Webusing the physician networks of these insurers, the two retailers can now provide medical care and attract new patients. Amazon, however, is just getting into the. 799 hope street, providence, ri 02906. Open , closes at. Webamazon, cvs and walmart have big healthcare ambitions. But critics say the healthcare system is far too complex for these retailers to figure out. Webcvs came to dominate the retail pharmacy industry and beyond. Some experts wonder whether retail's reach into health care could go too far.