I searched ResearchGate for people/research on mycotoxins and found a few references. There is no charge for this research portal, but one needs to sign up. One paper was a generalized one on mycotoxins, a lot of papers on their presence in food, and others. Because the papers are posted by the scientists, you can also ask them questions. There doesn't seem to be a lot of research on mycotoxins in people and it is complex, inhaling the mold can impact the pulmonary, immune, and other symptoms. Hopefully others can give you options for doctors that specialize in mold toxicity.
https://www.researchgate.net/publication/225879541_The_Challenge_of_Mycotoxins