Neurosurgeon reviewing medical records as a neurosurgeon and spine surgery expert witness in the USA Neurosurgeon reviewing medical records as a neurosurgeon and spine surgery expert witness in the USA

Dr. J. D. Day, MD, FAANS

Dr. Day works with attorneys involved in medical malpractice, personal injury, wrongful death, and other medically complex matters, representing both plaintiff and defense, by delivering independent, evidence-driven neurosurgical medical analysis. His expertise supports counsel in assessing standards of care, causation, injury mechanisms, and damages in cases involving neurosurgical procedures, spinal surgery, traumatic brain and spinal injury, intracerebral hemorrhage, cerebrovascular disease, delayed diagnosis, brain trauma, brain aneurysm, spine trauma, spine tumor, spinal surgery, meningioma, brain surgery, intracerebral hemorrhage, cauda equina syndrome, brain tumor, pituitary tumor, acoustic neuroma, trigeminal neuralgia, whiplash and postoperative complications.

Dr. J.D. Day, MD — Education, Training & Experience

  • M.D., University of Washington (Seattle), with a B.A. in Chemistry, Whitman College—a strong academic foundation supporting complex neurosurgical analysis.
  • American Board of Neurological Surgery–certified (initial certification 1999, current through 11/2029).
  • 30 years in practice specializing in neurological surgery, spine surgery, and spine care, including high-acuity cranial and spinal pathology.
  • Completed formal neurosurgical training (PGY I–VII) at the University of Southern California, plus a Research Fellowship in Cranial Base Surgery & Anatomy, including advanced international training at the University of Vienna Medical School (Austria).
  • Former Professor with Tenure and Chair of Neurosurgery (2010–2023), University of Arkansas for Medical Sciences (UAMS)—longstanding academic and departmental leadership. Recognized by Healthgrades for the top 5% in Cranial Neurosurgery.
  • Recognized clinical excellence: Best Doctors in America (2012–2023) and multiple peer-voted regional honors (e.g., Best Doctors in Arkansas; Best Doctors of San Antonio).
  • Extensive multi-institution clinical leadership, including Director, Center for Cerebrovascular Surgery & Stroke (Allegheny General Hospital) and broad staff appointments across major hospital systems.
  • Neurosurgery Residency Program Director (2010–2015) and Associate Residency Program Director previously—deep expertise in physician training, competency, and surgical education systems.
  • Highly experienced medico-legal consultant with over 40 depositions/testimonies in the last 4 years, providing expert review and testimony for both plaintiff and defense in neurosurgery/spine matters.

As a neurosurgeon expert witness, Dr. Day collaborates closely with legal teams to clarify the clinical decision-making process, distinguish expected risk from deviation, and identify medically meaningful issues early in litigation. He translates complex neurological concepts into clear, accurate explanations that can be effectively presented to opposing counsel, judges, and juries. Through comprehensive case review, well-supported expert reports, and credible deposition and trial testimony provided as part of his medical expert witness services, Dr. Day helps attorneys present complex medical issues with clarity, precision, and professional authority at every stage of the legal process.

Medical Expertise Made Accessible

Receive reliable assessments grounded in the latest spine and brain care knowledge from a neurosurgeon expert witness. Technical details are explained in terms anyone can understand, supporting your legal arguments.

Evidence-Based Case Review

Get case opinions firmly based on the best available evidence and clinical literature through medical expert witness services in the USA. Every conclusion is supported, defensible, and tailored to the specific circumstances of your matter.

Our Services

Spine imaging analyzed by a neurosurgeon and spine surgery expert witness in the USA

Neurosurgery, Spine Surgery & Spine Care Expert Witness

Dr. Day provides clear, defensible opinions on complex neurosurgical and spine-related matters. His testimony translates advanced medical evidence into explanations that resonate with attorneys, judges, and juries.

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Expert Case Review

Each case review delivers structured, evidence-based analysis to help attorneys assess medical strength and risk early. Dr. Day clarifies causation, standards of care, and key facts to support informed legal strategy.

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Deposition-Ready Testimony

Dr. Day prepares testimony that is clear, consistent, and resilient under cross-examination. His approach ensures complex medical findings are communicated confidently and effectively in deposition and trial settings.

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Clarity for Legal Teams and Juries

Benefit from strong courtroom storytelling and nuanced layperson-friendly language from a neurosurgeon, spine surgery, and medical expert witness in the USA. Complex topics are made clear, empowering everyone in the courtroom to grasp what truly matters to your case.

Medical professional organizing reports for medical expert witness services in the USA

Objective Support for Your Legal Strategy

Dr. Day provides attorneys with methodical, defensible medical opinions that stand up to close scrutiny. With more than three decades of hands-on experience, he brings the perspective of a neurosurgeon, spine surgeon, and medical expert witness in the USA, who understands how medical evidence must be evaluated and communicated in high-stakes legal settings. He reviews and presents complex clinical information with care, translating technical findings into clear, precise language for attorneys, judges, and juries. Dr. Day supports cases from initial screening through deposition, written opinions, and courtroom testimony, while collaborating with other medical professionals to ensure a complete and accurate understanding of the facts. His work reflects independent judgment grounded in clinical research, established neurosurgical guidelines, and years of experience as both a treating surgeon and an academic mentor.

Dr. J.D. Day, M.D., is a board-certified neurosurgeon and spine surgery specialist providing medical-legal support and case-focused insight for complex matters. We serve clients across the United States of America, including Florida,
New York, California, Texas, Pennsylvania, Illinois, New Jersey, Georgia, Ohio, and Michigan.