Benjamin P. Lafsky, 95, a retired Washington physician who was an emeritus staff member of George Washington University Hospital and Holy Cross Hospital, died of a heart ailment Nov. 18 at the Tall Oaks assisted-living facility in Reston.

Dr. Lafsky, a former Bethesda resident, had an allergy and internal medical practice in Washington for about 50 years, until 1987. For most of that time, his office was in the Old Park Lane Building at 2025 I St. NW.

He was born in New York and raised in Washington, where he graduated from McKinley Technical High School and obtained undergraduate and medical degrees from George Washington University. He interned and completed his residency in pediatrics at the old Gallinger Hospital in Washington.

He also was an Army reservist who left his budding private practice to serve in the Army during World War II. He was stationed in the Pacific, where he attained the rank of lieutenant colonel and served as acting commanding officer of the 360th Station Hospital in New Guinea.

After the war, he reestablished his practice in downtown Washington and served on the staffs of the old Doctor's Hospital, Sibley Memorial Hospital and Washington Hospital Center.

He was a member of the D.C. Medical Society, the American Academy of Allergy and the American College of Allergists, as well as Temple Sinai in Washington.

Survivors include his wife, Ruth B. Lafsky of Reston; a son, Robert D. Lafsky of Great Falls; a sister, Ruth Liberman of Silver Spring; and three grandchildren.