"Decrease in Price causes an increase in quantity demand."[1]
Apparently you didn't learn your material very will.
It says that;
when the quantity demanded increases, then the demand price goes DOWN.
Here is the supply and demand curves for you to look at
Notice it shows the quantity demanded increasing and the price going down.
People will purchase more of it at a lower price and if the price is higher, then they will purchase less of it.
Alternatively, when the demand shifts to the left, to higher quantity, then the equilibrium price follows the supply curve, such that the quantity supplied increases. Then, all other things being equal, the supply price increases.
And, I see that you haven't read the ACA bill, either.
So you might consider taking a college course in both micro and macro economics.
The supply and demand curves for a market do not say that when demanded quantity goes up that price is guaranteed to go up. It just says that, ceterus paribus, all other things being equal, then it will. And, it is on a particular market structure.
What can and does usually happen is that both the supply and demand curves shift at the same time. This is why following the market equilibrium prices doesn't tell us anything about the supply and demand functions. (unfortunately).
The reason for this is that there are four degrees of freedom for the supply and demand curves. There is the demand shift, the quantity demanded, the supply shift and the quantity supplied. Because of this, without some further constraints, there is not telling what will occur when only one is specified as changing.
[1]
http://windward.hawaii.edu/facstaff/briggs-p/introduction and syllabus/supplydemandworksheet.pdf