Not sure if I understand your question but in terms of university vs others theres usually the following break down as described in FREIDA:
http://www.ama-assn.org/vapp/freida/srch/1,1239,,00.html
1 : University-based, 2 : Community-based, 3 : Military, 4 : Other, 5 :Community hospital, university affiliated.
1: university is simple, its usually a hospital with a medical school (Hopkins, VCU, UVA, UCLA...)
2: Community is pretty much a hospital in the community setting w/ no real ties to a medical school although even these now a days have could have medical students rotating there
5: Community hospital, university affiliated is a community hospital with established ties to a university. For example, Hopkins is reported to have some kinda of affiliations with all of the following[from FREIDA]
http://www.ama-assn.org/vapp/freida/medsch/0,1238,02307,00.html
Other univsersity affiliation are at
http://www.ama-assn.org/vapp/freida/schindx/0,1238,,00.html