A medical clinic that provides free care to Portland-area residents without health insurance is expected to run out of money at the end of February and may have to close unless it finds a partner to help pay the bills. The Portland Community Free Clinic has been funded by Mercy Hospital and the city. But Mercy last year stopped its annual contribution of $210,000, citing shifting priorities and its belief that Portland had other resources to serve the uninsured. Clinic officials tell The Portland Press Herald, the clinic, which relies on doctors and nurses volunteering time, is operating on an annual budget of $100,000 and its cash reserves are running out. The clinic serves about 600 people who earn too much to qualify for government health care, but can’t afford insurance.