Dr. Julius S. Neviaser, 77, an orthopedic surgeon and a founding member of the Madison National Bank, died Wednesday at George Washington University Hospital after a heart attack.

A specialist in disorders of the shoulder, Dr. Neviaser was a founding member of the International Shoulder Society and author of a book and more than 80 scientific papers in his field.

He began his private orthopedic practice here in 1931 and subsequently served as the first chairman of the department of orthopedic surgery at Washington Hospital Center, a position he held for 11 years.

Dr. Neviaser also headed the orthopedic department at Prince George's General Hospital, served as clinical professor of orthopedic surgery at George Washington and Howard universities and was an orthopedic consultant to the National Naval Medical Center in Bethesda and the Walter Reed Army Medical Center.

He was a member of numerous medical societies, including the American Orthopaedic Association and the American Academy of Orthopaedic Surgeons. He was a fellow of the American College of Surgeons, the American Medical Association, the Southern Medical Association, the Eastern Orthopaedic Association and the American Fracture Association.

Born in Brandywine, Md., Dr. Neviaser was reared in Washington and graduated from McKinley Technical High School. He earned bachelor's and medical degrees from George Washington University and its medical school.

He served as an intern at Sinai Hospital in Baltimore and was a resident physician at the Hospital for Joint Diseases in New York City.

Dr. Neviaser, who lived in Washington, was a member of the board of directors at the Madison National Bank and a member of Woodmont Country Club in Rockville.

At the time of his death, he was practicing medicine with a son, Dr. Thomas J. Neviaser of Vienna, Va.

Besides his son, survivors include his wife of 47 years, the former Jane Gibbons of Washington; two other sons, Dr. Jules S. Neviaser of Daytona Beach, Fla., and Dr. Robert J. Neviaser of Washington; four brothers, Arnold, of Stamford, Conn., and Albert, David and Morton Neviaser, and a sister, Betty Michelson, all of Washington.