SGH-M919 Device Identification and Possible Cross-flashes

I have a Samsung Galaxy S4 device with model number SGH-M919. The device is using the Android 4.2.2 operating system.

The OEM specifications for the phone are available (remove the spaces):

Code:

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ht tp://ww w.samsung.com/us/mobile/cell-phones/SGH-M919ZWATMB-specs

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In general, references to Samsung Galaxy S4 models seem to be relating to models i9500, i9505, and i9506. Is the SGH-M919 a re-brand of one of the other models? If so, should cross-flash to one of the other models be possible?