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Leonas Koganas

Lithuanian Jewish doctor

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJun 30, 2026
Entity authorityQ16750628
Source-derived summary

Moisiejus Leonas Koganas (February 20, 1894, Šiauliai – May 30, 1956, Vilnius) was a Lithuanian Jewish medical doctor specializing in lung diseases, particularly tuberculosis.

In 1919, he graduated from Moscow University. During World War I, he served as a doctor in the Red Army. In 1921–40 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 (it was a new ministry; before, there was only the Health Department under the Ministry of Internal Affairs). He spent World War II working at various tuberculosis clinics in the interior of the Soviet Union (Mordovia, Kirghizia, Gorky Oblast, Moscow Oblast). After the war, he returned to Lithuania working in Vilnius as director (1945–46) and deputy director (1947–51) of the Tuberculosis Institute. He became a member of the Communist Party of the Soviet Union in 1947. 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.

Editorial summary

The public source identifies “Leonas Koganas” as lithuanian Jewish doctor. This brief keeps that definition visible, then builds a research path around Leonas, Koganas and Lithuanian.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—1894, 1956, 1919, 1921—that can be checked directly. The linked authority record independently contributes the date 1894-02-20. Its value is orientation rather than verdict, with Leonas, Koganas and Lithuanian providing the first useful test.
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A short description can identify a subject without explaining its stakes. For “Leonas Koganas”, the useful work is to connect “lithuanian Jewish doctor” to the records capable of establishing context and consequence.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jun 30, 2026. The linked authority identifier is Q16750628. VIAF identifies the subject as 7811154260579424480003. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1894, 1956, 1919 and 1921.

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Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

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Source & attribution

This entry incorporates text from Leonas Koganas” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.