Spertus, Josephs & Minnick LLP

4 Best Lawyers awards

Spertus, Josephs & Minnick LLP logo

Awarded Practice Areas

Criminal Defense: White-Collar

Biography

Mario Nguyen is a skilled litigator, investigator, and legal scholar. He has over 200 hours of experience trying cases in federal court, has conducted investigations with millions of dollars at stake, and teaches at one of the top 30 law schools in the nation.

Mario served as a Trial Attorney in the Fraud Section of the U.S. Department of Justice’s Criminal Division, an inaugural judicial law clerk to a newly appointed federal trial court judge, and an associate to a former U.S. Attorney in the criminal defense and investigations department of a major global law firm.

Mario’s clients are individuals, public bodies, and companies. He helps them build compliance programs, navigate investigations, respond to subpoenas and search warrants, and litigate complex criminal and civil matters. He has handled matters before federal and state courts, grand juries, special litigation committees, and administrative agencies.

Mario’s experience spans a range of issues, including the Foreign Corrupt Practices Act (FCPA), the False Claims Act, the Travel Act, the Sherman Act, the Clayton Act, the Racketeer Influenced and Corrupt Organizations Act (RICO), the Anti-Kickback Statute, the Stark Law, healthcare fraud, conspiracy, false statement, obstruction, bribery, money laundering, forfeiture, embezzlement, bank fraud, securities fraud, mail fraud, wire fraud, tax fraud, and public corruption.

In addition to teaching as an adjunct law professor at Texas A&M University School of Law, Mario has been published by The Texas Lawbook, The Houston Chronicle, and Law360. He was named one of the Best Lawyers Under 40 and one of the Best Lawyers for White-Collar Criminal Defense by D Magazine, HuffPost’s 40 Latinos Under 40 in Foreign Policy, and the Best Informative Speaker in the U.S. by the American Forensic Association in 2012.

(Licensed in Texas and California. Posts here are not intended as legal advice or to create an attorney-client relationship.)
Spertus, Josephs & Minnick LLP

4 Best Lawyers awards

Spertus, Josephs & Minnick LLP logo

Overview

  • English
  • Spanish

  • Pronouns: He/Him
  • Gender: Male

  • Harvard University, J.D., graduated 2017
  • Western Kentucky University, B.A., graduated 2012

  • California, The State Bar of California
  • Texas, State Bar of Texas

  • U.S. District Court for the Northern District of Texas
  • U.S. District Court for the Central District of California

  • California - Trial Courts

  • Department of Justice (DOJ) - Assistant Attorney General of the Criminal Division (CRM)
  • English
  • Spanish
  • California, The State Bar of California
  • Texas, State Bar of Texas
  • Harvard University, J.D., graduated 2017
  • Western Kentucky University, B.A., graduated 2012
  • U.S. District Court for the Northern District of Texas
  • U.S. District Court for the Central District of California
  • Pronouns: He/Him
  • Gender: Male
  • California - Trial Courts
  • Department of Justice (DOJ) - Assistant Attorney General of the Criminal Division (CRM)

Client Testimonials

Awards & Focus

Recognized in Best Lawyers: Ones to Watch® in America 2026 for work in:
  • Criminal Defense: White-Collar

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