It bills itself as "not concierge" medicine, but through a previous employer I had access to Summus, and found them extremely helpful in navigating the healthcare system.

The turnaround from me being told by a med school friend that I should "go get something checked out" to having an appointment with a dermatologist was ~1.5 days, and the total effort I spent was a few minutes filling out a form and responding to someone calling me.