Diabetes Screening After 50: What the Tests Show and What Medicare Covers
Type 2 diabetes can develop slowly and quietly. The CDC says it may go unnoticed for years, and sometimes there are no symptoms at all. That is why a simple blood test is the best way to find out. Here is how screening works and what Medicare covers, as of November 2026.
Why Screening Matters
According to the CDC, more than 40 million Americans have diabetes, about 1 in 8, and 90% to 95% of them have type 2. The CDC also says over 40% of U.S. adults have prediabetes, which means blood sugar is higher than normal but not yet in the diabetes range. Finding it early gives you time to act.
Who May Be at Higher Risk
The CDC lists these risk factors for type 2 diabetes:
- Having prediabetes or overweight
- Being 45 or older
- Having a parent or sibling with type 2 diabetes
- Being active fewer than 3 times a week
- Having non-alcoholic fatty liver disease
- Being African American, Hispanic or Latino, American Indian, or Alaska Native (some Pacific Islander and Asian American people are also at higher risk)
The Blood Tests
The CDC describes the common tests. The A1C test shows your average blood sugar over the past 2 to 3 months:
- Normal: below 5.7%
- Prediabetes: 5.7% to 6.4%
- Diabetes: 6.5% or above
A fasting blood sugar test, taken after an overnight fast, counts as normal at 99 mg/dL or below, prediabetes at 100 to 125, and diabetes at 126 or above. Only your doctor can tell you what your results mean. If you get tested at a health fair or pharmacy, the CDC suggests following up with a clinic or doctor.
What Medicare Covers
Medicare Part B covers diabetes screenings as a preventive service if your provider decides you are at risk. Medicare.gov says you need at least one of these: high blood pressure, past abnormal cholesterol or triglyceride levels, obesity, or a history of high blood sugar. Or you need two or more of these: age 65 or older, overweight, a parent or sibling with diabetes, or a history of gestational diabetes or delivering a baby over 9 pounds.
Medicare covers up to 2 screenings per year, counted from your most recent one. You pay nothing if your provider accepts assignment. Costs can differ with other insurance or where you are tested, so ask before the test.
Steps to Take
- Ask your doctor at your next visit whether you should be screened and how often.
- Bring a list of any family history of diabetes.
- Ask what your results mean and what to do next.
- If you have prediabetes, ask about a CDC-recognized National Diabetes Prevention Program near you. The CDC says the program can lower the risk of type 2 diabetes by 58%, or 71% for people over 60.
The CDC says lifestyle changes can prevent or delay type 2 diabetes. These include a healthy diet and regular activity, such as about 150 minutes a week of brisk walking. Losing 5% to 7% of body weight helps people who are overweight. Check with your doctor before starting a new exercise routine, and start slowly, wear sturdy shoes, and stop if you feel dizzy or unwell.
This article is general information, not medical advice. Talk to your doctor or pharmacist about your own health.
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- Medicare’s Free Wellness Visits: What They Include and How to Prepare
- Walking for Health After 50: A Practical Guide
- Healthy Eating After 50: Simple Ways to Get More Protein, Fiber and Key Nutrients
