AdvaMed, or the Advanced Medical Technology Association, is an American medical device trade association, based in Washington, D.C. It is the largest medical device association in the world with U.S. and international members who are medical technology companies (medical devices, diagnostic products, and health information systems) that collectively represents 80% of U.S. medical technology firms in the United States, that produce close to 90% of annual health care technology purchases in the United States and more than 40% globally.