James P. Mann, 76, a former physician who retired in 1985 as a division director for new-drug evaluation at the Food and Drug Administration, died of pancreatic cancer Dec. 14 at his Dumfries home.

He practiced pulmonary medicine in Washington and Alexandria for 27 years and was an FDA adviser before joining the agency's staff in 1980.

Dr. Mann was born in Williamsport, Pa., and raised in Washington. He was a graduate of Roosevelt High School and a cum laude graduate of George Washington University. He trained at King's County Hospital and the Trudeau Institute, both in New York, and at the Gallinger Hospital, a predecessor of D.C. General Hospital.

Dr. Mann served in the Army during the Korean War. He was assigned to a Tokyo hospital and at the Koje do Island prison camp, where he conducted a study for the United Nations of pulmonary disease among prisoners of war.

In addition to his private practice, he was an associate clinical professor of medicine at GWU. He also helped begin the respiratory therapy department at Alexandria Hospital and founded a clinic for the treatment of emphysema that was staffed by volunteer doctors.

Dr. Mann was a member of the American Society of Internal Medicine, American College of Chest Physicians, American College of Physicians and the American Medical Association.

Survivors include his wife of 56 years, Lorene Lowe Mann of Dumfries; three children, James P. Mann Jr. of Germantown, Richard E. Mann of Dumfries and Kathryn Mann Horlick of Washington; two brothers, John W. Mann of Chicago and David L. Mann of Loudon, Tenn.; two sisters, Carol Mann Thomas of New Smyrna Beach, Fla., and Shirley Mann Barr of Potomac; seven grandsons and two great-grandsons.