Ryan M.DiSantis

Of Counsel

Boston + 1.617.449.6911

Ryan DiSantis served as an Assistant U.S. Attorney (AUSA) in Boston for more than 10 years and has wide-ranging experience in white collar litigation, including matters concerning financial fraud, health care fraud, and public corruption.

As an AUSA, Ryan prosecuted criminal matters involving, among other things, the Foreign Corrupt Practices Act (FCPA), extortion, securities fraud, investment adviser fraud, mortgage fraud, possession of stolen art, tax fraud, aggravated identity theft, identity fraud, obstruction of justice, money laundering, embezzlement, theft of government funds, counterfeiting, federal firearms violation, and false statements. He represented the United States in 11 jury trials (including a five-defendant mortgage fraud trial that lasted approximately two months) and handled eight appeals in the United States Court of Appeals for the First Circuit — arguing on behalf of the government before First Circuit panels in four appeals. Ryan also was the Victim Rights Legal Adviser for the U.S. Attorney's Office in Boston. In this role, he advised AUSAs concerning victim-related legal issues in their cases and was responsible for office training on victim rights.

Prior to joining the U.S. Attorney's Office, Ryan was an associate for more than five years at an AmLaw 25 firm, where he represented clients in significant government enforcement matters, including cases and investigations in the health care industry involving allegations of False Claims Act and Anti-Kickback Statute violations, and in complex civil litigation.


  • Fortune 500 public company assesses its investigation processes and develops enterprise-wide investigations governance structureJones Day is assisting a Fortune 500 public company in a year-long project to assess its investigation processes and develop a new, enterprise-wide investigations governance structure.
  • The following represents experience acquired prior to joining Jones Day.

    Prosecuted criminal cases in Massachusetts District Court, including cases involving school zone drug distribution, breaking and entering, larceny, assault and battery, assault and battery on a police officer, assault and battery with a dangerous weapon, assault with a dangerous weapon, attempt to commit unarmed robbery, and operating under the influence.

    Represented a client charged with structuring financial transactions and another client charged with violations relating to work performed on the Central Artery Tunnel Project (the "Big Dig").

    Represented pharmaceutical companies in criminal heath care fraud investigations involving, among other things, allegations of off-label promotion and kickbacks, as well as multidistrict litigation regarding alleged fraud concerning the average wholesale price of pharmaceutical products.

    Represented mutual fund clients in investigations by a United States Attorney's Office, Offices of State Attorneys General, and the Securities & Exchange Commission involving allegations of late trading and market timing.

    Represented three community hospitals in a False Claims Act case brought by the Civil Division of the United States Department of Justice and successfully moved to dismiss the case.

    Represented a client in removal proceedings before the United State Immigration Court in Boston, Massachusetts. Following a bench trial, the client's application for political asylum and withholding of removal was granted.

    Deposed a director from a closely held corporation and an employee of an accounting firm in a Massachusetts Superior Court action involving breach of fiduciary duty and appraisal claims.