history, and discussion of goals. The doctor checks blood pressure, takes a full medication list, screens for depression, and assesses cognitive function. It typically takes 30 to 45 minutes. Your parent should bring a list of current medications and any supplements they're taking.

During this wellness visit, the doctor can order preventive screenings based on your parent's age, health status, and risk factors. These screenings are covered at 100% when ordered during the wellness visit or when medically appropriate. For someone over 65, this might mean baseline heart and lung screenings, checking kidney function, or measuring bone density. The doctor decides what makes sense based on your parent's individual situation.

Immunizations are another category covered completely. Your parent needs a flu vaccine every year. Shingrix, the shingles vaccine, is remarkably effective at preventing shingles and the severe pain that can follow. This vaccine requires two doses given two to six months apart, and Medicare covers both completely. According to the CDC, shingles affects about one in three Americans during their lifetime, and the risk increases significantly after age 60. If your parent is 50 or older, they're eligible.

Pneumonia vaccines are covered, and the current recommendations have changed in recent years. Your parent might think they had their pneumococcal vaccine years ago and don't need another. The CDC updated pneumococcal vaccine recommendations for older adults, and if your parent hasn't had the newer vaccines, they need them. Your parent's doctor will know what they've had and what they still need.

RSV (respiratory syncytial virus) vaccines became available for older adults starting in 2023, and Medicare covers them completely. If your parent is over 60, they can get this vaccine once. RSV can cause severe respiratory illness in older adults, and this protection didn't exist a few years ago.

Cancer Screenings: What Your Parent Should Know About

Colorectal cancer screening is covered completely. Your parent has options: a colonoscopy, flexible sigmoidoscopy, or a fecal immunochemical test. If your parent is squeamish about colonoscopy, they should mention that to their doctor because other options exist. The screening is covered. The sedation for the procedure is covered. The removal of polyps if they're found is covered. According to the American Cancer Society, colorectal cancer is the third most common cancer in both men and women, and screening reduces death rates significantly because it catches the disease early or prevents it entirely by removing precancerous polyps.

Mammograms are covered every one to two years for women 40 and older. 3D mammography, which is slightly better at detecting early cancers, is also covered. If your mother has had previous mammograms, her doctor will know whether more frequent screening makes sense.

Prostate cancer screening is more complicated, and your father should talk to his doctor about whether screening makes sense for him. Medicare covers the PSA test and digital rectal exam, but the medical community has ongoing discussion about screening benefits and risks. The important part is that if your father wants the screening, it's covered. He shouldn't avoid getting it because he thinks he can't afford it.

Lung cancer screening is covered for people 50 to 80 who have a significant smoking history. If your parent was a smoker or is a current smoker, this screening could catch cancer at an early, treatable stage. Medicare covers the low-dose CT scan used for screening. If your parent smoked for 20 pack-years or more (which is the number of packs per day multiplied by the years they smoked), they qualify. The U.S. Preventive Services Task Force gave lung cancer screening a grade B recommendation, which is what triggers Medicare's full coverage.

Skin cancer screening is available during the annual wellness visit. Your parent's doctor can check their skin for suspicious spots, which is good because skin cancer is common and very treatable when caught early. If the doctor finds something that needs a biopsy, that's covered too.

Cardiovascular Screening and Testing

Heart disease is the leading cause of death in the United States, according to the CDC, and preventive screening can make a real difference. During the annual wellness visit, your parent's blood pressure is checked. Elevated blood pressure is a risk factor for heart disease and stroke, and catching it early matters. If the result is high, that's valuable information that leads to treatment.

Cholesterol screening is covered for all Medicare beneficiaries. This tells you whether your parent needs medication to prevent heart disease. High cholesterol often has no symptoms, so people don't realize they have it until the blood test shows the problem. Your parent should have their cholesterol checked regularly, at least every five years, and more often if they have risk factors.

If your parent has symptoms that suggest heart disease (chest pain, shortness of breath during activity, unusual fatigue), the doctor can order an EKG or stress test, and these are covered when medically necessary. If the doctor is concerned about heart disease based on screening results, they might discuss preventive medications. Aspirin therapy and statins are common examples. These medications help prevent heart attacks and strokes in people at risk. The medications themselves are usually inexpensive, but they're only helpful if your parent actually takes them regularly.

Cognitive and Mental Health Screenings

One screening that doesn't get talked about enough is cognitive screening. During the annual wellness visit, the doctor assesses your parent's thinking and memory. If the doctor sees any signs of decline, they can order more formal cognitive testing. This is different from a diagnosis of dementia. This is early detection of changes in thinking that warrant investigation.

Why this matters: catching cognitive decline early, before it becomes severe, gives your parent and your family time to plan. You can have conversations about what your parent wants to happen if decline continues. You can discuss finances, legal documents, and care preferences while your parent can still participate fully in those discussions. According to the Alzheimer's Association, early detection of cognitive changes allows for medical interventions that can slow progression in some cases and gives families months or years of additional planning time.

Depression screening also happens during the wellness visit. Depression is common in older adults, it's often undiagnosed, and it's very treatable. If your parent has been sad, withdrawn, or less interested in things they used to enjoy, mention this to their doctor. Depression in older adults sometimes looks like physical symptoms (fatigue, pain, sleep problems) rather than obvious sadness. The screening is free, and if depression is identified, treatment is covered under Part B.

Vaccines Your Parent Needs

The annual flu vaccine is the baseline. Every fall, your parent needs this vaccine. It takes five minutes, it's free, and it significantly reduces the risk of getting the flu and serious complications. Severe flu in older adults can lead to pneumonia and hospitalization. The CDC recommends that all adults 65 and older receive either a high-dose or adjuvanted flu vaccine, which produces a stronger immune response than the standard version.

Shingrix is the modern shingles vaccine, and if your parent is over 50 and hasn't received it, they should. Shingles is caused by reactivation of the chickenpox virus later in life. The rash is incredibly painful, and the pain can persist for months or even years after the rash heals. It requires two doses, but both are covered completely.

Pneumonia vaccines have changed recently. The current recommendations are complex, but the bottom line is that most people over 65 need at least one pneumococcal vaccine if they haven't had the newer versions. Pneumonia can be serious in older adults, and the vaccine is covered. Your parent's doctor will know what they've had and what they still need.

The RSV vaccine is relatively new, and it's something your parent should know about. If they're over 60, they can get this vaccine once. It helps prevent respiratory syncytial virus, which causes severe respiratory illness in older people.

Using These Benefits Before It's Too Late

The key to actually getting these preventive services is treating the annual wellness visit as non-negotiable. Make the appointment in early fall, in plenty of time to get the flu vaccine and any other preventive care before winter. Make sure your parent actually goes. If your parent is reluctant to go to the doctor for "nothing wrong," remind them that early detection of something small is better than treatment of something big. And the visit is free.

When your parent goes to the wellness visit, they should mention any concerns, even if they seem minor. That pain in the knee. The occasional shortness of breath. Memory lapses. The doctor needs complete information to order appropriate screening. Your parent should bring a list of medications, even over-the-counter ones and supplements. And if the doctor recommends screening, your parent should do it.

If your parent doesn't have a primary care doctor, help them find one. The preventive care benefit is easiest to access through an ongoing relationship with a doctor who knows your parent's history. If your parent has been avoiding the doctor because they think they can't afford care, the preventive benefit changes the equation.

Early detection changes outcomes. A cancer found early is more treatable. A heart problem identified before a heart attack is preventable. A stroke risk factor found through blood pressure screening can be managed before a stroke happens. A cognitive change noticed early gives your parent time to plan. These aren't dramatic interventions. They're quiet prevention. But quiet prevention is how your parent gets more years with you, more years of independence, more years where they're still themselves. That's worth making the appointment for.

Frequently Asked Questions

Is the annual wellness visit the same as a regular checkup?
No. The annual wellness visit is a separate benefit focused specifically on prevention and screening. It includes a health risk assessment, review of medications, cognitive screening, and depression screening. If your parent raises a new health concern during the wellness visit that requires diagnosis or treatment, the doctor may bill a separate office visit for that portion, which could have a copay. The wellness visit itself is free.

Which vaccines does Medicare cover at no cost?
Medicare covers flu vaccines (annually), Shingrix (shingles, two doses), pneumococcal vaccines, RSV vaccine, Tdap (tetanus, diphtheria, pertussis), and hepatitis B vaccines at zero cost. COVID-19 vaccines are also covered. All of these are covered under Part B or Part D with no copay when administered by a participating provider.

What if my parent's doctor charges for a "free" screening?
This can happen if the doctor is not a participating Medicare provider, if the visit is coded as a diagnostic visit rather than a preventive one, or if the screening leads to a procedure that has separate billing. Before the appointment, confirm that the doctor accepts Medicare assignment. If your parent receives an unexpected bill for a preventive service, call the doctor's billing office and ask them to verify the billing code.

How often can my parent get cancer screenings?
It varies by screening type. Mammograms are covered every 12 months. Colorectal screening (colonoscopy) is covered every 10 years for average-risk patients, more frequently for high-risk. PSA testing for prostate cancer is covered annually. Lung cancer screening is covered annually for eligible patients. Your parent's doctor will recommend the appropriate schedule based on risk factors and prior results.

Can my parent get these screenings if they have a Medicare Advantage plan?
Yes. Medicare Advantage plans are required to cover all preventive services that Original Medicare covers at no cost. Some Advantage plans offer additional preventive benefits beyond what Original Medicare provides, such as vision or dental screenings.