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Dr. Nick Oberheiden focuses his practice on white-collar and whistleblower defense, CIDs, company compliance, government investigations, FBI, OIG, SEC, FTC, FEC, OPR & FCPA enforcement, and the defense of businesses in civil litigation.


Perhaps one sign of Nick’s broad peer recognition is the fact that current government officials, prosecutors, intelligence community personnel with SAP/SCI top secret clearance, and even branches of the U.S. Department of State and the Office of Inspector General (OIG) have chosen Nick when needing reliable legal advice or facing DOJ/OIG probes, OPR matters, or litigation challenges.


Notably, Nick has represented diplomats, sitting U.S. governors, high-level DOJ officials, lawyers, doctors, prosecutors, and a plethora of businesses and their owners in audits, litigation, compliance, and defense matters. Recently, Nick represented the European offices of one of the largest law firms in the world in a U.S. proceeding.


This is what verified Clients say

  • Nick is a superb lawyer with exceptional skills and a formidable personality.
  • Nick is always there for his clients, constantly identifying solutions.
  • Nick outlined a defense strategy that was so out of this world—and he executed and delivered like I would never have imagined.


Practice Areas

  • Corporate Crisis Management
  • White Collar Defense & Investigations
  • Federal Criminal Investigations & Trials
  • Healthcare Fraud, Audits & Litigation
  • Whistleblower Defense, False Claims Act, CID
  • SEC Investigations and Litigation and Subpoenas
  • National Security & Congressional Investigations
  • Representation of Government Officials (OPR and OIG and DOJ)
  • Protection of Companies and Executives
  • Defense of Doctors, Lawyers, CPAs, and other Professionals



Featured by over 1,500 radio and TV appearances in all 50 states—including the Wall Street JournalForbes Magazine, the Los Angeles TimesBloombergFox NewsNBCCNBC, and more than 600 international newspapers—Nick has made a name for himself in high-profile cases such as the Michael Cohen case, public corruption investigations, and cases of national significance involving the White House, the United States House Committee on Ethics, the U.S. Department of State, the U.S. Department of Defense, the U.S. Department of Justice, the Office of Inspector General, the Bureau of Diplomatic Security, and the FBI, among many others.


Representative Matters

Clients from 45 U.S. States have hired attorney Dr. Nick Oberheiden to seek effective protection against government investigations, healthcare audits, fraud allegations, grand jury proceedings, whistleblower cases, federal criminal cases, and regarding questions of corporate compliance. Known for his exceptional analytical skills and effectiveness, Nick routinely avoids criminal charges in federal investigations and, as one of few lawyers nationwide, Nick has obtained “Not Guilty” verdicts in federal criminal trials.

Partially with local counsel, Nick has appeared before federal agencies and courts, U.S. Attorney’s Offices in New York City, Brooklyn, Newark, Miami, Washington D.C., Boston, Detroit, Anchorage, New Hampshire, Philadelphia, Los Angeles, Dallas, Fort Worth, Lubbock, Houston, Austin, El Paso, Chicago, Plano, Tyler, San Antonio, McAllen, Phoenix, Las Vegas, Denver, Portland, Seattle, Omaha, Oklahoma City, Muskogee, Nashville, Memphis, Milwaukee, Baltimore, Cleveland, St. Louis, Jefferson City, Cincinnati, Columbus, Louisville, Indianapolis, Orlando, Tampa, Atlanta, New Orleans, Salt Lake City, Little Rock, Charleston, Charlotte, Norfolk, Alexandria, and Sacramento.


Federal Litigation


Criminal Cases. When pleading guilty is simply not an option, Nick is available to identify promising litigation strategies and to prepare clients meticulously for trials. Nick has tried cases to verdict, and he has obtained acquittals in federal white-collar criminal jury trials. A large portion of Nick’s work involves the defense of healthcare providers and businesses accused of healthcare fraud, kickbacks, Medicare Fraud, and telemedicine violations. Additionally, Nick resolved a great number of conspiracy cases, Controlled Substances Act matters, mail fraud, wire fraud, money laundering, bitcoin and cryptocurrency cases, bribery, corruption, investor fraud, insider trading, tax fraud, bank fraud, Covid-19, PPP loan, and computer offenses.


Civil Cases. Nick set his first federal precedent when he, in the early stage of private practice, convinced a federal judge to break with 70 years of established practice and redefined the subpoena authority of attorneys under Rule 45 Federal Rules of Civil Procedure. In that case alone, Nick quashed 14 federal subpoenas. Since, Nick has made sure that his CEO, CFO, and business owner clients do not suffer civil liabilities in both, civil government cases (e.g. False Claims Act) or private litigation proceedings (e.g. employer defense).



Nick has written several widely published books, articles, and blogs and he has taught constitutional law and federal civil procedure on four continents. Nick’s Ph.D. thesis, a critical analysis of constitutional interpretation, was personally enriched by U.S. Supreme Court Justice Stephen Breyer, the Chief Justice of Brazil, and others.



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Dr. Nick Oberheiden - America's Top 50 Lawyer - Defense Lawyer - Texas

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