The first step to finding medical insurance for someone is to get quotes. The best way to do this is through a local agent. Depending on how old they are, and why they’ve never had insurance (most of the time, it’s because they’ve lived outside the US), it might be very difficult to find a company willing to insure them.

Local agents will be able to help. For example, your car insurance agent can point you in the right direction, or refer you to someone who can.

If your parents are perfectly healthy, insurance can still be expensive. It is worth shopping around and comparing quotes.