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 (ELWM); Health Care & Life Sciences (HCLS); and Litigation & Business Disputes. Jimmy has tried single-plaintiff and class action cases in federal courts around the country alleging violations of trade secret laws and/or non-competes, wage and hour laws, Title VII of the Civil Rights Act of 1964, the Americans with Disabilities Act, the Age Discrimination in Employment Act, and the Employee Retirement Income Security Act (ERISA). He has also represented clients in health care litigation involving the Medicare, Medicaid, and 340B prescription drug programs.
Jimmy is a member of Epstein Becker Green’s ELWM Steering Committee, Health Employment and Labor (HEAL®) strategic industry group (which consists of members of both the ELWM and HCLS practices), and Litigation & Business Disputes practice. He also holds leadership roles on the firm’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
Services
- ADA and Public Accommodations
- Business Torts, Competition & Trade Secrets
- Class Actions
- Commercial and Contract Litigation
- Employment Litigation
- Employment, Labor & Workforce Management
- ERISA – Retirement and Benefit Plan Litigation
- Health Care Litigation
- Trade Secrets & Employee Mobility
- Wage and Hour
Industries
Experience
- Filed a lawsuit, quickly after Jimmy’s 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, and, a week later, after an evidentiary hearing, obtained injunctive relief that saved the hospital from being kicked out of the 340B prescription drug program, which was critical to funding the ongoing operations of the hospital.
- Acted as lead trial counsel in winning a collective and class action trial in federal court in Columbus, Ohio, and was affirmed by the U.S. Court of Appeals for the Sixth Circuit. Had the company lost, it would have had to reclassify hundreds of employees from exempt to non-exempt and owed millions in back overtime pay, and the loss would have reverberated throughout the insurance industry.
- Brought in as first chair trial counsel to handle a certified class action in federal court in Brooklyn after discovery closed, summary judgment was denied, and 60 days before the trial was to begin. 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.
- Was retained to first-chair the retrial of a case that had resulted in the largest employment law verdict ever awarded in the State of Ohio. After opening statements, the case settled for one-third of what the previous jury had awarded.
- 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.
- Retained by a Medicare Advantage plan client to sue HHS and the Centers for Medicare & Medicaid Services (CMS) after CMS miscalculated its Star Rating, which deprived the plan of an eight-figure quality bonus.
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 2024)
- 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
Past Events
- November 9-12, 2023
- November 3, 2022
Insights
Insights
- Firm Announcements
Epstein Becker Green Attorneys Honored for Excellence in the Legal Profession by Best Lawyers 2025
14 minute read - Firm Announcements
Epstein Becker Green Honored for Exceptional Performance in Key Practice Areas by Chambers USA 2024
5 minute read - Firm Announcements
Five Epstein Becker Green Attorneys Named to the 2024 Illinois Super Lawyers and Rising Stars Lists
3 minute read - Firm Announcements
Epstein Becker Green Attorneys Recognized by 2024 Best Lawyers for Excellence in the Legal Profession
12 minute read - Media CoverageJames Oh Quoted in "Employer Not Liable for Allegedly Spreading COVID-19 to Employee’s Wife"2 minute read
- Firm Announcements
Epstein Becker Green Recognized for Focused Excellence Across Core Practice Areas in Chambers USA 2023
5 minute read - PublicationsDon’t Panic. Or Don’t Get Your Hopes Up: The FTC’s Proposed Rule Banning Non-Competes May or May Not Go into Effect ...2 minute read
- Firm Announcements
Five Epstein Becker Green Attorneys Named to the 2023 Illinois Super Lawyers and Rising Stars Lists
3 minute read - Firm Announcements
Epstein Becker Green Attorneys Recognized by 2023 Best Lawyers for Excellence in the Legal Profession
11 minute read - Firm AnnouncementsChambers USA 2022 Recognizes Epstein Becker Green's Focused Excellence in Core Practice Areas: Distinguished in ...4 minute read
- Firm Announcements
Four Attorneys Named to the 2022 Illinois Super Lawyers and Rising Stars Lists
3 minute read - Firm AnnouncementsFifty-Eight Epstein Becker Green Attorneys Recognized for Professional Excellence–Three Attorneys Distinguished as ...7 minute read
- Firm Announcements
Epstein Becker Green Receives High Rankings for Health Care and Workforce Management Practices in 2021 Edition of The Legal ...
3 minute read - BlogsIllinois Lawmakers Pass Numerous Bills Affecting Employers7 minute read
- BlogsIllinois State Legislators Authorize Increased Wage Theft Penalties3 minute read
- Firm Announcements
Five Epstein Becker Green Attorneys Named to 2021 Illinois Super Lawyers and Rising Stars Lists
3 minute read - Firm Announcements
Corporate Counsel Select Three Epstein Becker Green Attorneys as 2020 BTI Client Service All-Stars
2 minute read - PublicationsIndustry Voices—Employment Litigation Risks Due to the Pandemic That Healthcare Employers Should Know1 minute read
- Firm AnnouncementsFifty-Five Epstein Becker Green Attorneys Recognized for Professional Excellence–Two Attorneys Distinguished as ...7 minute read
- Firm AnnouncementsThe Legal 500 United States Recognizes Epstein Becker Green as Top-Tier Law Firm in Health Care and Workforce Management ...4 minute read
- PublicationsINSIGHT: Inoculating Against Covid-19 Related Wage and Hour Class Litigation2 minute read
- BlogsInoculating Against Wage and Hour Class Litigation Related to COVID-195 minute read
- Firm Announcements
Four Epstein Becker Green Attorneys Named to 2020 Illinois Super Lawyers and Rising Stars Lists
3 minute read - Media CoverageJames Oh Interviewed on WGN Radio's Roe Conn Show on Marijuana in the Workplace4 minute read
- Firm Announcements
Epstein Becker Green’s James Oh Honored in Crain's 2019 Notable Minorities in Accounting, Consulting & Law
2 minute read - Firm AnnouncementsEpstein Becker Green Awards Three 2019 Core Values Champions3 minute read
- PublicationsPreparing for Legal Recreational Marijuana: The Illinois Example1 minute read
- Media CoverageJames Oh, Kathleen Barrett Quoted in "Can I Get Fired for Using Marijuana? Your Legal Weed Questions Answered"2 minute read
- Media CoverageLaw360's Hottest Firms and Stories Features Cannabis Transaction Article by Epstein Becker Green Attorneys2 minute read
- Publications8 Best Practices for Cannabis Transaction Due Diligence1 minute read
- Media CoverageEpstein Becker Green’s Clifford Barnes and James Oh Featured in "Nation’s Best" Lawyers of Color Journal3 minute read
- PublicationsThe Elephant Is in the Room and Her Name Is Mary Jane3 minute read
- BlogsEmployer Insights: Illinois’ Permanent Commitment To Medical Marijuana5 minute read
- Firm Announcements
Forty-Seven Epstein Becker Green Attorneys Named by The Best Lawyers in America 2020, One Attorney Distinguished as "Lawyer ...
5 minute read - PublicationsIllinois Cannabis Regulation and Tax Act (Cannabis Act)1 minute read
- Media CoverageJames Oh Quoted in "Central Illinois Employers Prepare for Legal Pot"1 minute read
- Firm AnnouncementsEpstein Becker Green's James Oh Recognized as a "Nation's Best" Honoree by Lawyers of Color2 minute read
- BlogsEmployer Insights: Recreational Marijuana in Illinois6 minute read
- Media CoverageJames Oh Featured in "News and Notes from the Legal Community: Moves"1 minute read
- Firm Announcements
Four Epstein Becker Green Attorneys in Chicago Named to 2019 Super Lawyers List
2 minute read - Media CoverageJames Oh Featured in "Notable Moves & Promotions"1 minute read
- Media CoverageJames Oh Featured in "In the News"1 minute read
- Firm AnnouncementsEpstein Becker Green Welcomes James J. Oh to Its Chicago Office3 minute read
- Media CoverageJames Oh Featured in "Epstein Becker Green Adds Ex-Littler Board Member"2 minute read