Nick Cejas is a member of the firm’s award-winning Mass Tort and Catastrophic Loss practice area, a team responsible for many of Missouri’s top ranking defense verdicts. Nick’s main focus is representing major hospitals, doctors, nurses and other professionals facing catastrophic injury and other medical malpractice claims. He also defends clients in premises liability, product liability, insurance and commercial actions.

Experienced in all aspects of litigation, Nick is intricately involved in investigating the facts of a case, developing and implementing litigation strategy, consulting expert witnesses, preparing and responding to discovery, conducting depositions of fact and expert witnesses, and drafting and arguing dispositive motions. For example, he recently was instrumental in obtaining summary judgment on behalf of a large hospital sued for medical battery. He has also been a member of a number of successful trial teams.

As part of his practice, Nick counsels clients on the most appropriate steps to avoid litigation and offers advice on HIPAA compliance and the development of policies governing day-to-day operations. He also has substantial knowledge about electronic discovery.

Health Care
As an important member of the firm’s Health Care group, Nick represents clients in all types of medical malpractice, professional liability, breach of contract and other health care claims.

These cases involve guardianship of incapacitated adult and minor patients; wrongful death; birth trauma; surgical and emergency care; primary care and internal medicine claims; informed consent; medical specialty, such as cardiology, dentistry, ophthalmology, radiology, and neurology; hospital and home-health nursing; nursing home and long-term-care facility issues; slip-and-falls; contract claims; and all other nonmedical premises liability, business disputes and hospital torts.

Products Liability and Tort
Nick aids clients facing both medical and nonmedical products liability and other tort claims. His varied work includes wrongful deaths, auto accidents, accident reconstruction and crash safety, batteries, fraud, negligence, negligent misrepresentation, strict liability, pharmaceutical litigation, and other product performance and failure issues.

Business and Commercial Litigation
Nick represents individuals, small businesses and multinational corporations in a variety of areas, including breach of contract, product development and liability, and wrongful termination claims. His experience also includes representing insurers in matters relating to life, health and casualty insurance policies. As part of his practice, Nick counsels insurers and policyholders about coverage under primary, umbrella and excess policies and vigorously litigates breach of contract, declaratory judgment and bad faith claims.


  • Saint Louis University School of Law  (J.D., magna cum laude, 2013)
    • Order of the Woolsack
    • Saint Louis University Law Journal, Managing Editor, 2012-2013
    • Academic Excellence Awards in Civil Procedure I, Property, Business Associations, Secured Transactions, and Pre-Trial Litigation
  • Saint Louis University  (B.S., summa cum laude, 2010)
    • Business Administration


  • Missouri
  • Illinois
  • Kansas
  • U.S. District Court, Eastern District of Missouri

Charitable and Civic Involvement

  • Rebuilding Together St. Louis, Young Friends Group (President, Steering Committee)


  • The Best Lawyers in America® Ones to Watch, Criminal Defense: White Collar, Medical Malpractice Law - Plaintiffs (2021-present), Product Liability Litigation - Defendants (2023-present)
  • Missouri/Kansas Super Lawyers®Rising Star (2018-present)
  • Obtained #3 Defense Verdict in Missouri (2017)


Nick worked at another firm before joining Armstrong Teasdale in 2014. While attending Saint Louis University School of Law, Nick was the managing editor of the Saint Louis University Law Journal and elected to the Order of the Woolsack.

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