Hi. I just registered after seeing your question unanswered.
I think it’s possible with the XML Google Maps plugin found here:
https://www.ads-software.com/extend/plugins/xml-google-maps/
Here is a sample of its implementation of Google Maps with geotagged images from NextGen Gallery:
https://www.matusz.ch/blog/projekte/xml-google-maps-wordpress-plugin-en/samples/n11/
