Is the transition to Universal health care plausible in the US?

Currently the United states spends two to three times per capita on health care compared to other industrialized nations. While establishing a single payer system would be overall an amazing accomplishment for our country the switch may be too currently economically unstable. An attempt to dismantle the private payer system in the US would currently cause an economic catastrophe as over 800,000 people are employed by private insurance companies and thousands more by medical facilities just to deal with billing insurance. In order to combat this the US would need to enact a plan that would slowly change the industry from private payer to single payer. One example I can think of is when China transitioned to a Capitalist based economy. They achieved this role by slowly and closely managing different sectors of the economy in the transition and it was found to be tremendously successful. Switching to fast can cause to much economic instability and could leave drastic effects for future generations.