I'm not familiar with that specific spout...
Normally, spouts are attached either screwed onto a fitting (often generic) or slid onto a bare pipe. One, you unscrew, the other you loosen a set screw and pull it off.
Unless the screw-in fitting is unique to the brand, there are available replacements.
If you have access to the back side of the tiled wall, say through a closet, or another room, you can probably replace the fitting, if required, to put a new spout on. If you can't get back there, then you may need to tear out some tile. If you are careful, you might be able ot add a decorative accent around the spout.