I don't know about you, but I despise filling out the same forms over and over again when seeing new healthcare providers. I'd love to start a service modeled after granular smartphone permissions where
(a) I check in at a new office (scan a code, they scan my code, beacon, something like that)
(b) the office then requests x, y, and z information
(c) a push is sent to my phone where I can review the information and approve or disapprove some or all permissions
(d) a final step of either entering my pin at the office, using my thumbprint on my device, or something else.
The key components would be storing the data encrypted at rest, following HIPAA and then some, having a solid auth protocol (keys, jwts, etc).
I think adoption would be helped because the public are already used to permissions like these when installing apps.
The benefits are a lack of paper trail, no one is going to not shred my SSN, my most up to date data is now available, and instead of hosting N apps/databases, I'm storing 1 and can reduce my maintenance, customer support issues because one for all, all for one.
Edit: edited for readability.