Completing the billing certification coding medical course can take you anywhere from 3 months to one year. It all depends on how much time you have to devote to completing the courses. But it’s a short period of time when you can get your certificate and begin potentially making a starting salary of $31,000. That’s a good starting salary wouldn’t you say? There are plenty of online courses that you are able to take and complete it at your own pace – Drexel or Allied Medical School are two good schools.