The reality, and evidence, is that good work flow will make it faster for everyone. Having really well timed appointments so that there is a minimal of waiting both for the patients and doctors. Don't believe me?
Ron Pereira made a video of stuffing envelopes. It sounds unrelated but hear me out. There are two methodolgies. Stacked queue vs one-piece flow. The stacked queue is having everyone arrive at once and the one-piece flow is having well timed sequential appointments.
Check out the video here . Ron is definately not a video editor he taped the entire stuffing process so find you're fast foward button.
The one-piece flow wins by over 30%. By having well timed sequential appointments not only will you have better client satisfaction but you're office will run 30% faster.