I think there are advantages and disadvantages to both. I'm at a hospital within a hospital-we have a separate name, and a dedicated floor, but are within a larger hospital. We are a quaternary care facility, drawing from a 9 county area, so we have a pretty good volume (40+ NICU beds, 20 PICU, and 60 something floor beds), but I think it would be hard to have the same level of ancillary services (radiology, phlebotomy, etc) at a free standing hospital in a similar sized community. We do have a helipad (2 actually). We have lots of peds specific people-radiologists, pharmacists, anesthesiologists. Not sure about a pedi CT though! We have attendings in all the specialties, and a pediatric division for most (I think rheum and derm are the only exceptions). We have child life (both on the floors and in the ED-which is a separate peds ED), a school room, a playdeck, and an onsite Ronald McDonald house. One drawback to a children's only hospital is that some have no well-babies-I think most programs have alternate sites for newborn, but I like having it on site (and of course we do lots of deliveries on our NICU rotation!). It's also nice to have adult services to consult when our older adolescents come in with adult issues (OB/gyn issues, advanced kidney disease from type2 diabetes)-not only do we have their advice but I find it's easier to transition them to adult providers when we have them onsite. We also get adult patients with pediatric problems (Ewings sarcoma, CF) who still are attended on by the pediatric specialists, but can be on adult floors. We also have med peds residents, which I don't think you usually have with a freestanding peds hospital, and they add a nice perspective to the program. I think the ideal might be an attached but physically separate children's hospital (I think Yale might be this way). But I like where I am 🙂.
Downside: The lobby isn't very child friendly!