Complex sentence: James Ostermann Mason (born June 19,1930) was the United States Assistant Secretary for Health from 1989 to 1993 and the Acting Surgeon General of the United States from 1989 to 1990 and a former Admiral in the United States Public Health Service Commissioned Corps.
Split into simpler sentences: James Ostermann Mason (born June 19,1930) was the United States Assistant Secretary for Health (ASH) from 1989 to 1993 and the Acting Surgeon General of the United States from 1989 to 1990. As the ASH he was also a former Admiral in the United States Public Health Service Commissioned Corps.