That's the whole point: the US as a whole also has a physician shortage now. Imagine how wonderful that will be when you add millions of new patients without doing anything to increase the supply of doctors. Yep, you guessed it, you get extremely long wait times, more people going to urgent care and the ER for things that don't currently require urgent or ER care because it's the only way they'll be able to see a doctor. In other words, you get exactly what we've seen in MA.
It will also be a lot more expensive, and the care will be of a lower standard because the doctors will be overworked. Brilliant, absolutely brilliant.
Thanks once again dims for your dose of stupidity.