ITA with checking with your insurance company rather than your EAP. You live near Denver, right? Have you checked the whole surrounding area? Even if you have to travel a bit to get to your appointment, it is better than nothing. Can you get on a waiting list somewhere that doesn't currently accept new patients? What about at a university?
I'm sorry you are having so much trouble. I know our country has a very broken system in general, but I guess it never occurred to me that something like ADHD would be hard to get treated. It is a fairly simple and treatable issue so it sucks that it is being so hard for you to address.
I wonder if you could have an initial appointment and pay out of pocket for that, and then have your meds monitored by a PCP? I'm not sure if that is something that doctors actually do so I could be completely off base, just brainstorming.