According to the most recent DSM guide used to assist physicians with diagnosis, ADD is no longer the correct term for the disorder; it is now considered to be a subtype of ADHD. So what the OP addresses is in fact ADHD.
All afflicted individuals share a core set of just a few of the known symptoms. The presence of the other ancillary symptoms vary in combination and intensity per individual.
It is my understanding that the current medical school curriculum contains almost no training on ADHD. Therefore, it is extremely difficult to find a medical professional possessing the requisite competence for effectively diagnosing/treating it.
All that said, a person's best bet for finding a good doctor is to find a local ADHD support group and ask around. The goal is to get advice from someone who has already gone through the long & difficult process of finding a doctor they can trust. Doing this will likely save the interested party years of suffering with the symptoms as finding the correct medication and dosage is a long process of trial and error.
Do NOT dismiss the importance of medication as part of the necessary treatment plan. Medication does work, but also needs to be supplemented with therapy/coaching if at all possible.
If you're a parent, Don't deny your child the benefits of medication simply b/c you're unsure. They'll grow up to hate you for it; I know I did.