I doubt a company would jeopardize their reputation by doing that, and even if they did, the Affordable Care Act would prevent insurance companies from discriminating against you on your medical history or genetics.
The ACA, if left intact, would prevent companies from discriminating against you when they provide you with /health/ insurance. Life, disability, etc. not included.
There's an incredible amount of regulation with health data/records that force companies to anonymize them and not allow them to sell it.