Complex sentence: Rarely, some facilities do not differentiate between MT and MLT, and both are only referred to as "Med Techs" or "Lab Techs", they are paid the same wages and perform the same duties.
Split into simpler sentences: Rarely, some facilities do not differentiate between MTs and MLTs, and both are only referred to as "med techs" or "lab techs". In these situations they are usually paid the same wages and perform the same duties.