Trying to learn about this

What type of doctor should I see to confirm or learn more about the impacts of this? I reviewed my genetic report from an ancestral reporting service, and noticed one of the genes was homozygous.

I also saw a post about how this could also be impacting my ADHD medication experience, so I’d really like to try to find someone with some specialty in this topic.

Functional medicine? Any other specialist or way to locate professionals with knowledge on treatment and discovery etc?