I'm in the US on a J1 visa and through a bizarre situation with my university I may be unable to prove that I was covered by health insurance for the entire length of my stay, even though I was. I don't think that this will be an immediate issue since I don't know why I would be requested to supply proof of past medical insurance during my current stay.

However, I remember reading somewhere that if I apply for a visa to the US in future, I will need to prove that I maintained health insurance for the entire length of any previous stays with a visa. But now I can't find any information about this or what other penalties there might be for being unable to prove that I maintained medical insurance in the past.

If a apply for a VISA in the future, will I need to prove that I maintained health insurance for the entire length of any previous stays in the US?

If I cannot prove that I maintained health insurance for a previous stay, will that disqualify me for getting a VISA of any kind to the US ever?