Free medical clinic in LA runs short of volunteers.
One reason? The state-by-state licensing of doctors that prohibits doctors from working in states where they're not specifically licensed. These licenses often cost as much as $1000 annually to maintain, but letting them lapse requires retaking the state certification test... even if you're still licensed and practicing elsewhere.
A trained doctor practicing in one state should be able to handle working in another. It seems sensible to me to drop those requirements.