You are covered everywhere in the United States if you have original Medicare (Medicare Part A and Part B). You must, however, utilize Medicare-accepting hospitals and physicians. Every state in the United States is included in the term "everywhere in the United States." It is important to understand that not every hospital or physician will accept your insurance. Some hospitals and doctors may charge extra fees for their services. Others may deny coverage entirely. In most cases, yes, all 50 states accept Medicare. There are some limitations to this coverage depending on what plan you are enrolled in and where you go for medical care. For example, if you need an operation at a hospital that does not participate in Medicare, you will not be able to cover it. However, there are many hospitals that do accept Medicare. Before you travel to another state for health reasons, make sure you find out whether these hospitals will accept your insurance. The only way to know for certain is by calling each hospital directly. Some may charge extra fees if you don't have enough money or if you want to avoid the hassle of dealing with their financial arrangements. Other options include finding a hospital that is part of a larger network that may provide discounted rates for its patients or one that has other programs to help those without insurance. Overall, Medicare coverage is available in every state in the country.