Investing in primary care as a preventative measure is associated with improved medical care quality, fewer hospital visits, and lower spending overall, a study has found. If all California providers spent as much on primary care as the highest investing health systems, they could avoid 25,000 acute hospital stays and 89,000 emergency department visits while saving $2.4 billion in healthcare spending a year, according to a study funded by the California Health Care Foundation, Covered California and the Milbank Memorial Fund. Read more.