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Stephen A. Ryan

Senior Counsel
Chair, Birth and Catastrophic Injury Litigation Practice Group; Chair, Medical Device and Pharmaceutical Liability Practice Group
620 Freedom Business Center
Suite 300
King of Prussia, PA 19406
(610) 354-8254
(610) 354-8299 - Fax

As of a member of the Health Care Department, Steve serves as chair of the Medical Device and Pharmaceutical Practice Group and the Birth and Catastrophic Injury Litigation Practice Group. He has 40 years of medical malpractice litigation experience and has tried more than 220 major medical malpractice cases to verdict and participated in many arbitrations and mediations. In his first year with Marshall Dennehey, Steve picked 23 juries and tried 13 medical malpractice cases to verdict, all but one for the defense.

In 2002, The United States Supreme Court upheld Steve's victory in Pappas v. U.S. Healthcare, 724 A.2d 889 (Pa. 1998) (Pappas I) 768 A.2d 1069 (Pa. 2001) (Pappas II), a landmark case involving liability of managed care organizations for medical decisions.

Steve defends drug and medical device manufacturers and monitors these cases and all birth injury defense cases firmwide. Steve also participates in marketing activities and in-house educational seminars, writes articles and speaks on recent developments in the law.  

After serving as a law clerk to the Honorable Joseph L. McGlynn, Jr., in the U.S. District Court for the Eastern District of Pennsylvania following graduation, Steve joined a small defense firm where he focused on medical malpractice defense litigation. He helped grow the firm to more than 100 lawyers and, over the next 14 years, became a member of the firm's executive committee. During his tenure at that firm, he handled long-term care litigation, medical device and pharmaceutical liability litigation, professional liability insurance coverage, medical staff and peer review matters, and bio-ethical issues. His malpractice defense caseload evolved into catastrophic injury cases (obstetrical, neonatal, neurosurgical, neurological and anesthesia complications, etc.), and he handled celebrated cases involving surgical mix-ups, crossed oxygen and nitrous oxide ER lines, a baby stolen from a hospital and "Lazarus Syndrome." During this time, Steve developed his skills defending cases involving neurologically impaired infants.

In 1992, Steve established his own boutique firm in suburban Philadelphia and then brought his practice to Marshall Dennehey in 1997.

Steve has served as local and national counsel in mass tort drug litigation, including PPA (Phenylpropanolamine), hormone therapy and the Ephedra multi-district litigation. He serves as regional birth and catastrophic injury panel counsel for a major insurer. Steve has completed coursework in basic and advanced mediation techniques, was a part of the Drexel University College of Medicine's inaugural panel of mediators and serves regularly as a mediator in medical malpractice cases.

Significant Representative Matters

  • Successfully defended hospital in case involving patient who coded in E.D., was resuscitated for 32 minutes with no pulse or respirations, was pronounced dead, and a half an hour later, a morgue tech found patient had come back to life and was breathing. 

  • Defended defunct manufacturer of Ephedra containing dietary supplement (whose only asset was a multi-million dollar insurance policy) in a trial in Gainesville, Florida, on a cause brought by a severely disabled young man who suffered a massive stroke, allegedly due to ingestion of our product. Primary defense was on causation, but obtained a no negligence finding as well. 

  • Defended hospital in 17 death cases arising from the crossing of nitrous oxide and oxygen lines in a new emergency department, whereby oxygen outlets delivered nitrous oxide for six months. Worked for two years to create a consensus among multiple defendants as to case values and allocation. Managed to settle all 17 without any discovery being conducted by Plaintiffs, for a total of $2 million, of which hospital paid 31 percent. 

  • Defended hospital in case involving late night vaginal delivery by a resident of a breech presentation of a presumably non­viable gestation, where attending physician did not come in to deliver baby, and child was born alive and survived with global retardation, blindness, spastic quadriplegia and seizure disorder. Parents rejected multi-million dollar offer, and jury returned defense verdict after two days of deliberations. 

  • Defended hospital in case alleging failure to transfer to appropriate tertiary facility for rapid decompression of epidural spinal abscess. HMO had refused to authorize transfer to regional spinal cord injury center and, when joined by hospital as additional defendant, invoked ERISA preemption to dismiss joinder at trial. Settled case for hospital, preserving appellate issue, and obtained reversal in Pennsylvania Superior Court. Pennsylvania Supreme Court affirmed and HMO petitioned for Certiorari. Met with U.S. Justice and Labor Department appellate litigators, persuaded them to file Amicus brief in support of our position, and briefed the U.S. Supreme Court in opposition to the petition. U.S. Supreme Court denied Certiorari, letting stand the first state case in the country to recognize that ERISA does not protect "benefit determinations" which amount to negligent medical care decisions. 

  • Defense verdict in Philadelphia case involving 49-year-old man whose cerebral aneurysm was clipped, and the clip slipped, leaving him severely brain damaged and living in a group home with a normal life expectancy and over $10,000 per month in expenses. Interventional cerebrovascular neurosurgeon was sole defendant and his excess carrier was insolvent. Attempts to negotiate a high-low agreement were unsuccessful. Case nominated for Defense Research Institute's "Defense Verdict of the Year." 

  • Defended manufacturer of dietary supplement containing Ephedra in over 60 state and federal cases nationwide involving stroke, myocardial infarction, or sudden cardiac death. Worked with world class medical experts to develop alternate causation theories and presented the Defense Counsel Committee's cardiac electrophysiology expert at the Ephedra MDL Daubert hearing in U.S. District Court, S.D.N.Y. Succeeded in precluding plaintiffs' generic causation experts from opining that Ephedra lengthens the Q-T interval or exacerbates "Long Q-T Syndrome," thereby causing sudden cardiac death. 

Representative Cases

  • Willett v. CAT Fund 

  • Montgomery Hospital v. CAT Fund 

  • Pappas v. U.S. Healthcare 

  • Rigmaiden v. Metropolitan Hospital, et al.

Classes/Seminars Taught

  • Evaluating the Pros and Cons of Mother and Child Genetic Testing – Defense and Plaintiff Perspective, Advanced Forum on Obstetric Malpractice Claims, Philadelphia, PA, June 27, 2019

  • What is Your Case Worth?, Marshall Dennehey Health Care and Health Law Seminar, November 9, 2017

  • Instructor, Delay in Diagnosis of Cancer

  • Malpractice in the ER

  • Defending the Doctor at Deposition

  • HMO Liability

  • Recent Developments in Medical Malpractice

  • Mini-Trial of an HMO Liability Case, ASHRM 2000 New Orleans, Louisiana 

  • Pennsylvania Trial Lawyers Association - Medical Malpractice Trial Techniques Demonstration

  • "Learn from the Masters" Series: Winning Openings and Closings and Winning Direct and Cross, Pennsylvania Bar Institute

  • Medical Professional Liability Coverage and Law, Insurance Society of Philadelphia

  • Open Source Proposal for Drugs will Suppress Invention, Temple Law School National Symposium, 2006

  • Pharmacist Liability, National HealthCare Exposition, Las Vegas, NV, 2006

  • Interactive Long-Term Care Mini-Trial, ASHRM 2006, San Diego, CA

  • Co-presented with Merck's Vioxx Counsel at national summit on Experts and Scientific Evidence in Drug and Medical Device Cases, July 2008

Published Works

  • "Minute With a Member," Pennsylvania Bar News Feature, August 6, 2018

  • "Why I Have White Hair," For The Record, October 2014 (an update on health care documentation and recordkeeping)

  • "Managing the Hospital-Based High Visibility Catastrophic Incident," Pennsylvania Society for Healthcare Risk Management Newsletter 

  • "Pitfalls in Medical Record Documentation," RT Image, Society of Radiologic Technologists magazine 

  • "Claim Based on Doctor's Alleged Guarantee of Result Must Be In Writing," Defense Digest, 1999 

  • "Doctor's Alleged Guarantee of Result Must Be In Writing: Flora v. Moses Provides Sound Reasoning," Pennsylvania Law Weekly, 1999 

  • "Pennsylvania's 'Error In Judgment' Jury Instruction Upheld," Defense Digest, 2000 

  • "Liability of Managed Care Organizations for Negligent Decisions Causing Harm: Will U.S. Supreme Court Speak or Let Congress Decide?," The Specialist, newsletter of the Chartered Property Casualty Underwriters Society, 2001 

  • "ERISA Preemption of Medical Negligence Claims Against HMO's: Perceived Conflict Between Pennsylvania Supreme Court and 3rd Circuit Paves Way for Showdown in U.S. Supreme Court," Journal of Healthcare Risk Management, 2001 

  • "Medical Devices and Double Secret Probation," Defense Digest, 2006 

Pro Bono Activities

  • Captain, Team Marshall Dennehey (American Cancer Society Bikeathon Team) 


  • Villanova University School of Law, Villanova, PA (J.D., 1975)

    Law Review: Editorial Board, Villanova Law Review

  • Villanova University, Villanova, PA (B.A., 1972)

    Major: Political Science 

Articles October 1, 2014
Defense Digest Article September 1, 2010
To be a superior defender of drug and medical device liability cases requires a complement of lawyers and paralegals with medical, technical and scientific experience and proficiency, and damn good trial skills. Fortunately, Marshall Dennehey has..., Defense Digest, Vol. 16, No. 3, September 2010
Dec 31, 2018
We received a defense verdict on no causation in a binding arbitration of a matter venued in Montour County, Pennsylvania, involving a bowel leak following urologic cancer surgery. We represented a Pennsylvania health system and its chief of urology...
November 18, 2019
Stephen A. Ryan, longtime shareholder and practice group chair in the Health Care Department at Marshall Dennehey Warner Coleman & Goggin, was inducted as a Fellow into the College of Physicians of Philadelphia (the College) on Friday, November 15th. The nation’s oldest medical society, the...
October 2, 2018
Class Action & The Marshall Dennehey Horns, the in-house rock-and-roll band at Marshall Dennehey Warner Coleman & Goggin, will compete at the 3rd Annual Law Rocks Philadelphia event on October 18 at the World Café Live to raise money for the Philadelphia Bar Foundation. Law Rocks is a...
August 15, 2018
Two Marshall Dennehey attorneys have been selected 2019 "Lawyers of the Year" for specific practice and demographic areas by The Best Lawyers in America©. Best Lawyers began designating "Lawyers of the Year" in high-profile legal practice areas in 2009. Only a single lawyer in each legal practice...
August 15, 2016
Two Marshall Dennehey attorneys have been selected by Best Lawyers in America© as 2017 "Lawyers of the Year" for specific practice and demographic areas. Timothy J. McMahon, Esquire, shareholder and managing attorney of the Harrisburg office of Marshall Dennehey Warner Coleman & Goggin, has...
August 16, 2013
"Class Action," the in-house rock and roll band at Marshall Dennehey Warner Coleman & Goggin, will perform in the final round of the 13th Annual Fortune Battle of the Corporate Bands competition, to take place September 28th at the Rock and Roll Hall of Fame and Museum in Cleveland, Ohio. After...
June 14, 2013
Marshall Dennehey is pleased to announce that four of the firm's shareholders have been selected as 2013 "Best Lawyers of the Year" by Best Lawyers in America©. They are: Dennis J. Roman, Pittsburgh, for Legal Malpractice Law - Defendants; Stephen A. Ryan, King of Prussia, for Medical Malpractice...
October 1, 2011
Steve Ryan (King of Prussia, PA) presented at the National Account Review Meeting for the American College of Nurse Midwifery (ACNM) Insurance Program at Chartis Insurance Company.  His presentation, "Midwifery and Medical Malpractice," was attended by Chartis claims, underwriting and risk...
Seminar Jun 26, 2019
Stephen Ryan, chair of the firm’s Birth and Catastrophic Injury Litigation Practice Group, is the co-chair and a presenter at the upcoming 18th Annual Advanced Forum on Obstetric Malpractice Claims Conference. In “Evaluating the Pros and...


  • Villanova University School of Law (J.D., 1975)
  • Villanova University (A.B., 1972)

Bar Admissions

  • Pennsylvania, 1975
  • U.S. District Court Eastern District of Pennsylvania, 1975
  • U.S. Court of Appeals 3rd Circuit, 1982
  • U.S. Supreme Court, 2002

Associations & Memberships

  • American Society for Healthcare Risk Management
  • Defense Research Institute
  • Pennsylvania Bar Association Philadelphia Bar Association; Chairman, Medico-Legal Committee, 1985

Honors & Awards

Year Joined Organization: 1997

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