Grant B. Gelberg

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PROFILE

Grant B. Gelberg is a nationally recognized trial lawyer whose practice centers on high‑stakes civil litigation, health care matters, and government enforcement and internal investigations. Known for his strategic approach and deep experience navigating complex disputes, he represents individuals, corporations, and large health care organizations facing significant legal and regulatory challenges.

Mr. Gelberg has achieved notable victories across a wide range of matters, including obtaining DOJ declinations in multimillion‑dollar health care False Claims Act investigations, securing an $8.6 million award in an investment arbitration, defending clients in a range of industries against claims of trade secrets misappropriation, and conducting sensitive internal investigations for Fortune 500 companies. His work spans industries such as health care, financial services, technology, and real estate.

Before entering private practice, Mr. Gelberg served as an Assistant United States Attorney in the Major Frauds Section of the U.S. Attorney’s Office in Los Angeles. As a federal prosecutor, he led large‑scale investigations involving health care fraud, identity theft, financial crimes, and kickback schemes, and worked closely with federal and state agencies as part of the Department of Justice’s Medicare Fraud Strike Force. He also previously served as a Special Agent with the U.S. Department of Health & Human Services, Office of Inspector General, receiving specialized training in federal criminal investigations.

Mr. Gelberg began his legal career clerking for the Honorable Alicemarie Stotler of the U.S. District Court for the Central District of California and the Honorable Pamela Ann Rymer of the U.S. Court of Appeals for the Ninth Circuit. He earned his J.D., cum laude, from the University of Michigan Law School and graduated summa cum laude from the University of California, Los Angeles. He also holds an L.L.M. with First Degree Honors in International Law from the University of Cambridge.

He has been recognized among the 'Best Lawyers in America' for Criminal Defense: White‑Collar and has served in leadership roles with the Los Angeles County Bar Association, the California State Bar, and national white collar and health law committees.

Education

  • University of Cambridge, L.L.M. First Degree Honors , International Law
  • University of Michigan Law School, J.D. Cum laude
  • University of California, Los Angeles, B.A. Summa cum laude , Political Science

Representative Cases

In Private Practice:

  • Successfully defended a client in the aviation industry against claims of trade secret misappropriation
  • On behalf of a client in the oil services industry, achieved an across-the-board win against a competitor who had brought a motion for preliminary injunction seeking to shut down operations and bar sales to customers
  • Persuaded the U.S. Department of Justice to close a criminal insider trading investigation without filing charges against the firm’s client
  • Successfully defended a large health care organization in a civil and criminal investigation by the U.S. Department of Justice regarding opioid dispensing practices. DOJ closed its civil and criminal investigation with no charges and no civil action filed
  • Successfully defended a banking executive in a federal criminal investigation into transnational money laundering. DOJ closed its criminal investigation with no charges filed
  • Represented an accounting firm in a tax fraud investigation in which the government declined to bring charges against the firm, its principals, and employees
  • Conducted an internal investigation on behalf of a Fortune 500 company into allegations of employee embezzlement, kickbacks, and accounting improprieties
  • Secured a declination from the United States and eight states in a multi-billion dollar qui tam action involving the prescribing and dispensing of opioids.
  • Following two evidentiary hearings, the court dismissed all charges against a physician in a multi-defendant, $300 million health care fraud prosecution.
  • After a years-long investigation into Medicare Part D billing practices, convinced DOJ to decline a False Claims Act case against one of the country’s largest health care systems.
  • Represented an executive in a federal investigation involving claims of extortion. Through quick action, Mr. Gelberg convinced prosecutors to close the case with no charges brought
  • Represented the Audit Committee of a financial institution and conducted an internal investigation into allegations of misconduct by an officer
  • Conducted an internal investigation of alleged misconduct by an executive at a financial advisory firm
  • Won an $8.6 million arbitration award against Morgan Stanley for churning, unauthorized trading, and FINRA rule violations. The FINRA arbitration panel awarded $2 million in punitive damages and nearly $500,000 in attorneys’ fees and costs after finding that Morgan Stanley engaged in financial elder abuse
  • Successfully defended an investment banker in investigation conducted by Financial Industry Regulatory Authority (FINRA). In response to Mr. Gelberg’s presentation, FINRA closed the matter before formal, public proceedings began
  • Representing health care providers in an anti-kickback investigation
  • Represented an executive at a large pharmaceutical company in a grand jury investigation in which the government declined to prosecute
  • Represented a Fortune 50 company in an unfair business practices case brought by a district attorney’s office
  • Following the settlement of an FCPA investigation, assisted the corporate monitor appointed by the U.S. Department of Justice and the Securities and Exchange Commission (SEC) in conducting a top-to-bottom review of the compliance program at a publicly-traded company
  • Designed and implemented compliance programs for a large financial firm and an oil services company and regularly provided advice on FCPA compliance to a top investment bank
  • Represented a large medical group in a FCA investigation concerning Medicare Advantage risk adjustment practices, convincing DOJ to decline the matter
  • Conducted an internal investigation on behalf of a Fortune 500 company regarding potential employee misconduct.
  • Successfully defended a software executive in a trade secret investigation by DOJ. Prosecutors declined to bring charges and closed its case.

As a Federal Prosecutor:

  • Prosecuted hospice owners, operators, and physicians for billing for patients who were not terminally ill, paying kickbacks, and money laundering
  • Obtained lengthy prison sentence for chiropractor who billed Medicare for millions in procedures he never performed and attempted to thwart an audit by the Office of Inspector General
  • Prosecuted two physicians and a clinic manager charged with operating a decade-long scheme to defraud Medicare
  • Convicted, after a jury trial, the leader of a sophisticated identity theft scheme for using insiders at financial institutions to steal from customer accounts
  • Obtained convictions of the owners of a film post-production company for embezzling taxes and 401(k) contributions withheld from employee paychecks
  • Prosecuted a physician for billing Medicare over $7.5 million for medically unnecessary procedures
  • Led large-scale kickback investigation involving recruitment of Medicare and Medi-Cal beneficiaries living in the Skid Row area of Los Angeles

Clerkships

  • Hon. Alicemarie Stotler - U.S. District Court, Central District of California
  • Hon. Pamela Ann Rymer - U.S. Court of Appeals, Ninth Circuit

Areas Of Practice