Both UCSC and Biomart have this data. So you could use the tools in
Data", pull over the complete set for the genome, then identify
overlapping regions versus your coordinates with the tool "Operate on
Genomic Intervals -> Join". For UCSC, the track is UCSC Genes (the
linked table knownToLocusLink has Entrez ID). For Biomart, you can
select the Entrez ID from the list of optional fields to include per
species (be sure to avoid any long text description fields or you may
get an HTML import error, or test and omit if this comes up).
UCSC also has an intersection function in their Table Browser. Send
Galaxy dataset over as a custom track then intersect with the UCSC
track. The Table browser's user guide has instructions.
Hopefully one of these works out for you!
Galaxy Support and Training