Was sold as Nephthytis 'Maria'

Your plant appears to be in the correct database entry. Syngonium podophyllum was sometimes confused with Nephthytis and it looks like the confusion continues.

Do you mean that my plant is actually Syngonium podophyllum and the tag is wrong?

Yes. Nephthytis is a name still misapplied to Syngonium. It's an old mistake which still crops up occasionally. Do you have a photo of the tag @indoorplants? This link to Exotic Angel Plants is for Nephthytis 'Maria'. You'll notice the botanical name is Syngonium Podophyllum.
It's possible your plant is Nephthytis (Syngonium podophyllum 'Maria Allusion') but I'm not sure.

Actually, looking at the tag from Exotic Angel Plants, both names are listed! Syngonium below Nephthytis.

Great!