John T McMahan, MD

ENT Surgeon – Surgical Complications Expert

Specialties & Experience of this Expert Witness

Additional Information

John T. McMahan, MD, FACS is a board-certified otolaryngologist with over 40 years of clinical and surgical experience. He completed fellowship training in Head and Neck Oncology and has extensive experience across the full spectrum of otolaryngology, including general ENT, rhinology, sinus disease, sleep-related procedures, and complex airway management. Dr. McMahan served on the faculty at Northwestern University and has held multiple clinical and leadership roles in both academic and private practice settings. His career includes comprehensive surgical care, perioperative management, and evaluation of complex diagnostic and treatment decisions in otolaryngology. He has over 20 years of experience as a medical-legal consultant and expert witness, providing services to both plaintiff and defense counsel. His work includes medical record review, case merit assessment, expert report preparation, deposition testimony, and trial consultation. Areas of expertise include standard of care, surgical complications, recurrent laryngeal nerve injury and vocal cord paralysis, airway management, perioperative decision-making, informed consent, and office-based ENT procedures. Dr. McMahan is known for providing objective, evidence-based opinions and for clearly communicating complex medical issues in a manner understandable to attorneys, judges, and juries. He is available for prompt case review and offers efficient preliminary screening to assess case viability prior to full engagement.