My Wife Suffers From Heavy Metal Poisoning: Lead, Mercury, Copper,

My wife suffers from heavy metal poisoning: lead, mercury, copper, thalium, and cadmium primarily. She has been diagnosed by IV chelation with EDTA by an alternative doctor. Due to complications, she was unable to finish the process although she had improved test results after 6 months. She is currently having all mercury fillings removed from her teeth, and is considering resuming treatment. However, we do not want to continue with the original Dr. Can she get treated/chelated by a toxicologist for this? Is this covered by Medicare?