In the pop up window that opens when you click on the appointment it would be great if you could see a small thumbnail of the client.
If it slows the loading time it could be very low resolution even.
Its nice to greet someone by name instead of asking for the name everytime in a busy practice with multiple clients being seen at the same time.
Going to the files section and loading the photo is way to slow and too many clicks. I think it could also have some huge impacts on delivering the right treatment to the right client. Sometime the reception will erroneously check in the wrong person when they arrive especially new hires so the photo can really help prevent the wrong treatment going to the wrong person too. I dont think you can have too many saftey measures for that one.