Medicare
The "Official U.S. Government Site for Medicare" is www.medicare.gov. Among the useful resources you will find there is Medicare's 2023 Costs at a Glance.
The most recent 2023 reminder form Medicare shows that Medicare Part B covers diabetes screenings here Medicare Covered diabetes Screening
and also the Medicare Diabetes Prevention program which can help prevent Type 2 diabetes, at no cost to you - an important benefit to seniors - which can be accessed at this link Medicare covered Diabetes Prevention Program