American CareSource Holdings, Inc. (NasdaqCM:GNOW) announced the acquisition of Medac Health Services, P.A. John Pappajohn, acting Chief Executive Officer and Chairman of American CareSource, elaborated on the acquisition, "We are confident that patients, doctors and shareholders will all benefit as we utilize our expertise to expand the Medac brand and franchise through additional strategic acquisitions and new center development." GlobeNewswire reports.