A group of Temple University doctors is notifying patients that it has reached an impasse in contract negotiations with Keystone Mercy Health Plan. The contract with Temple University Physicians expires Aug. 31, and "based on the expiration of these contracts, TUP can no longer provide primary care, specialty care or hospital outpatient testing at Temple University Health System facilities for patients covered by Keystone Mercy," the university said in a release. Temple University Physicians consists of faculty members from Temple's School of Medicine, and they provide most of the care at Temple University Health System hospitals.