decision of the Department was against the manifest weight of the evidence; (2) he was *363 deprived of the right to equal protection; and (3) he was deprived of the right to due process.
The record indicates that plaintiff earned his medical degree in 1981 in India. In 1987, he commenced post-graduate study at Cook County Hospital to obtain training in the field of plastic surgery. At the time plaintiff entered this post-graduate program, he held a temporary certificate to practice medicine at Cook County Hospital, and he had applied for a permanent license to practice medicine in Illinois. In December 1987, the Department brought charges against plaintiff, alleging that he had violated the Medical Practice Act of 1987 (Act) (Ill.Rev.Stat.1987, ch. 111, par. 4400-1 et seq.) in connectionintroduced evidence in support of the charges against plaintiff. The Department presented evidence that the ASC provides medical services to patients whose complaints are of a less serious nature and where the patients do not require admission to the hospital. The Department introduced evidence that plaintiff's work at the ASC was not prescribed by or incidental to his program of residency training in plastic surgery, but was voluntary and performed by plaintiff in order to earn extra money.
The Department presented the testimony of Mary R., who testified that she went to the ASC on August 10, 1987, because she was suffering from what she believed to be a kidney infection. After waiting several hours, she was treated by plaintiff at the ASC. Mary R. stated that when she