The qualifications they mention should, in a very general way, agree with those that you consider appropriate. Perspectives differ when it comes to qualifications. For example, the qualifications a layperson expects a doctor to possess incline to differ from what the doctors themselves consider proper qualifications. In this instance, since the doctor and the CA are on the same team, it is essential that they share the same standards of excellence. If possible, they should both hold a complementary opinion when it comes to a CA's qualifications.
Teamwork is paramount.
It is crucial that the CA you hire be able to get along with the other members of your staff. A cooperative effort insures the smooth running of any office. Be sure to require written recommendations and references confirming the applicant's ability to work well with others. Some measure it in objective terms, e.g., financial gain, power, status, or possessions. By knowing how an individual defines success, you will be better able to predict their future behavior once they are on staff.