Sheldon G. Cohen, 94, an allergist and immunologist at the National Institutes of Health who became executive vice president of the Lupus Foundation of America, died March 26 at his home in Chevy Chase.

He had complications from a stroke, according to a nephew, Lee Epstein.

Dr. Cohen moved to Chevy Chase in 1973 from Wilkes-Barre, Pa., where he had a private medical practice. He conducted immunology research for NIH for a few years before becoming an administrator of research programs.

Between 1981 and 1985, he held positions as the executive vice president of the Lupus Foundation of America and an expert adviser on immunology to the World Health Organization. Since 1988, Dr. Cohen had been researching the history of medicine for the National Library of Medicine. He never retired.

Sheldon Gilbert Cohen was born in Pittston, Pa. He graduated from Ohio State University in 1940 and graduated from New York University’s medical school in 1943.

He was a flight surgeon in the Army Air Forces in England during World War II.

Dr. Cohen never married and had no immediate survivors.

— Mohana Ravindranath