Health Navigator helps companies route patients to the right place. Amazon is expanding its presence in the healthcare sector. The company has now acquired Health Navigator after purchasing online pharmacy Pill Pack last year, a start-up that provides online checking of symptoms and triage tools to help companies direct patients to the right facilities.

However, at this stage, the service is intended only for Amazon's own employees and joins the Amazon Care pilot program, which serves as a medical benefit to the staff. If employees are unwell, they can use the service through a video consultation to access virtual care, or, if necessary, obtain a home visit. Now coming under the Amazon Care umbrella is Pill Pack, which offers drug distribution.

Health Navigator is significantly smaller than Pill Pack, for which Amazon charged $753 million last year, to just a dozen staff.

The precise details of the new deal have not yet been announced, but CNBC notes that Health Navigator does not intend to extend its existing customer contracts.

Although the move is focused primarily on internal benefits right now, it is another example of Amazon's longer-term, more entrepreneurial ambitions in the area of healthcare. The company announced last year an alliance with Warren Buffet and JP Morgan Chase aimed at creating healthcare options that "potentially benefit all Americans."