Retired Army Col. Othmar F. Goriup, 75, who was the first chief of the Medical Service Corps after it was established in 1947 in the Army Surgeon General's office died of cardiac arrest Thursday at his home in Silver Spring.

He retired in 1960 as executive officer in the Historical Unit, Army Medical Service, Walter Reed Medical Center here. He later worked as a pharamacist for Peoples Drug Stores for 12 years, retiring a second time in 1974.

Col. Goriup was born in Graz, Austria. He emigrated to this country in 1915 and lived in Pittsburgh. He earned a degree in pharmacy from the University of Pittsburgh and a degree in chemistry from Saint Bonaventure University in New York.

An officer in the Reserves, he went on active duty in 1941 at Langley Field, Va. A year later, he was transferred to headquarters, Air Transport Command, here. He was a plans and operations officer there until 1945.

After World War II, he was integrated into the Regular Army. In 1946-47, he was assigned to the office of the Air Surgeon.

During and immediately after the Korean War, he served the Army Medical Department as executive officer of the medical field service school in Texas, executive officer of the chief surgeon's office, Armed Forces Far East, and executive officer of the station hospital at Camp Zama, Japan. He then was assigned to Walter Reed.

Col. Goriup was a member of the American Pharmaceutical Association, the American Chemical Society, the American Association for the Advancement of Science and the American Hospital Association. He was a fellow of the American College of Apothecaries.

His decorations included the Legion of Merit with Oak Leaf Cluster.

He is survived by his wife, Eileen F., of Silver Spring; a son, Army Lt. Col. Franklin J., of Columbia, Md.; two sisters, Hildegard Goriup of Pittsburgh and Frieda Leydig of Coraopolis, Pa., and three grandchildren.