According to the data on the link we have 2.5 per 1000, so 2500 per million or 134000 for the population. If the reasonable worst case scenario came to unfold then, oh, we'd only be 10 million short.
Plus you need to remember that at least half of those beds will be in use or completely inappropriate for respiratory illness, eg maternity beds, psych beds. Leaving us maybe 80,000 if we're generous.
We also only have about 4000 ITU beds. We could maybe free up half of these for coronavirus by cancelling non urgent ops, leaving us 2,000.
Using the percentage of 5% needing ITU and 20% needing hospital (altogether), our services would be overrun for ITU once 40,000 are infected, and for hospital in general once 400,000 are infected.
On a prediction of millions infected, it's not looking hopeful....