
M. Brian O'Connor
Assistant District Attorney

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About me
Passionately defending healthcare providers
Education

Gilmour Academy
1978 - 1982
The Catholic University of America, Columbus School of Law
1986 - 1989J.D. Law
John Carroll University
1982 - 1986B. A. History and Political ScienceActivities and Societies: Dean's List- 4 Year Letterman in Cross Country - 3 Year Letterman in Track & Field
Experience

Allegheny County District Attorney's Office
Jan 1990 - Dec 1994Assistant District Attorney
Baum O’Connor Cullen Chmiel
Jan 1994 - nowMy practice is focused on the defense of physicians, hospitals and nursing homes in medical negligence cases. The physicians include internists, ophthalmologists, orthopedic surgeons, radiologists, oncologists, ENT physicians, podiatrists, optometrists and dentists. I also represent healthcare providers in actions brought by the Pennsylvania State Board of Medicine.A small percentage of my practice is devoted to representing small businesses in the defense of accident cases including elevator accidents and accidental electrocution cases. I have tried cases in courtrooms throughout Central and Western Pennsylvania from Centre County to Lawrence County. I am also admitted to practice in the Federal Court of the Western District and have tried jury trials in the Federal Courts in Erie and Williamsport. In total I have tried to verdict over 50 jury trials in the defense of physicians or businesses. Show less
Shareholder
Apr 2023 - nowShareholder
Jan 1994 - Apr 2023

University of Pittsburgh School of Law
Aug 2017 - Feb 2018Adjunct Professor Of Law
Licenses & Certifications

Admitted to the United States Federal Court in the Middle District of Pennsylvania
Nov 2018
Admitted to the United States Federal Court in the Western District of Pennsylvania
Jan 2005
Admitted to the Bar of the District of Columbia
Jan 1989
Admitted to the Pennsylvania Bar
Pennsylvania Bar AssociationJan 1989
Honors & Awards
- Awarded to M. Brian O'ConnorFellow American College of Trial Lawyers - Mar 2025
- Awarded to M. Brian O'ConnorThe Best Lawyers in America www.bestlawyers.com Aug 2018 Honored for inclusion as selected by peers in the 25th Edition of The Best Lawyers in America for the defense of physicians
- Awarded to M. Brian O'ConnorThe Best Lawyers in America -- Medical Malpractice Law - Defendants Best Lawyers Aug 2016 Honored as one of The Best Lawyers in America in the practice area of Medical Malpractice Law-Defendants since 2016 to the present
- Awarded to M. Brian O'ConnorFellow Allegheny County Academy of Trial Lawyers - Oct 2010
- Awarded to M. Brian O'ConnorPennsylvania Super Lawyer Super Lawyers Jan 2008 Recognized as Pennsylvania Super Lawyer every year since 2008
- Awarded to M. Brian O'ConnorVery High Rating in Both Legal Ability & Ethical Standards Martindale Hubbell 2007
Volunteer Experience
President and Board Member
Issued by Christian Housing, Inc. on Jan 1992
Associated with M. Brian O'Connor
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