John Pierce



Office: (202) 298-8750
Cell: (214) 952-5169
Facsimile: (202) 337-5804
John Pierce - Award - 2021 Judicial Edition- Lilesparker

Practice Concentration and Experience:

John Pierce in an experienced former Federal prosecutor and trial attorney whose practice focuses on sophisticated criminal defense and civil litigation. His background is rather unique. Prior to entering private practice, Mr. Pierce served as an Assistant U.S. Attorney in the Southern District of California, the District of Columbia and in the Eastern District of Virginia. While working as a Federal prosecutor in the Eastern District of Virginia, he represented the office on the Attorney General’s Advisory Committee (AGAC) for Health Care Fraud. Since leaving the government, Mr. Pierce has successfully represented both foreign and domestic individuals and corporations in health care, commercial securities, corruption, export control and tax disputes. He has also handled a number of whistleblower cases.

After leaving the government in 2000, John Pierce worked at a large Washington, DC based firm known for its vigorous defense of antitrust and other complex litigation. He prosecuted antitrust claims worth $1 billion, defended corporate clients in commercial litigation, and conducted internal investigations. Mr. Pierce opened his own practice in 2003 and founded Themis in 2010. Prior to formally joining our firm, Mr. Pierce worked on a significant number of health care fraud cases with Liles Parker attorneys.

If you are under investigation by the U.S. Department of Justice (DOJ), the Federal Bureau of Investigation (FBI), the Office of Inspector General (OIG), the Defense Criminal Investigative Service (DCIS) or one of the Medicare Fraud Strike Force teams that have been established, give John Pierce a call. He can help protect your business, your reputation and, most importantly, your personal liberty.

Financial / Regulatory Matters Handled by John Pierce:

  • Defended an attorney investigated by U.S. government for investment fraud.
  • Defended an Iranian-American businessmen investigated by U.S. government for criminal violations of U.S. sanctions against Iran.
  • Defended both U.S. and foreign financial experts investigated by the SEC.
  • Defended a U.S. company and its officers investigated for money laundering.
  • Defended a CEO investigated for securities fraud by a state securities regulator.


  • Purdue University, West Lafayette, Indiana (B.S. in Economics).
  • University of Texas, Austin, Texas (J.D.)

Health Care Fraud Related Matters and Cases Handled by John Pierce:

  • Defended multiple pain clinics and their physicians investigated by the FBI and HHS for improper prescribing practices and billing fraud.
  • Defended substance abuse treatment clinics and their providers investigated by the FBI and U.S. Attorney’s Office for billing fraud.
  • Defended a pharmacist investigated by FBI and DEA for money laundering and fraud.
  • Defended a cardiologist investigated by HHS and U.S. Attorney’s Office for billing fraud.
  • Defended a CEO of orthopedic surgery center for billing fraud.
  • Defended a family therapist investigated by HHS and the U.S. Attorney’s Office for billing fraud.
  • Defended an anesthesiologist investigated by FBI and IRS for Medicare and tax fraud.

Recent Awards:

  • Rated “AV Preeminent” Highest Possible Peer Review Rating in Legal Ability and Ethical Standards (20013 — 2021).
  • America’s Most Honored Professionals: Top 1% (2014-2020).
  • Top Rated Lawyers in Litigation (2015).

Federal Admissions:

  • U.S. Supreme Court
  • Several Circuit Courts of Appeal
  • U.S. Court of Federal Claims

State Admissions:

  • District of Columbia
  • Maryland
  • Virginia
  • California
  • Illinois

Community Activities:

  • Serves as an officer of the Invisible Hand Foundation.
  • Is a Member of the Student Life Advisory Counsel for Purdue University.
  • Formerly served as General Counsel to The Board of Directors of The Woods Academy, a private school in Bethesda, Maryland.
  • Coaches several youth sports teams in basketball and softball.