Overview

When the situation is dire, the stakes are high, and time is short, clients seek out attorney Jimmy Oh to quickly get up to speed and spring into action.

On many occasions throughout his legal career, Jimmy has been called upon to be the face of the company in various geographies on different subject matters in myriad forums. As the examples in the Experience section below illustrate, Jimmy has delivered for his clients in high-pressure, exigent circumstances.

At Epstein Becker Green, Jimmy’s work traverses all three of the firm’s core practices: Employment, Labor & Workforce Management; Health Care & Life Sciences; and Litigation & Business Disputes. Jimmy has tried and handled high-stakes litigation in federal courts around the country involving administrative law and regulatory action (or inaction), business disputes, and employment law. 

Jimmy holds leadership roles on Epstein Becker Green’s Diversity & Professional Development Committee and serves on the Executive Committee of the firm’s Minority Attorney Forum.

In addition, Jimmy has published numerous articles and made presentations on a variety of topics. He is a graduate of Northwestern University Pritzker School of Law and Northwestern University.

Focus Areas

Experience

  • Quickly filed a lawsuit after initial retention against the U.S. Department of Health and Human Services (HHS) and the Health Resources Services Administration on behalf of a critical-access hospital. A week after filing and after an evidentiary hearing, Jimmy obtained injunctive relief that saved the hospital from being removed from the 340B prescription drug program, which was critical to funding the ongoing operations of the hospital.
  • Filed suit against HHS and the Centers for Medicare & Medicaid Services (CMS) after CMS miscalculated a Medicare Advantage plan’s Star Rating, which deprived the plan of an eight-figure quality bonus.
  • Led a team that filed a lawsuit on behalf of a company against the State of California in federal court seeking a declaratory judgment that California vacation pay law was preempted by the Employee Retirement Income Security Act (ERISA). The suit resulted in a consent decree that required California to recognize the company’s paid time off plan as an ERISA plan and that California law is preempted.
  • Led a team that sued the State of Wisconsin after an administrative law judge awarded short-term disability (STD) benefits to a non-disabled employee in contravention of STD plan documents that were governed by ERISA. The court granted a preliminary injunction against the State of Wisconsin, which the court of appeals affirmed.
  • First-chaired a class action trial in federal court in Columbus, Ohio, and, after winning at the trial court level, was affirmed by the U.S. Court of Appeals for the Sixth Circuit.
  • Was brought in as first-chair trial counsel—60 days before trial was to begin—to handle the trial of a certified class action in federal court in Brooklyn. Jimmy immediately identified critical evidence not previously produced in discovery and presented that evidence to a mock jury. Based on how the mock jurors reacted to the evidence, Jimmy proffered the evidence to the plaintiffs’ counsel, which led the plaintiffs to capitulate at a pre-trial mediation and accept a settlement that was one-fifth of a demand they had previously refused to waiver from.
  • After prior counsel was handed an adverse jury verdict in the eight figures, was brought in to first chair the retrial. The case settled after opening statements for one-third of what the previous jury had awarded.

Recognition

  • Chambers USA: The World's Leading Lawyers for Business: Illinois—Labor & Employment, "Leader in Their Field" (2022 to 2024)
  • The Best Lawyers in America©: Employment Law—Management (2015 to 2025)
  • Illinois Super Lawyers: Employment & Labor (2005 to 2013, 2015 to 2025)
  • The Legal 500 United States: Workplace and Employment Counseling (2020, 2021); Labor and Employment Disputes (Including Collective Actions): Defense (2021)
  • Lawyers of Color: “Nation’s Best” (2019)
  • Diversity & the Bar Magazine: “Rainmaker” (2016)
  • Martindale-Hubbell®: Rated “AV Preeminent” 

Credentials

Education

  • Northwestern University School of Law (J.D., 1987)
  • Northwestern University (B.A., 1984)

Bar Admissions

  • Illinois

Court Admissions

  • Illinois Supreme Court
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. Court of Appeals for the Seventh Circuit
  • U.S. Court of Appeals for the Sixth Circuit
  • U.S. District Court, Central District of Illinois
  • U.S. District Court, Eastern District of Michigan
  • U.S. District Court, Northern District of Illinois

Professional & Community Involvement

  • American Bar Association, Labor and Employment Law Section

Media

Events

Insights

Insights

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