LAWYER PROFILE
Michael Theis

Michael Theis

USA 2026

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Ranked in 1 practice area

About

Provided by Hogan Lovells Cadwalader

USA

Practice Areas

For more than two decades, Mike Theis has been on the frontlines of litigation involving allegations of fraud and false claims. Nationally recognized for his experience with and understanding of the False Claims Act and qui tam litigation, Mike leads the False Claims Act practice for Hogan Lovells Cadwalader.

Before joining Hogan Lovells Cadwalader, Mike was a pioneer in the health care fraud enforcement efforts undertaken by the Department of Justice following the 1986 amendments to the federal False Claims Act. As a trial lawyer in the Civil Division from 1988 to 1997, he was responsible for the recovery of millions of dollars under the False Claims Act and established some of the key precedents interpreting the qui tam provisions of the Act.

Today, Mike is a Senior Counsel in the Investigations, White Collar and Fraud practice of Hogan Lovells Cadwalader. He is highly skilled in counseling individuals and companies who face government scrutiny for fraud and false claims. He draws on his comprehensive experience in both government and private practice, civil and criminal investigations, and trial work to provide clear, creative, and collaborative advice to companies targeted in federal law enforcement investigations. He is routinely called upon to negotiate "global" settlements of complex criminal, civil, and administrative enforcement matters.

As an Assistant U.S. Attorney in the District of Colorado from 1997 to 2005, Mike handled dozens of False Claims Act cases. He also investigated and prosecuted health care fraud, mail fraud, and wire fraud offenses, trying several cases to verdict in federal court.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Litigation: White-Collar Crime & Government Investigations - Colorado

Band 1
Band 1

Individual Editorial
Michael Theis defends all manner of corporate crime but is particularly notable for his expertise in FCA matters, thanks in part to his time at the DOJ where he prosecuted false claims in the healthcare industry. In addition to criminal defense, he handles investigations.

Strengths

Provided by Chambers

  • Michael is a subject matter expert who is detail-oriented and meticulous. He is a smart person who gets me the information I need in the format I need it.

    Litigation: White-Collar Crime & Government InvestigationsChambers Guide to the USA
  • Michael is the dean of the white-collar healthcare practice.

    Litigation: White-Collar Crime & Government InvestigationsChambers Guide to the USA

Ranked Individuals at Hogan Lovells Cadwalader (262)

California

California: San Francisco, Silicon Valley & Surrou

California: Southern

Colorado

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