I’m not sure that a facility that primarily focuses on substance abuse treatment is the best ADHD facility, unless you are trying to get clean of something too.
Also, I suspect that the places that are regularly testing their patients, are more concerned that the patients are selling their amphetamine based prescriptions or are amphetamine addicts than the well-being of the patients.
I created my lemmy.world account first, but I like the site name for sh.itjust.works so I have one there too.