The Biden Administration can actually do that.
Just declare that every VA hospital in the US will do abortions.
Yes, he could ‘order’ it. But that, too, would be problematic in that VA services are supposedly only for veterans. Providing abortions to any woman without veteran status or having served would be equivalent to just opening up the gates and having the VA treat illegal aliens - anybody. It would be a bad move, IMO.
I’d think they’d try something like building abortion clinics at some other agency like NHS, NIH, etc.