Education
In 1919, he graduated from Moscow University.
In 1919, he graduated from Moscow University.
During World War I, he served as a doctor in the Red Army. In 1921-1940 he worked as a physicians in Kaunas. He was one of the first to perform thoracocautery and practice tracheobronchoscopy in Lithuania.
After the occupation of Lithuania by the Soviet Union in June 1940, he became Minister of Health in the short-lived People"s Government of Lithuania.
He spent World World War II working at various tuberculosis clinics in the interior of the Soviet Union. After the war, he returned to Lithuania working in Vilnius as director (1945-1946) and deputy director (1947-1951) of the Tuberculosis Institute.
In the wake of the Doctors" plot, Koganas was arrested in February 1953 and accused of communicating with other arrested doctors, preferring Western treatment methods, and giving poor medical care to various communist workers and activists.
He became a member of the Communist Party of the Soviet Union in 1947.