A maternal-fetal specialist/perinatologist is an obstetrician who has completed two or three years of additional training in Maternal-Fetal Medicine. Perinatologists are board-certified in Obstetrics and Gynecology as well as Perinatology and have expertise in dealing with all aspects of high-risk pregnancies. Our perinatologists are usually consulted to evaluate pregnant women with high-risk conditions or women who need specialized testing in their pregnancy. Perinatologists routinely perform detailed ultrasound examinations and prenatal diagnosis such as CVS, amniocentesis, and fetal blood sampling.