Agree with the comments about medical
billing. However, another option that may be more viable is medical
May require less training
but you do need to be able to type (I've read) 60 WPM or better.
Of course, with just about any remote
access would be necessary.
I don't know what the likelihood of getting contracts remotely are. Seems to me you would still have to do some sales calls and meet in person to get established. I would think that once established, word of mouth etc could produce additional contracts that may not require meeting in person.
You would have to do some research
to see if it would work