Yes, It's from *any* extension at Women and Infants' Hospital. I used to work there. You cannot call that number back as it is only an outgoing phone portal. Brown University and Rhode Island Hospital have the same type of set up as do a lot of large companies.
Thanks, DV! I was waiting for a call from W&I and that phone number came in three times, but every time I answered, it hung up. After doing a search for the #, I found your post and immediately called my Dr. office. Sure enough, it was them. Thanks again!!