A Billing Company Should Have These Features. Due to the reduction in time spent on billing, they will have more time to spend on patient care. Focus on Patient Care. You can find all you need to know in our thorough guide, from a list of the top medical billing businesses to advice on how to launch your own medical billing business. Although doctors are in the business of treating patients, managing the financial aspects of a practice can be challenging. When it comes to medical billing, small healthcare facilities like doctors' offices, dental practices, and veterinary hospitals face unique difficulties.