The Center for Medicare & Medicaid Services offers a great deal of information about Medicare coverage online at Medicare.gov. This includes general information about coverage provided under Medicare parts A and B and details about coverage for many diagnostic, screening and therapeutic services, such as cancer screenings and laboratory tests.
The information provided by the CMS applies to traditional Medicare, explains Medicare.gov. Medicare Advantage Plans, also known as Medicare part C, are operated by private insurers, according to eHealth.These plans provide all of the coverage offered by traditional Medicare, and many offer coverage for additional services and prescription drugs.
Coverage, monthly premiums and out-of-pocket costs for Medicare Advantage plans typically appear on the insurance provider's website, as shown on the Humana website.