A good friend of mine works as a medical coding specialist, so she's pretty up to date on new developments in the medical field. From what she tells me, it's extremely important for medical administrative specialists to have good computer skills.
More and more doctor's offices are switching over to electronic medical records. That means that their staff members need to know how to use a computer, but also learn how to use specialized software.
So if you're looking into this as a job, make sure your training program includes classes about electronic medical records.