Maybe talk to him about your expectations and see if you can work out something satisfactory. What kind of emergency was it? Did you make it through that okay? What other emergency resources are available to you? Those are all things to consider too. What I would try to work out with your doc is an understanding of what types of emergencies he can be available for, how fast he is able to respond to those, as well as when to call someone else (crisis line, ER, etc.).