OF COUNSEL | 862-235-1655 |


  • Union College, BA, magna cum laude
  • University of Pennsylvania Law School, JD, cum laude

Peter Katz is Of Counsel to the firm. He is a seasoned litigator who draws on his extensive background in private practice as well as federal and state prosecutorial experience. Peter focuses his practice on white collar criminal matters. He represents whistleblowers related to all types of government fraud, with particular attention to the healthcare and financial industries. Peter has extensive experience conducting internal investigations and providing monitoring services arising from fraud, waste, abuse and corruption allegations, particularly in the healthcare and financial arenas.

Prior to joining Calcagni & Kanefsky, Peter was a partner with a boutique criminal defense firm, representing clients in the areas of healthcare fraud and financial fraud, including securities, bank, mortgage, wire and mail fraud. Before moving to private practice, Peter served as a trial attorney at the U.S. Department of Justice Fraud Section, where he focused on complex white collar cases and supervised teams on the Health Care Fraud Strike Force.

Peter served for nearly a decade as an Assistant U.S. Attorney for both the District of New Jersey and the Eastern District of New York. He led investigations and prosecutions related to health care, bank, tax, wire, mail and insurance fraud, money laundering, bank robbery, narcotics and weapons trafficking conspiracies, as well as RICO, capital murder, public corruption and obstruction of justice.

Peter began his legal career as an Assistant D.A. with the Manhattan District Attorney’s Office. For eight years, he handled varied prosecutions with the Homicide Investigation Unit and the Asian Gang Unit.

Peter was also Director of Criminal Justice at the Laura and John Arnold Foundation, where he led efforts to develop and implement strategies to improve the United States criminal justice system. Peter vetted and managed dozens of grants valued at over $20 million in an effort to improve public safety, increase fairness and lower costs within the criminal justice system. Peter has also served as a Managing Director at the Berkeley Research Group, where he provided strategic litigation support advice to various public and private clients. He led investigations into complex healthcare and financial fraud schemes, and developed and evaluated compliance programs.

Peter is a frequent lecturer and author on his practice specialties, notably in the areas of health care compliance, government investigations, and state and federal enforcement. He maintains an adjunct professor appointment at both Rutgers Law School – Camden, and at Rider University. He teaches upper-level courses on Health Care Fraud and Abuse, White Collar and Corporate Crime, Criminal Justice and Rights of the Accused.

Peter is a member of the American Bar Association, the American Health Lawyers Association, Taxpayers Against Fraud, the Eastern District of New York Alumni Association, the District of New Jersey Alumni Association, and is a Hogan-Morgenthau Associate.

Peter graduated cum laude from the University of Pennsylvania Law School, where he was a Senior Editor for the Comparative Labor Law Journal and a Member of the Counsel of Student Representatives. He received his B.A., magna cum laude, from Union College, where the was inducted into Phi Beta Kappa, included on the Dean’s List, and was a member of the Varsity Golf Team.

Peter is admitted to practice law in New York, the Eastern District of New York, the Southern District of New York, and the Court of Appeals for the Second Circuit.