It seems hypocritical for a political party to constantly claim to be against 'big money' and 'money in politics', and yet allow Bloomberg to buy his way into the campaign with a donation to the DNC.
To answer your question:
The cost of insurance will increase to cover the costs of those that cannot afford it.
Many people will likely have to abandon insurance plans that they are happy with.
Taxes will be increased.
Number one, that won't happen- because Boomberg isn't going to win- unless he can buy the election and then not get caught.
The other thing is that every American (and anyone else here, for that matter) has access to healthcare.
It is illegal to deny care of anyone at a healthcare facility, and has been for a long time.