KENNETH COFFIN is a seasoned litigator and trial lawyer, with experience in government investigations, healthcare, and government enforcement. Ken has led hundreds of investigations, including matters involving the False Claims Act, healthcare enforcement, government contracts, parallel civil and criminal investigations, and parallel state/federal investigations. Ken also has extensive experience litigating challenges to federal statutes and regulations.
Before rejoining Sidley, Ken served for over 11 years in trial-level and leadership positions at the U.S. Attorney’s Office for the Northern District of Texas. He most recently served as the office’s Civil Chief, where he led a team of AUSAs and support professionals handling civil litigation and government investigations on behalf of the United States across the Northern District of Texas. As Civil Chief, Ken supervised the Division’s Affirmative Civil Enforcement (FCA), Financial Litigation, and Defensive sections. He also served as part of the office’s senior management team, advising the U.S. Attorney and other Department of Justice officials on high-profile matters. Earlier in his tenure at the U.S. Attorney’s Office, Ken led the District’s Affirmative Civil Enforcement practice, overseeing False Claims Act, healthcare fraud, procurement fraud, and COVID-19-related enforcement.
Ken led multiple consequential False Claims Act investigations during his tenure in government, resulting in hundreds of millions of dollars in settlements on behalf of the United States. His work earned him multiple national honors, including the Council of the Inspectors General on Integrity and Efficiency “Award for Excellence in Investigations” (2022, 2024) and recognition from the National Healthcare Anti-Fraud Association for “Specialty Benefits Investigation of the Year” (2022).
Ken began his career as a law clerk to The Honorable Reed O’Connor of the U.S. District Court for the Northern District of Texas. He earned his J.D., magna cum laude, from the University of Notre Dame Law School, where he served on the Notre Dame Law Review, and his B.A. in history and government from the College of William & Mary.