All I can hope is that medical establishments EVERYWHERE (including insurance companies) tell these people to fuck the hell off and stonewall them into bankruptcy while blacklisting every product and service they use to hasten the process.
My hope is with you, buddy. Except I fear that whenever money is involved, ethics, humanitarianism and other socially awesome things go out the window.
And never, ever, ever click unsubscribe from anyone but the most reputable companies. It lets the spammers know that someone at that address actually reads those emails, and they don't mind sharing it with their sister companies.
Same goes with loading images from the email. Always have image loading turned off by default if you don't want the sender to get any information back from you.
What sin has not been committed in the name of efficiency?