Something I am seeing built more of around here is the stand-alone ER. They handle most things a hospital ER handles the biggest exception is you can't stay overnight. They are the "triage" for a hospital. They stabilize and treat patients from car accidents, gunshot victims, work, and home accidents. If the patient is going to need follow on care, once he is stabilized, he is sent to a hospital.
We already have the clinics, we would just add trauma and make it so you would choose between general or trauma. It could be used to generate a patient transfer.