Amazon and One Medical have agreed to merge as an Amazon acquisition. The all-cash deal is valued at nearly $4 billion.

Neil Lindsay, senior vice president of Amazon Health Services, said, “health care is high on the list of experiences that need reinvention.” He hopes Amazon can be one of the companies “that helps dramatically improve the healthcare experience over the next several years.”

One Medical, a membership-based primary care practice, has nearly 200 locations in over a dozen U.S. markets. It also offers virtual services. The company works with over 8,000 companies to provide health benefits to their employees. As of May, the company had over 750,000 member patients.

In 2018, Amazon acquired online pharmacy PillPack, later launching its own online pharmacy in the U.S.

Some have raised concerns about the access to people’s online purchasing data and healthcare records. Lower healthcare costs and convenience of care may dissuade the naysayers, however.