[delinka]

Why don't we already have apps on our smartphones for this?

    - $PROVIDER wants the following data: $LIST_OF_OPTIONAL_AND_REQUIRED_ITEMS
    - You select which you can provide
    - If the data to be provided includes "billing identifier" or "credit file identifier" (and especially if the identifier is, say, SSN), then first your app obtains a new identifier from the reporting agency or your insurance carrier, and *that* number is given to $PROVIDER

Gives more control back to the customer/patient and eliminates (yet another) treasure trove of data for attackers to go after.

[fosco]

what happens if you do not trust your smartphone? I do not like storing anything of value on mine.

not that it matters but I recently switched to LineageOS and my opinion has not changed.

[drexlspivey]

Apple does this with apple pay and the per device identifier is stored in the secure enclave (seperate chip that can create keys and sign data). The identifier can never leave the SE, requires Touch/Face ID to unlock and can be wiped remotely in case you lose your phone.