Umm...actually, no they don't.
Purchasing health insurance is a matter of PRIVATE contract, and no public entity called a 'State' or any of its legal or political subdivisions has any authority o force a private person into a public contract.
Trying to blend the People with he government IS the Constitutional definition of treason.
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Since the union of the sovereignty with the government, constitutes a state of absolute power, or tyranny, over the people, every attempt to effect such an union is treason against the sovereignty, in the actors; and every extension of the administrative authority beyond its just constitutional limits, is absolutely an act of usurpation in the government, of that sovereignty, which the people have reserved to themselves.
Preliminary Remarks, St. George Tucker, View of the Constitution
Okay.