No, “EM” cards are not NFC. Those cards are the same as the xEM implant, low frequency, no memory, typically used for access control. Search amazon for “ntag216”, this is the same chip as in the xNT implant and they come in all sorts of form factors. Basically anything you can do with them you can do with the xNT implant.
Then get NFC Tools (worth paying for the pro) to read and write it. Personally I like it better then NXP Tag Writer. NXP Tag info is good too but only reads. This is all assuming you have android. If you have iOS you are out of luck. Apple only allows you to read NDEF records off it. No writing or access to the UID.