You bring up a valid argument. Physicians and hospitals are reluctant to adopt new technologies.
Healthcare startups that become successful in the GRAND SCHEME of things will happen because of proper execution. I am currently working on a healthcare startup. I understand all of the issues at hand. For one, the industry and government are focusing on the backend (healthcare provider) technologies, but many companies lack the insight of realizing big change happens on the patient side; although it's not the focus because physicians are the ones "providing the care." See, patients DO trust their doctors, so why not take "advantage" of that. Physicians need to INTERACT more with their patients directly through technology - and here's the kicker - only then can we slowly incorporate new technologies in EMR and hospital systems. Those integrations need to be on top of a layer of a "social" technology interaction with patients. Key word being "on top of" an already established system that engages patients. Now this is how physicians' attitudes will change - because they see patients already using the system.