Help finding a Phoenix, Arizona Dr. | ADHD Information

My almost 5 year old son is on the path again and we're waiting to see a psychiatrist.  It's ridiculous how long you have to wait to see anyone that is worth their weight in gold.  We have an appt. in April with a good psych. and one in a couple of weeks for one I hope can help us temporarily but whom we didn't really do well with.  In the mean time, does anyone know of a good pediatric doctor that has knowledge of ADHD that might help us.  My son needs to be on meds again (we tried Adderall a year ago and it was terrible for him), the psych wanted to put him on Clonidin but wasn't sure about his blood pressure.  I need to get him to a pediatrician that can help us make the decision on his blood pressure.  Thanks.