As a former employee of Geisinger Danville, I know...

As a former employee of Geisinger Danville, I know the physicians are over booked. I worked in Pediatrics Allergy and Pulmonary departments. They schedule new patients for 1 hr visit which seems like a long time but the doctor is trying to get past medical history, become familiar w/ the patient and any issues they are having, check the patient over, diagnose, discuss and treat patient then the doctor has to update the chart w/ all of that information.
Returning patients get either a 15 or 20 min slot, depending on the doctor/specialty. This is not enough time to listen to the concerns of the patient/parent, check the patient over, diagnose, discuss and treat the patient as well as update the chart. My physicians were responsible for ROUNDS, where they leave their floor and go to the inpatient side of the hospital and check on all the patients that are admitted under their specialty as well as performing surgeries (bronchoscopy) which took a 2 hour slot.
Our ER doctors also have their patients in their specialty area and are assigned to ER duty. Dont think because you sat in the waiting room for several hours they are just sitting back there having coffee. I know my doctors worked 17 hour days and were back again 7 hours later. You maybe sitting in the waiting room and hear Life Flight landing on the roof. What you don't know is there was a terrible accident and the victim has traumatic injuries, needs to be stabilized, requires emergency surgery w/ blood transfusions. The physicians are doing their best to save the victim but perhaps they lose the battle and now have to speak to the victim's family, reach out to the chaplain to comfort the family, write a report of everything that had happened and of course update the chart.
Next time you are sitting in the ER because you nearly cut off your finger, or maybe you are in pain and running a fever - just remember, there is likely a more traumatic emergency and that is why you are waiting. Symptoms don't just all of a sudden occur and if they do they will triage you to be seen sooner. Respect these doctors and know they are exhausted but they are doing their very best to make sure everyone gets seen as soon as he possibly can.