Where is the clinic exactly? I don't recall noticing it on our first trip. Now that we have a child in tow it is probably a good idea to know where to go.
there is also a physician office - Dr. Scott in the Marketplace (3rd floor above Starfish). I've been there! I think it's called Healthcare Connections (or something like that).
Myra Keating clinic is about two miles up Centerline Road. It is just past Gifft Hill Road on the Left. It sits a bit up on a hill and is not easily seen from the road, probably why you never noticed it. There is always a doctor on staff or on call. They also have a helipad for major emergencies that require the hospital facilities in St. Thomas. 340-693-8900