If you're here looking up Medicare customer care, you probably already know who they are. But it helps to get an idea of how big they are and what their support operation looks like if you are a customer. Medicare also goes by or is associated with the names Medicare.com, Medicare.gov. They are considered to be part of the following sectors and industries: Information Technology, Software & Services, Internet Software & Services, Internet. Medicare is associated with terms like government, internet, technology, b2c by their customers and industry analysts. Their competition, in the eyes of customers, are companies like There are no competitors to Medicare as it is a government agency and it has no competitors.. They employ 4,100 people according to customers in the know.