High dose vitamin K2 (MK-4) reverses it pretty reliably (in animal models) in about 2-4 weeks. Human doses to replicate the animal experiments would be about 1mg/kg, which is not cheap but is cheaper and safer than whatever the doctor will prescribe, and officially none of these drugs would reverse it of course as it is considered irreversible :)
Taurine can synergize nicely with vitamin K and has been used for CVD in humans with good success. It also increase absorption of vitamin K. Adding magnesium can also help as magnesium also has track record in that field and the taurine should help magnesium retention too.
It could reverse calcified arteries and arterioles but would not impact blockage from an infection induced, autoimmune based attack which causes foam cells to get packed, right?