I believe there is some emerging evidence coming out of Ontario, the Institute for Clinical Evaluative Sciences, regarding their family health teams in Ontario. I'm not familiar with the evaluations and the results but I believe they are currently starting to emerge.
I know that for the Calgary group there aren't formal evaluations on the effectiveness of these interventions or the aggregations of providers. Nor are there evaluations of the new primary care teams that are being developed and implemented in British Columbia.