(University of California - Davis Health) As insurers, medical groups, vendors and supply chains expand services with acquisitions/mergers, and Walmart, Amazon and other retail outlets deliver health care services, including telehealth, UC Davis School of Medicine physicians say more needs to be done to protect patient privacy, anticipate the capabilities of artificial intelligence and other rapidly advancing technologies, and leverage the significant advantages these outlets have over current health care organizations re access to data to improve health care delivery.