Open early and stay open later Dr Offices

Sometimes it just seems too obvious to ever work.

My wife a few years ago went to work for a family physicians office that wasn’t affiliated with a hospital. In the medical world that makes it much more difficult to make it. They were in business for about two years. Early on, and revisited again near the end, they debated on opening early and closing later. So their office hours would be something like 7:00 to 11:00 and 3:00 to 6:00. This way they get the people that don’t want to take time of the work schedule to come in. It also differentiates their office from others. At the time we didn’t have kids so this working arrangement would have been fine for my wife. The Doctor’s who owned the practice decided against the idea and I’m still bewildered as to why? I would try going down in flames; exhausting all options. Has anyone else seen this idea work? And if so, where? Under what circumstances?