John R. Ninosky


    John is a member of the firm's Health Care Department. He concentrates his practice in medical malpractice, representing correctional health care providers, health systems, long term-care facilities, assisted living facilities, physicians, nurses and mental health professionals. John also has extensive experience in handling general liability matters which is a significant asset in defending legal malpractice actions, particularly as they relate to claims against trial counsel. When a legal malpractice claim derives from an underlying medical malpractice or general liability matter, John brings depth and added knowledge to the defense of the matter. He has successfully tried cases to verdict in all three of Pennsylvania's federal courts, and in 12 county courts of common pleas. John has also participated in various types of ADR activities, including arbitrations and mediations, throughout Pennsylvania.

    John partners with his clients to resolve matters as efficiently and effectively as possible. He evaluates each case with an eye toward prompt resolution, whether through ADR or trial. An experienced trial attorney, John assesses the risk of exposure and focuses on developing a persuasive story that is easily understandable for the jury. 

    While attending the Dickinson School of Law, John was a member of the ATLA trial team. He was also an adjunct professor with the Advocacy Program. Prior to law school, John graduated summa cum laude from Indiana University of Pennsylvania. As an undergrad, he participated in varsity baseball and was named a three-time PSAC scholar athlete award winner. John remains active with IUP and has served as the president of the Alumni Association Board of Directors. He was the recipient of the Distinguished Alumni Award for Service in 2018.

    John has been recognized among the Best Lawyers in America since 2018, and has been selected a Best Lawyers “Lawyer of the Year” in the Harrisburg region in both 2022 and 2020. He has additionally been selected a Pennsylvania Super Lawyer numerous times since 2014.  

    As an active member of the legal and civic communities, John is involved in various organizations. He is a member of the Dauphin and Cumberland County Bar associations, the Pennsylvania Defense Institute, and the St. Thomas More Society. John is the former Mayor of Paxtang Borough and past president of the Paxtang Borough Council. He coached youth sports through the Wilhem Paxtang Athletic Association and the St. Margaret Mary Athletic Association for a number of years.

    U.S. District Court Eastern District of Pennsylvania
    U.S. District Court Middle District of Pennsylvania
    U.S. Court of Appeals 3rd Circuit
    U.S. District Court Western District of Pennsylvania
    U.S. Supreme Court
    West Virginia
    U.S. District Court Southern District of West Virginia
    Dickinson School of Law, Penn State University (J.D., 1996)
    Indiana University of Pennsylvania (B.A., summa cum laude, 1993)
    Honors & awards
    The Best Lawyers in America®, Personal Injury Litigation-Defendants; Litigation-Insurance; Harrisburg "Lawyer of the Year" Litigation-Insurance, 2020, 2024
    Pennsylvania Super Lawyers
    2014-2018, 2021-2024
    Pennsylvania Super Lawyers Rising Star
    Associations & memberships
    Cumberland County Bar Association
    Dauphin County Bar Association
    Defense Research Institute
    Pennsylvania Defense Institute
    St. Thomas More Society
    Year joined