Medicare is health insurance for people 65 or older. You may be eligible to get Medicare earlier if you have a disability, End-Stage Renal Disease (ESRD), or ALS (also called Lou Gehrig’s disease)., A federal government website managed and paid for by the U.S. Centers for Medicare and Medicaid Services. 7500 Security Boulevard, Baltimore, MD 21244, For questions about billing, your claims, medical records, or expenses, log into your secure Medicare account, or call us at 1-800-MEDICARE., The "Medicare & You" handbook is your official guide to Medicare. We mail an updated printed handbook to all Medicare households in late September. You can sign up for the the electronic version of the handbook and have access to the most up-to-date Medicare information faster., Get Medicare forms for different situations, like filing a claim or appealing a coverage decision., Medicare health plans are generally offered by private companies that contract with Medicare, and provide Part A and Part B benefits to people with Medicare. Includes Medicare Advantage Plans, Medicare Cost Plans, Demonstrations/Pilots, and Program of All-inclusive Care for the Elderly (PACE)..