Contrary to mhr4 comments about QEEG, not all QEEG's are analyzed by the same computer systems. There are many different databases used to analyze QEEG wave forms. Some practitioners have the analytical databases in their office computer software. Some (most) are more focused on ADHD/ADD with a smaller sampling of PCS/MTBI.

A Ph.D and/or M.D. would be a good qualifier. A good doctor will not depend solely on the computer quantitative analysis for his diagnosis. There are specific dysfunctions that the computer analysis does not have the ability to report on. A practitioner with BCIA certification is good too.

Since QEEG equipment is very affordable (less than $2000), many less qualified practitioners will offer it. They often use it to justify and direct neurofeedback without fully understanding the patient's condition.