Thanks @Critter-3.
I now realize that I should have mentioned:
1. This wasn't an incentive for doing anything. It was in 2022, and I think was intended as Covid and/or inflation relief
2. It was on a Medicare Advantage plan
3. Schedule A doesn't apply, because I'm using the standard deduction
So your initial thoughts ("non taxable unless a 1099 is issued for the distribution") seem appropriate.
