Partner

David K. Duffey

Biography
Credentials
Experience

Biography

David Duffey concentrates his practice on professional negligence work and the defense of medical providers, groups and hospitals from pre-suit investigation through trial and appeal. Additionally, he represents clients in general tort and premises liability matters and has extensive experience in defending clients in all stages of litigation. He joined the firm in 2015 following two years at a Chicago litigation firm. Since joining the firm, he has been recognized as a Best Lawyers®: Ones to Watch, an Illinois Rising Star, and an Emerging Lawyer based on excellence and peer recognition from other attorneys in Illinois.

Mr. Duffey graduated from Loyola University Chicago School of Law where he received the Joan Marie Corboy Scholarship for Achievement in Advocacy and participated in Loyola’s Moot Court program. He currently serves as one of the coaches for the Honors Appellate Advocacy Program. Prior to law school, he earned his undergraduate and graduate degrees from the University of Notre Dame.

Credentials

Education

  • J.D., Loyola University Chicago, cum laude, 2012
  • M.Ed., University of Notre Dame, 2009
  • BA., University of Notre Dame, 2007

Awards

  • Leading Lawyer – Emerging Lawyer
  • Illinois Super Lawyer – Rising Star (2017-2021)
  • Best Lawyers: Ones to Watch (2021)
    • Medical Malpractice Law-Defendants
    • Personal Injury Litigation-Defendants
  • Best Lawyers: Ones to Watch (2022)
    • Medical Malpractice Law-Defendants
    • Personal Injury Litigation-Defendants
  • Best Lawyers: Ones to Watch (2023)
    • Legal Malpractice Law
    • Medical Malpractice Law-Defendants
    • Personal Injury Litigation-Defendants

Affiliations

  • Illinois, 2012
  • U.S. Disctrict Court for the Northern District of Illinois, 2015

Presentations

  • Anatomy of a Medical Malpractice Trial, Chicago Bar Association

Experience

DBMS Obtains a Defense Verdict in Lake County

November 20, 2024 Client:

Physician and Medical Group

Outcome:

Defense Verdict.

On November 20, 2024, a Lake County jury returned a defense verdict in favor of a surgeon and his surgical practice represented by David Duffey and Connor Whitting. The patient was ...

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DBMS Obtains a Not Guilty Verdict in Cook County

July 22, 2024 Client:

Hospital

Outcome:

Defense Verdict.

On July 22, 2024, DBMS attorneys David Duffey, Mark Burden, and Mason Kienzle received a not guilty verdict in a medical malpractice case in Cook County.  DBMS’ attorneys represented a ...

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In the news

DBMS Partner David K. Duffey Has Been Named to Law Bulletin Media’s “40 Under Forty” List

Each year since 2000, the Law Bulletin Publishing Company has recognized 40 attorneys in the state of Illinois, under the ...

Four DBMS Attorneys Recognized as Best Lawyers®: Ones to Watch in 2025

Donohue Brown Mathewson & Smyth is proud to announce that six of the firm’s attorneys have been included in Best ...