Reduced Costs: One of the significant advantages of outsourcing your billing needs is the reduction in costs associated with the billing process. In comparison to the other two categories of medical billing companies, third-party medical billing companies are the most prevalent because they provide the most advantages. By working for a top medical billing company, not only will you have job security, but you'll also be able to make a positive impact in the healthcare industry. This is where medical billing companies come in.