Thousands of Greater Cincinnati patients of UC Health may be shopping for new doctors in the new year as the region's largest medical system and United Healthcare fight over the terms of a contract to replace a deal that expires Dec. 31. The executive director of United Healthcare in Southwest Ohio and Northern Kentucky laid out the major problem to reaching an agreement: UC Health, he said, has asked for "a double-digit rate increase and to be paid significantly more than what other similar academic hospitals in Ohio and Kentucky are paid for providing the same services."