malate dehydrogenase activity oxidoreductase activity, acting on the CH-OH group of donors, NAD or NADP as acceptor L-malate dehydrogenase (NAD+) activity malate (NAD) dehydrogenase activity Catalysis of the reaction: (S)-malate + NAD+ = oxaloacetate + NADH + H+. NAD-dependent malic dehydrogenase activity NAD-malic dehydrogenase activity L-malate-NAD+ oxidoreductase activity NAD-dependent malate dehydrogenase activity GO:0030060 Reactome:R-HSA-70979 NAD-specific malate dehydrogenase activity RHEA:21432 malic acid dehydrogenase activity NAD-linked malate dehydrogenase activity MDH MetaCyc:MALATE-DEH-RXN (S)-malate:NAD+ oxidoreductase activity NAD-L-malate dehydrogenase activity NAD-malate dehydrogenase activity malic dehydrogenase activity EC:1.1.1.37 molecular_function Reactome:R-HSA-9856871