when you look for a plan on the exchange, customers have tools to help them see if the plan works for them....some plans don't cover out of network doctors, some cover only 50% of the cost or 60% of the cost if you see an out of network doctor, some plans may not cover the medications you use, some plans may not have the doctors you use in their network....
Thus the exchange....it gives you the tools to check and see if your medications are covered under the plan, the tools to see if the kind of doctors you anticipate using are in the network...
Health Insurance is much more complicated than one would think. I spent hours sometimes with elderly couples but not 65 yet, trying to choose a plan that was best for them....
It's so much easier to just pick a plan from your work benefit offered....by just trusting your HR department to have picked the most universal plan coverage....either way, you just have the choice of what they offer you if you want the benefit.