Kellie Mazzarella is a trial lawyer who defends clients in claims involving personal injury and property damage. She has secured several defense verdicts at trial involving personal injury matters. Kellie also concentrates her practice on defending hospitals, physicians, and health care institutions in professional liability lawsuits. She also represents physicians in investigations conducted by the Illinois Department of Financial and Professional Regulation. Kellie has extensive experience in all stages of litigation, from pre-suit investigation through trial. She is licensed to practice in Florida, Illinois, and Indiana.

During law school, Kellie served as a judicial extern for the Honorable William Bauer, United States Court of Appeals for the Seventh Circuit, and the Honorable Sharon Johnson Coleman, United States District Court for the Northern District of Illinois.

Professional Affiliations

  • Chicago Bar Association
  • Justinian Society of Lawyers

Honors & Awards

  • Professional
    • Selected by her peers for inclusion in Best Lawyers: Ones to Watch for Medical Malpractice Law – Defendants, 2021 – 2024; and Personal Injury Litigation – Defendants, 2021 – 2024
    • Recognized on the Rising Stars list by Illinois Super Lawyers magazine, 2021 – 2024
  • Academic
    • The John Marshall Law School (now known as the University of Illinois Chicago School of Law)
      • CALI Award for the highest grade in "Labor Law"
      • Dean's List
      • Graduated in the top 7% of her class
      • Distinguished Scholar


  • Co-Presenter, "The HITECH Act Unencrypted: An Overview of the HITECH: An Overview of the HITECH Act and its Impact on the Receipt, Transmission, Creation, and Maintenance of Protected Health Information," Illinois Paralegal Association's Fall Education Conference, Virtual Event, November 5, 2020

J.D., with honors, University of Illinois Chicago School of Law, 2014

B.S., with honors, The University of Iowa, 2010