What about the right congressman? Find whichever one's constituents are most likely to vote based on health related legislation, and try to suggest they get it adopted by a government agency. Through political ads people can see they immediately support the idea, visit the platform as-is, and that will influence their vote. Even if legislation doesn't ultimately get through that's still a lot of attention. Goes for any elected position whether it be federal, state, or even some smaller board of some kind. Pitching voter influence is a much stronger drive than simply suggesting people pay for something.