If you're dealing with personal health information (PHI), I would advise you to temporarily close your site and hire a lawyer straight away. Whenever you touch this kind of data, regulatory regimes like HIPAA may apply, and you need to be extremely careful. There's not a HIPAA compliance or even a privacy policy statement available on your front page. See https://www.hhs.gov/hipaa/for-professionals/privacy/laws-reg..…
From your link:
> The Privacy Rule, as well as all the Administrative Simplification rules, apply to health plans, health care clearinghouses, and to any health care provider who transmits health information in electronic form in connection with transactions for which the Secretary of HHS has adopted standards under HIPAA (the "covered entities")