About Me

My practice focuses on white-collar criminal defense and civil litigation across the nation. In the white-collar area, I have represented individuals and businesses facing government investigations and indictments, as well as people who were previously found guilty. These matters have involved potential or actual charges for many types of offenses, including health care (such as health care fraud, violating the Anti-Kickback Statute, and misleading or off-label promotion of prescription medications) and public corruption (such as bribery, defrauding federal programs, and violating campaign finance laws). In the civil arena, I have represented individuals and companies, from multinational corporations to startups, in a wide array of complex and sensitive matters. Among other things, I have won several significant payments from insurance companies and am currently lead counsel for the plaintiffs in several high-stakes lawsuits. I have extensive appellate experience in both criminal and civil cases, including in the U.S. Supreme Court, six federal courts of appeals, and a number of state appellate courts.

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Much of my recent work has involved representing health care providers and others in the health care industry in regard to investigations and prosecutions by U.S. Attorney's Offices, the U.S. Department of Justice's Fraud Section (including the Medicare Strike Force), the U.S. Department of Health and Human Services' Office of Inspector General, the Defense Criminal Investigative Service of the U.S. Department of Defense's Office of Inspector General, and states' Medicaid Fraud Control Units. 

Some of my current clients include a health care provider who retained me to conduct an internal investigation, a government contractor under investigation for alleged tax fraud and employee benefits offenses, a government official under investigation for an alleged money laundering conspiracy, a physician embroiled in a dispute with a hospital, and a corporation contemplating a constitutional challenge to the application of certain state laws.

A number of my more notable successes have involved obtaining favorable resolutions, without publicity, that remain confidential.  I take on a limited number of matters at a time, which allows me to give each case and each client the extensive and personalized attention they deserve.

I handle matters of all sizes.  For representations that require reviewing large numbers of documents, I collaborate with other law firms.  I have substantial experience with cases involving parallel criminal and civil proceedings and litigation in multiple jurisdictions.

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Before founding The Josh Greenberg Law Firm, I practiced in the D.C. offices of Covington & Burling and Womble Carlyle, clerked for Judge Thomas L. Ambro of the U.S. Court of Appeals for the Third Circuit, graduated with honors from Stanford Law School, and graduated as a member of Phi Beta Kappa from Washington University in St. Louis.

I am admitted to practice in the District of Columbia, Maryland, and a number of federal courts, including the U.S. District Courts for the District of Columbia and Maryland, the U.S. Courts of Appeals for several different Circuits, and the U.S. Supreme Court. I appear pro hac vice in courts where I am not admitted.

I am a member of the Edward Bennett Williams American Inn of Court, an invitation-only professional organization in Washington, D.C. devoted to white-collar criminal practice; the National Association of Criminal Defense Lawyers; the Criminal Procedure & Evidence Committee of the Criminal Justice Section of the American Bar Association (the "ABA"); and the American Society for Pharmacy Law.  In addition, the ABA's Health Law Section chose me to join its leadership for two consecutive years. I am also a Fellow of the American Bar Foundation, an honorary society whose membership is limited to one percent of the lawyers admitted to practice in the United States and its territories.