I think this is the wrong way to analyze the question. The question is whether you think people should have health care when they need it. If you don’t, then let the free market handle it. If you do, then you have to look at whether free markets can accomplish that goal.
The food industry is highly regulated and subsidized. This is your free market example?
Board certifications are designed to address an information assymetry problem. It is difficult for most people to determine the competency of a health care provider. Part of this is because patient records are generally confidential, so the public just can’t pour through everyone’s chart to determine who is getting bad health care. You could try using malpractice claims as a proxy for competence, but a number of claims don’t ever reach the courts and a number of times the cases are sealed. Medicine is a highly complex field, and as the speciality gets more complex, it becomes more difficult to determine competency.
What board certification is an attempt to do is set a floor for competency, in order to reduce the chances that people will be injured by their health care providers. It also is an attempt to make sure that if they are injured, the health care provider will have enough insurance to cover the claims.
Now, we can argue as to whether medical boards do their job well, or if they can be improved in specific ways. But your solution does nothing to address the underlying problem.
You seem to be assuming that physician costs are what are driving medical costs up in this country. My understanding is that physician wages are being depressed. If I’m correct, then eliminating the physician isn’t going to make much of an impact over the long haul.
Aside from this, once again, there is a huge information assymetry problem when it comes to medication. It is difficult for many people to know in advance how they will react to medications, particularly addictive ones. One of the purposes of the perscription system (and there are a number) is to reduce the likelihood of medication injuries. You haven’t proposed any way that this problem would be solved under your system.
Another purpose of the perscription system is to limit the scope of 3rd party injuries. For example, the perscription system reduces the ability of a caregiver to accidentally give medication to his ward that causes injury. It also reduces the likelihood that someone will get doped on something and go out for a spin in their car. Now, it doesn’t prevent these things entirely, but without a perscription system, my guess is that these would be much worse.
Without a perscription system, drug manufacturers would be exposed to so much legal liability, that I can’t imagine anyone bothering to manufacture certain types of drugs anymore. Why would anybody manufacture, say, morphine, when they would routinely face lawsuits stemming from people out there who use the drug improperly?
How do you know the tests are needless? Insurance companies (whether private or public) have tremendous pressure and incentives to cut costs. Do you really think your insurer is happily forking over money for unnecessary testing?
The purpose of insurance is to pool risk. Some people will be very health all their lives and then die suddenly (as in a car accident). Others will be very ill and rack up medical expenses in the hundreds of thousands. None of us knows where we’ll end up, but most people cannot afford to self-insure for hundreds of thousands of dollars. How do you propose to pool risk if insurance companies are eliminated?
How do you stop the drunk from performing heart surgery without some sort of certification?