Does they have some partnership with some hospitals or clinics? And in which country if yes? Medicine is very conservative niche 
That's a very good question, On the road map I saw that between July and December they would hire health professionals, but i also saw that in their team, are people with many medical knowledge.
Good thing they have medical people in their team, but they should also hire more developers with blockchain expertise
Yes, medical expertise alone won't help eHealth to become successful. They also need blockchain experts. But I guess they will extend the team once the first funds during the crowdsale are collected.
they also need connections and people/medical companies/clinics using it. Judging by the curriculum the team got i don't think it would be a big problem finding those.
I'm also curious to know how the private sale is going.