Jack has extensive experience in the general representation of associations, antitrust counseling, health care regulatory issues, copyright, trademark and trade secret matters, and FDA regulation. He has represented numerous clients in government antitrust and health fraud investigations, in actions brought by the U.S. Department of Justice and the Federal Trade Commission, in private antitrust litigation, and in copyright, trademark, and trade secret cases.

Some of the nation’s leading professional associations turn to Jack for his counsel, including the American Medical Association, American Dental Association, American Osteopathic Association, National Association of REALTORS®, Federation of State Medical Boards, American Board of Medical Specialties, American Academy of Periodontology, American Association of Endodontists, American Health Information Management Association, College of American Pathologists, and Greater Las Vegas Association of REALTORS®. He also advises several medical and dental certifying boards, such as the American Board of Dermatology, American Board of Emergency Medicine, and American Board of Periodontology. He also represents a number of accreditation organizations, including the Liaison Committee on Medical Education, ARC-PA, and CoARC.

Jack teaches courses on health law and food and drug law at the University of Chicago. He also teaches federal regulation of pharmaceuticals and medical devices in the MSL program at Northwestern. He is a frequent speaker on antitrust, association law, and health care regulatory issues at industry and university conferences, and has written many articles on these topics.

  • Experience

    • Jack has successfully represented the American Medical Association and the American Dental Association in cases challenging the copyright in their works of nomenclature.
    • He has won several victories for real estate associations in antitrust challenges to their policies on access to their multiple listing services.
    • His clients have prevailed in several high-profile defamation actions.
  • Credentials


    • Harvard Law School, J.D., 1972
    • Brandeis University, A.B., History, 1968
      Phi Beta Kappa

    Bar Admissions

    • Illinois
    • U.S. Supreme Court
    • U.S. Court of Appeals for the First Circuit
    • U.S. Court of Appeals for the Second Circuit
    • U.S. Court of Appeals for the Third Circuit
    • U.S. Court of Appeals for the Fifth Circuit
    • U.S. Court of Appeals for the Sixth Circuit
    • U.S. Court of Appeals for the Seventh Circuit
    • U.S. Court of Appeals for the Eighth Circuit
    • U.S. Court of Appeals for the Ninth Circuit
    • U.S. Court of Appeals for the Eleventh Circuit
    • U.S. Court of Appeals for the District of Columbia Circuit
    • U.S. District Court for the Northern District of Illinois (Trial Bar)

        Professional Memberships

        • Illinois Association of Healthcare Attorneys, Member and Former President
        • American Society of Association Executives, Legal Section, Member and Former Chair of Legal Section Council
        • American Bar Association
        • Chicago Bar Association,  former Member of Board of Governors

        Teaching Appointments

        • University of Chicago Law School (Health Law and Policy, Food and Drug Law and Policy)
        • University of Chicago, Harris School of Public Policy (Health Law and Policy, Food and Drug Law and Policy)
        • Northwestern University School of Law, Masters of Science in Law Program (Federal Regulation of Pharmaceuticals, Medical Devices, and Biologics)
      • Insights

        News Release

        2020 Best Lawyers in America Lists Recognizes 63 Attorneys, Three “Lawyers of the Year”

        Schiff Hardin LLP is pleased to announce that 63 attorneys have been included in the 2020 edition of The Best Lawyers in America, with three attorneys also being named a “Lawyer of the Year” in their respective areas of practice.

        News Release

        Chambers USA 2019 Ranks 23 Attorneys, Four Practice Areas

        Schiff Hardin is pleased to announce that four practice areas and 23 attorneys have been recognized in the 2019 edition of Chambers USA, a leading legal industry ranking.

        News Release

        Schiff Hardin Adds Seasoned Antitrust Lawyer Jack Bierig

        Schiff Hardin LLP announced today that Jack Bierig has joined the firm as counsel in the Litigation and Dispute Resolution Practice Group in Chicago.


        • Jack has written numerous articles for various publications, including Antitrust Health Care Chronicle, The Health Lawyer, Pathologist, American Bar Association Journal, Loyola Law Journal, and the St. Louis University Law Journal. He contributed a chapter, "Antitrust for Physicians," for the Physician’s Survival Guide, jointly published by the American Medical Association and the National Health Lawyers Association.

        Speeches & Presentations

        • Jack is a frequent speaker on antitrust, association law, and health care regulatory topics at industry and university conferences.
      • Citizenship

        Pro Bono Activities

        • Center for Conflict Resolution (Founder and Past President)
        • Jewish Vocational Service (Past President)
        • Selfhelp Home (Board Member)

        Civic and Charitable Memberships

        • University of Chicago, Institute for Molecular Engineering, Vice Chair of the Advisory Committee
        • Standard Club (Secretary)