https://www.cnbc.com/2018/01/30/cramer-bezos-amazon-prime-could-upend-the-health-care-system.html >Amazon CEO Jeff Bezos could end up changing the health-care system just as he did with retail, CNBC's Jim Cramer said Tuesday. >Earlier Tuesday, e-commerce giant Amazon, J.P. Morgan and Berkshire Hathaway announced a partnership to improve U.S. employee health care and cut health-care costs.