Which specific doctors perform a chorionic villus sampling test?

MFMs: Your obstetrician would refer you to a maternal-fetal medicine specialist (perinatologist) or you may have one already if a prior pregnancy or other circumstances caused your current pregnancy to be high risk.

Maternal Fetal Med: Maternal Fetal Medicine MD's are a sub specialist of OB GYN requiring 2 additional years of Fellowship study beyond the OB GYN residency program. They are trained to do CV sampling.