Amazon officially becomes a health care provider after closing purchase of One Medical

Amazon's months-long effort to acquire One Medical is finished — for now, at least. The company has officially completed its $3.9 billion purchase, giving it a primary healthcare provider with in-person and virtual treatment as well as lab tests. The successful buyout isn't leading to any immediate changes in One Medical's services beyond a temporary $55 discount on a one-year membership (now $144), but Amazon said last July that it planned a "reinvention" of healthcare with the takeover.

The completion comes just a day after the Federal Trade Commission said it wouldn't contest the buyout. However, the regulator also says it's still investigating the deal to explore potential anti-competitive effects and privacy concerns raised by Amazon's access to health data. An FTC official told CNN the agency will warn Amazon it's closing the purchase at its own risk, and might still face a government challenge later.