Merger activity in the healthcare provider market drove a number of new positions among hedge funds in the last quarter, with hospitals being the largest subsector of hedge fund ownership within the healthcare category. Outpatient care saw a decline in hedge fund ownership, with DaVita HealthCare Partners Inc (NYSE:DVA) showing the largest decline according to a report prepared by Gary Taylor at Citi. Hedge funds: Acute Equal-weight hedge fund ownership went up last quarter by 990 basis points year on year, and by 450 basis points sequentially to a 31.6 percent total float. Health Management Associates Inc (NYSE:HMA) and Community Health Systems (NYSE:CYH)…