A hinge assembly for use with a door, in particular, an aircraft door, that enables the door to remain substantially parallel to the fuselage of the aircraft when the door is open and closed. The hinge assembly includes a door support assembly that couples to the door, and a hinge arm assembly. The hinge arm assembly includes a first gear assembly that couples to the fuselage, a second gear assembly that couples the hinge arm assembly to the door support assembly, and a linkage assembly coupled to the first and second gear assemblies. The first and second gear assemblies and linkage assembly cooperate to move the door support assembly and hinge arm assembly with respect to each other.