My name's Sawbones Jetshard, and I've served as ship's doctor on several independent vessels, most recently the Fortuitous.

[Not that that necessarily means anything to them, but it's better than giving no credentials at all, and honestly, standing on an unknown world surrounded by aliens, it makes Jetshard feel a little better to restate her recent qualifications.]

I don't have any particular knowledge of alien physiology, but I'm well experienced in field medicine among my own kind. If I can be of help, I would like to be.