The Sutter Health Network / Palo Alto Medical Foundation routinely get caught committing widespread insurance fraud.
They also offer products that seem to be junk insurance to me, but I’m not a lawyer.
Here are three examples of their alleged widespread insurance fraud:
https://allaboutlawyer.com/claim-your-sutter-health-settleme...
https://www.sfgate.com/bayarea/article/sutter-health-accused...
https://www.justice.gov/archives/opa/pr/government-intervene...
Some of those suites involve other big providers, like KP. Not sure if any of the healthcare providers around here are reputable at this point.
We've been through cancer and diabetes (so far).
I was gonna bring up Franz but you said "rarely" not "never".
I think people are wising up to the fact that at scale modern forms of insurance, all forms not just health, is not a real product that delivers value to both parties, it's a contrived way to use government force to lighten everyone's pockets to the benefit of a few while paying out only as needed to justify the pretext and the only thing it really shares with it's free-ish market equivalents from 50+yr ago is the name. So there will probably be more murders before things change.
Us typing this here and now with the world as it is is necessarily predicated on a ton of things who's details came down in large part to chance.
As someone with a little experience with the 'advertiser side' of Google, they also push junk to their paying clients, using every opportunity to sell terrible, worthless placements to advertisers. Which is to say that the problem is not that 'searchers' are the product, the problem is that Google is not focused on creating value for its counter-parties.