Dr. Daniel Galos Fuchs, 28, a health science specialist for the Veterans Administration's Department of Medicine and Surgery, died Wednesday at George Washington University Hospital of complications of a brain tumor.

A 1977 graduate of George Washington University's School of Medicine and Health Sciences, Dr. Fuchs also had a considerable background in mathematics and computer science. He had worked for about a year in the Department of Medicine and Surgery's computerized medical systems office, where he created mathematical models for the office's management information system.

Dr. Fuchs served an internship in medicine at George Washington University Hospital and was a psychiatric intern at the Stony Brook Medical Center in New York.

He was a native Washingtonian and a resident of this city. He attended Walt Whitman High School in Bethesda and graduated with high honors from Dartmouth College, where he was a member of Phi Beta Kappa. He was awarded the Upjohn Award for scholarship from George Washington University.

Survivors include his parents, Dr. and Mrs. Marvin Fuchs and four brothers, Jared, Thomas, Henry and Ephraim, all of Washington; a sister Deborah F. Cohen of Philadelphia; his grandfather, Rupert Fuchs of Silver Spring, and his grandmother, Lillian Galos of Punta Gorda, Fla.

The family suggests that expressions of sympathy be in the form of contributions to the Daniel G. Fuchs Memorial Fund at Dartmouth College in care of Bruce Philipson, 1775 K St. NW, Washington, 20006.