Afterwards, he became a lecturer of dermatology and surgery at the University of Christiania and later attained a full professorship (1851-1869).
[5][6] In the 1840s, with dermatologist Daniel Cornelius Danielssen (1815–1894), Boeck conducted research of leprosy.
From their studies, the two physicians collaborated on an important treatise on leprosy called Om Spedalskhed.
At the time, Boeck and Danielssen believed leprosy to be an hereditary disease.
Later in his career, he visited the United States in order to research leprosy among Norwegian-American immigrants.