A divided Commonwealth Court has ordered Pennsylvania's insurance commissioner to recalculate how much health care providers should pay to support a state-managed fund that helps cover the cost of damage awards in medical malpractice cases. Millions of dollars are at issue in the ruling regarding the Medical Care Availability and Reduction of Error Fund. "There is a lot at stake here," Denise Zimmerman, executive vice president of the Pennsylvania Medical Society, said Monday. The full dollar amount involved in the dispute, and how medical providers might receive compensation, remains to be seen pending the results of the court-ordered recalculation of CARE assessments for 2009 through 2011, she said.