In the first confirmation that Department of Veterans Affairs administrators manipulated medical waiting lists at one and possibly more hospitals, the department's inspector general reported on Wednesday that 1,700 patients at the veterans medical center in Phoenix were not placed on the official waiting list for doctors' appointments and may never have received care. The scathing report by Richard J. Griffin, the acting inspector general, validates allegations raised by whistle-blowers and others that Veterans Affairs officials in Phoenix employed artifices to cloak long waiting times for veterans seeking medical care.