I read the original announcement and also this analysis. Is it decided that Amazon will “own” the healthcare provider? As far as I can tell this is still a joint effort by several companies with the same philosophy on how to solve the problem. Presumably if other large companies were aligned they could create their own joint partnerships or discuss the possibility of joining this one.
One avenue this entity could take is to offer itself as a non-profit third party administrator of a self-funded plan for other companies. Large companies typically put up the money for health insurance anyway combined with employee premiums and then pay a TPA company or health insurer to create the benefit plan and administer it for them. They don't actually buy insurance as a product from a health insurer for their…
This is why the aggregator model described in the article is relevant - the small practices will come to Amazon to plug into their aggregator and access their customers.
In that scenario, Amazon opens up shop in a state, provides cookie cutter TOS agreements to providers that mesh with the state's regulations, and providers on-board themselves in order to access the customer base.