Can you recommend a pediatrician who will listen to me and is "open minded." My pediatrician does not believe diet changes can help. I am willing to go anywhere and do anything for my child.

Although there are now several doctors who are enthusiastically learning about the biological treatments for autism, they are still few and far between. You may need to find a local doctor who is supportive, and educate him or her yourself.
To see a list of DAN! (Defeat Autism Now!) Doctors, or to order the Autism Research Institute's Treatment Guide, The "DAN Protocol," visit www.autism.com/ari
There are also medical links at www.GF/CFdiet.com, www.goodnewsdr.org, and www.autismndi.com/links
For an incomplete list of physicians reported to be knowledgeable about the "DAN Protocol," visit www.autismndi.com/doctors.htm.