Profile
Congressman Onder is a respected physician, attorney, and dedicated public servant who has used his background to lead on issues impacting Missourians in both Jefferson City and Washington, D.C.
Dr. Onder received his MD from Washington University School of Medicine in St. Louis and his JD from Saint Louis University Law School. In 1992, he opened a private practice specializing in allergy, asthma, and clinical immunology, where he served Missourians for over 30 years.
In 2006, Dr. Onder was elected to the Missouri State Legislature as the Representative for District 13. In 2014, he was elected to the Missouri State Senate, where he served as Assistant Majority Floor Leader. He completed two terms in the Missouri State Senate before being term-limited in 2018.
Dr. Onder was elected to represent Missouri’s Third Congressional District in 2024 and was sworn into the 119th Congress on January 3, 2025. He currently serves on the House Committee on the Judiciary and the House Committee on Education and the Workforce.
Congressman Onder and his wife, Allison, reside in St. Charles County, Missouri, where he enjoys hunting and spending time with his family. They have six adult children.
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