I agree with the others. No way would I trust a pediatrician's diagnosis of these complex problems. They simply are not trained and educated to handle them. They are great in their field of study, which is to see if development is "normal" for the age, to deal with problems like colds and fevers, and to refer you to specialists when anything is more complicated than that.
I would wait to see the written report from the neuropsychologist. Traumatic Brain Injury (TBI) is a possibility. We are learning more and more about the effects of head injuries every day. Now they say that a child with a concussion must take it easy until all symptoms are gone or long term problems can occur. Two days after I read this Jess slipped on a puddle in the tiled bathroom and fell straight back onto her head. The doctor said to keep her still, check her every hour to see if her pupils reacted the same and if she was coherent, to put a cold pack on the lump and to give her ibuprofen as she normally takes it. IF any of those things changes to take her to ER but otherwise just make her rest until she wasn't dizzy or sick Occupational Therapist (OT) her tummy. Said the ER visit and MRI could be done right away, but all they would do if they saw something was tell us what she had already told us. It took 3 days before she felt completely better and I didn't let her do anything that she had to read for or walk around for.
Docs often give you one set of impressions/diagnosis's after they do the testing but before they get around to writing the report and a very different set in the report. I tend to wait for the report because those diagnosis's are made based on the test results. The first set of diagnosis's are given based on what they saw and how difficult child behaved during the testing. Important info, to be sure, but not info backed up by the actual tests because the doctor doesn't have those results to figure in. Some of the tests can be scored by the doctor but others have to be sent to the company that wrote the test. So by waiting you will be sure to have as much info as possible. I would write down what the neuropsychologist told you and when you meet to get the report be sure to ask him about how they fit with the test results - esp if any of the diagnosis's are not in the written report or are contradicted by the report.
My experience with psychiatrists is that they tend to give a diagnosis and then give medications. If the medications work then the diagnosis is right, if they don't then let's try another diagnosis. It drove me nuts until I realize that it is how medicine works. Go to the doctor with a sore throat and it is red then you have an infection. here are antibiotics. The antibiotics didn't work? Then you have GERD and sinus drainage. here is an acid blocker and some antihistamines. Only with a sore throat it doesn't change your basic behavior and psychiatric medications really can.
My other HUGE problem with psychiatrists is how they treat patients with bipolar, esp kids. There is a medication protocol that is published by the board of psychiatrists. It is the same for child and adult psychiatrists. Mood stabilizer (1 or 2) then atypical antipsychotics to control cycling. Once cycling is stablized, add a stimulant or anxiety medication or antidepressant - if symptoms are still there and warrant it. Only ONE medication change at a time and enough time between changes for medication to be fully effective, esp with regard to the mood stabilizers. They can take 6 WEEKS to be fully effective and shouldn't be changed much earlier than that, and certainly not at week 1 or 2. This protocol, or schedule or whatever you call it, has been established because it has been proven to be most effective. Often once moods are stable there isn't a need for stims or antidepressants. Stims and antidepressants have been PROVEN to cause increased cycling in people with bipolar and this is well documented and proven.
For some reason I do NOT understand, all but ONE of the psychiatrists I have ever known has wanted to give my child a bipolar diagnosis and put him on lexapro or zoloft or prozac. Not only is he NOT bipolar, if he was there was NO WAY that it was appropriate to start with those medications. Especially as he was already on concerta!! Every one of them was NOT happy when I pulled out the protocol (copied from either The Bipolar Child or from the medical board's website) and asked why we would start with an antidepressant when it was clearly NOT the recommended protocol. I heard all kinds of excuses - including that the protocol wasn't meant to be used on all bipolar patients, that it was out of date and thatit wouldn't work with Wiz because he was an Aspie and not bipolar. The doctor who said it wouldn't work on Wiz because he was an Aspie and not bipolar was REALLY unhappy because I latched onto that and wanted to know EXACTLY why he wanted to say my child was bipolar and needed an a/d. It was sort of fun, in a mean way, to watch him squirm and try to tap dance out of THAT corner. I accepted prescriptions from him until the appointment with a new psychiatrist came around, but only exactly what Wiz was on.
Anyway, docs are not often going to agree. Part of the problem is that if you have seen one psychiatrist and the treatment is working well but you have to see a new psychiatrist because insurance rules, moving, the old psychiatrist retired or whatever, the new psychiatrist will almost always want to do his own diagnosis. It almost always has to be different than the old psychiatrist's diagnosis and maybe it is to prove they are better. I don't really know but I HATE the way every psychiatrist I have ever met, except one of my psychiatrists, seems to be driven to re-invent the wheel for each patient even if the wheel was rolling along with no problems.
After a while I stopped caring if they called it asperger's, bipolar, GERD or pregnancy as long as the treatment worked. (You should have seen one doctor spit his coffee all over the chart when I told him that as long as the medication combo and therapy/interventions worked I didn't care if he said Wiz was pregnant. It was funny to see his reaction, lol!)