Stephen Ira Katz (1941 – December 20, 2018) was an American immunodermatologist who served as the director of the National Institute of Arthritis and Musculoskeletal and Skin Diseases from 1995 to 2018. He was the Marion B. Sulzberger Professor of Dermatology at the Uniformed Services University of the Health Sciences from 1989 to 1995. উৎস: Wikipedia (en)