Glad your wife's treatment seemed to work out well.
I'm sure it was hard to watch your wife wait out the next Dr appointment. I have a friend and they decided to "pray the cancer away", and didn't seek medical treatment until there were skin lesions visible. The nurse at that appointment had to leave the room to vomit it was so bad. They went through surgery+chemo+rad and she's been in remission for a number of years now. So, even in fairly bad cases of waiting it out, there can still be good outcomes.
Definitely don't wait though. In my wife's case, they were confident that surgery would resolve it. But when they got in there, it was "acting weird"; it had grown much, much faster than it should have over that time. Initial diagnosis was stage 1, after surgery they called it stage 3+.
I had to do battle with the insurance company, because our company was changing insurance, with the new insurance becoming active 4 days before her scheduled surgery. We have a "benefits advisor" that always says "if you have any questions, ask us and we'll take care of you", but they've been fairly useless. In this case, they were telling us that we needed to wait until we had the new insurance cards, which would happen sometime within a few weeks after the new policy became active, then we'd have to submit for pre-approval, which could take another few weeks. And the specialized surgeon was scheduling like 6 weeks out...
We eventually found that we could personally guarantee payment, and the doctor was confident that insurance basically never denies coverage in situations like ours, so we went ahead with this course and got everything paid for. Which was good, because as I said, the cancer was "acting weird" and in the 2 weeks between initial location of the growth and the surgery that we were lucky enough to be able to get in due to someone else needing to reschedule, the growth doubled in size. Another 4-8 weeks very likely could have resulted in spread to the lymph nodes and much worse outcome.
Another moral of the story: Don't let the insurance company push you around. With cancer, time is always of the essence.