As other have said, that "salary" figure is only if you hit your production numbers, and that depends on many things. You may not get that many RVUs and you'll make less. Or, you will make that many but you'll feel like its too high of a requirement. There may be a clause that you get penalized if you won't hit your RVU production quota. Look at the fine print. Don't accept any penalties for not hitting your RVU production.
I'm not sure where people are getting 184k from. Remember at that income level, 32% is the tax rate. Once you go on production after 15 months, best case scenario you'll be taking home around 160,000 a year which is around 13,000/month, which sounds like a lot but not after you start paying a mortgage and student loans.
I wouldn't sign any contract with a non-compete clause in it, on principle. It's a completely screwed up practice that institutions use to try and maintain their monopoly in a geographic area.
It's a pretty standard contract and you aren't going to go hungry. It's probably going to be slightly below average pay once you go on production, but there are many things that can make that very acceptable. I'd happily make 160k/year if it means I have time to see my patients and have a low stress work environment, without anybody bugging me to see more patients than I was comfortable, etc. It's not all about money and whether you stay in this job, money may have little to do with it, ultimately.