What is the difference between neonatologist and a perinatologist?

Mother-fetus/newborn. Neo(new)natologists care for babies in the first month of their life and sometimes beyond. Peri(around)natologists care for fetuses during and before the time of birth. Newer term is maternal-fetal medicine, a subscpecialty focusing on maternal and fetal health throughout and sometimes before pregnancy. Neonatologist has peds residency + neonatology fellowship. Perinatologist has obgyn + mfm ed.