@Fifth Business,
As @Phi said Neuromod's on the outskirts of the city.
Figuring out how to get there was slightly painful so here's a guide, hope it helps someone:
Neuromod Medical is in a large hospital complex called Hermitage Clinic. It is fairly close to a hotel, the Clayton Hotel Liffey Valley, and there's a bus (the Airport Hopper, number 767 or 777) that goes to it directly from the airport.
The bus is a bit confusing because it has no schedule (or at least doesn't adhere to the one that is on Google Maps) and its bay isn't marked either. So you gotta go to the bus terminal at the airport and wait until you physically sight the bus - it'll be red and prominently display Airport Hopper on the side. It's a van, not a "full" bus. Comes by twice a hour or so, and waits a few minutes before it leaves. Then you need to ask for a ticket to Liffey Valley which will be 11 euros and can be paid in cash or with card. Ride time will be around 30 minutes.
Google Maps will be able to guide you from there to the Hermitage Clinic, it's a roughly 15 minute walk through a non-pedestrian area (major roads and roundabouts). There is pedestrian pavement, though.
Once you get to Hermitage you'll see Neuromod posters to reassure you that you're in the right place.You don't need to check in anywhere, head up right away with the elevator to the 2nd floor where Neuromod will be at the end of a hallway in Suite 18.
If possible, bring euro coins to feed to the vending machines, Hermitage's cantina is cool but had a very long line when I was there.
