Wish I could recommend someone from you area….. However, I can offer my experience with Adderall dosage… I had a similar problem with Adderall… But the highest dosage was no longer working and my doctor wouldn’t go any higher.
Cue in to my own desperate search of a competent psychiatrist I found that educational psychiatrist (they also work with adults!) and/or neuropsychologist are much more effective and educated on appropriate medication.
I actually ended up switching from adderall but my doctor allows me to keep a prescription handy, which I take about a fourth or half in the latter afternoon times as a boost to the vyvanse I am taking. Not sure if this is going to change over time either, but honestly, it has made a difference.
Perhaps changing from adderall? Or even changing the type of doctor you are searching for so they could perhaps re-examine your current needs and the appropriate medications you could benefit from? I would definitely recommend looking for an educational or neuropsychologist/psychiatrist who works with adults and specializes in ADHD… Not just any run of the mill psych or doctor will work… At least not in my experience.