No, I think it'll remain about the same, but everyone will have access.
Why do you think the quality and service would decline?
Wave the magic wand and give health care insurance to every American. Will there be one more doctor or one more appointment open on the books? We will have the same system we have now only more people standing in a already long line as it is.
Will doctors work longer hours? Will they work for less money? There is a nursing shortage and bed shortage in our hospitals. There will not be any more people receiving health care on any given day. With all these people ready to use their new health insurance coverage, they will swamp an already over taxed system.
Have you tried to get an appointment at a doctor or a dentists office lately?
Lets examine another problem. People on medicare that have no supplemental additional coverage have a hard time finding doctors who accept new patients.
Why is this? I will tell you why. Say you need a CAT scan. Medicare will only pay a set amount for the scan. Lets say I have Blue Cross insurance. I will bet you any amount of money I can be new to the area and get a doctor to see me as a first time patient where a person living in the area for 30 years who's doctor has just retired and only has medicare will not be seen as a new patient. Why? Because Blue Cross will pay the bill no questions asked where medicare will require forms and negotiate a lower rate.
This is a no brainer. If you own a diagnostic machine and can only run a set amount of scans every day, you make way more money running scans for people who have a higher caliber insurance. You get reimbursed quicker with less hassles.
National health care insurance will attempt to lower the payment amount by negotiating a lower fee. This is not as profitable to private medical facilities. Therefore the lower caliber insurance holder will either be turned away or scheduled months from now or referred to a facility that is not running to capacity.
I know some folks who have no insurance believe that some kind of insurance is better than no insurance and they will be right. What kind of service they receive will be substandard to what they believe they will have. They will have to wait for medical services unless their condition is life threatening.
It is simple math. The same amount of providers and a whole lot more patients equals a longer wait with less services.