Mark W. Tanner

Mark W. Tanner: Dedicated Legal Counsel for Medical Negligence and Bad Faith Claims

Mark W. Tanner is a highly respected and accomplished Philadelphia personal injury lawyer dedicated to advocating for individuals harmed by medical negligence, insurance bad faith, and other serious legal issues. With a proven track record of securing significant verdicts and settlements, Mark brings a wealth of experience and a deeply compassionate approach to every case. He is widely recognized for his strategic litigation skills, his unwavering commitment to his clients, and his relentless pursuit of justice.

Mark’s career has been defined by a consistent ability to achieve exceptional outcomes, including a landmark $22.4 million verdict for a victim of a negligently executed spine surgery – one of the largest medical malpractice verdicts ever awarded in Pennsylvania. Furthermore, he secured a remarkable $7.9 million jury verdict against an insurance company alleging bad faith, believed to be the largest such verdict in the state. These victories demonstrate Mark’s expertise in complex litigation and his ability to effectively represent clients facing significant challenges.

Recognized Expertise & Leadership

Mark’s dedication to the legal profession has been consistently recognized, earning him numerous accolades and prestigious positions. He has been named one of the Top 10 Super Lawyers in Pennsylvania for seven consecutive years (2007-2017) by Thomson Reuters, a testament to his sustained excellence. He holds the distinction of being a Fellow of the International Academy of Trial Lawyers, a highly selective honor reserved for only 500 of the nation’s most accomplished trial attorneys. He served as the former President of the Philadelphia Trial Lawyers Association (2007-2008) and received the organization’s President’s Award in 2005. In 2016, he was appointed as a hearing committee member serving the disciplinary board of the Supreme Court of Pennsylvania, demonstrating his commitment to upholding the highest standards of the legal profession. Mark was also named a Top 100 Trial Attorney in the Civil Plaintiff category by the National Trial Lawyers in 2016.

Areas of Practice

Mark W. Tanner’s practice is focused on providing expert legal representation to victims of:

• Medical Malpractice Law – Plaintiffs: He specializes in investigating and pursuing claims arising from negligent medical care, surgical errors, misdiagnosis, medication errors, birth injuries, and other forms of medical negligence.
• Personal Injury Litigation – Plaintiffs: Mark handles a wide range of personal injury cases, including car accidents, truck accidents, motorcycle accidents, slip and fall accidents, and wrongful death claims.
• Insurance Bad Faith Claims: He aggressively advocates for clients who have been unfairly denied coverage or treated unfairly by insurance companies, navigating complex insurance regulations and litigation procedures.
• Mass Tort Litigation / Class Actions – Plaintiffs: Mark has extensive experience representing plaintiffs in large-scale litigation involving products liability and pharmaceutical claims.
• Disability Insurance Claims: He assists individuals in challenging denied disability insurance benefits claims.
• Civil Rights Claims: Mark provides legal representation to clients alleging violations of their civil rights.

Education and Credentials

• Temple University Beasley School of Law, J.D. *Cum Laude*
• College of the Holy Cross, B.A. in English Literature
• Licensed to Practice: Pennsylvania, U.S. District Court for the Eastern District of Pennsylvania, U.S. District Court for the Middle District of Pennsylvania, U.S. Court of Appeals for the Third Circuit, and the Supreme Court of the United States
• Fellow - International Academy of Trial Lawyers (2006)
• Eddie Ohlbaum Distinguished Advocate for Children Award - Support Center for Child Advocates (2016)
• President’s Award - Philadelphia Trial Lawyers Association (2005)

Beyond the Courtroom

Mark is not only a skilled litigator but also a dedicated member of the Philadelphia community. He is a passionate pro bono activist, representing underprivileged and neglected children as a child advocate for the non-profit Support Center for Child Advocates, where he has also served on the board of directors. His commitment to social justice extends beyond his legal work, as evidenced by his frequent lecturing engagements – he has participated in more than 50 continuing legal education programs and has taught trial advocacy to law students and graduate LL.M. students at local area law schools throughout the United States and, by invitation, to barristers in London. Outside of the courtroom, Mark enjoys a variety of activities, including travel, hunting, fishing, scuba diving, and, despite a persistent challenge, perfecting his golf game.

Contact Mark W. Tanner Today

If you or a loved one has been injured due to the negligence of another, or if you believe you’ve been treated unfairly by an insurance company, contact Mark W. Tanner today. He is dedicated to providing compassionate and effective legal representation to help you achieve the best possible outcome.