Key Takeaway
Court limits treating physician's testimony when doctor crosses into biomechanical engineering expertise without proper disclosure under CPLR 3101(d).
This article is part of our ongoing evidence coverage, with 160 published articles analyzing evidence issues across New York State. Attorney Jason Tenenbaum brings 24+ years of hands-on experience to this analysis, drawing from his work on more than 1,000 appeals, over 100,000 no-fault cases, and recovery of over $100 million for clients throughout Nassau County, Suffolk County, Queens, Brooklyn, Manhattan, and the Bronx. For personalized legal advice about how these principles apply to your specific situation, contact our Long Island office at (516) 750-0595 for a free consultation.
Harris v Campbell, 2017 NY Slip Op 08112 (4th Dept. 2017)
(1) CPLR 3101(d)
“Contrary to plaintiffs’ contention, the court properly limited the testimony of one of plaintiff’s treating physicians. “CPLR 3101 (d) (1) applies only to experts retained to give opinion testimony at trial, and not to treating physicians, other medical providers, or other fact witnesses” (Rook v 60 Key Ctr., 239 AD2d 926, 927 ). ” Where … a plaintiff’s intended expert medical witness is a treating physician whose records and reports have been fully disclosed … , a failure to serve a CPLR 3101 (d) notice regarding that doctor does not warrant preclusion of that expert’s testimony on causation, since the defendant has sufficient notice of the proposed testimony to negate any claim of surprise or prejudice’ ” (Hamer v City of New York, 106 AD3d 504, 509 ). Here, one of plaintiff’s treating physicians did not provide any expert disclosure, and during trial he indicated that, in addition to being a medical doctor, he received a Ph.D. in biomechanical engineering and he often relies on his engineering background in his medical practice. Subsequently, that treating physician was asked some questions pertaining to biomechanics, and specifically was asked about the amount of force needed to cause a lumbar injury. We conclude that defendant’s objections to that line of questioning were properly sustained inasmuch as defendant did not receive sufficient notice that the treating physician relied on his engineering background to support his opinions and conclusions about plaintiff’s injuries (see generally id.). Indeed, plaintiffs made no attempt in response to defendant’s objections to point to any medical records or other documentation that would establish that defendant had such notice.”
(2) “We reject plaintiffs’ contention with respect to the photographs of plaintiff’s vehicle inasmuch as it is well established that “hotographs showing no damage to a plaintiff’s vehicle are admissible to impeach a plaintiff’s credibility on the issue whether the accident caused the alleged injuries” (Tout v Zsiros, 49 AD3d 1296, 1297 , lv denied 10 NY3d 713 ). Furthermore, “even when liability is not at issue, proof as to the happening of an accident is probative and admissible as it describes the force of an impact or other incident that would help in determining the nature or extent of injuries and thus relate to the question of damages’ ” (Anderson v Dainack, 39 AD3d 1065, 1066 )”
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Legal Context
Why This Matters for Your Case
New York law is among the most complex and nuanced in the country, with distinct procedural rules, substantive doctrines, and court systems that differ significantly from other jurisdictions. The Civil Practice Law and Rules (CPLR) governs every stage of civil litigation, from service of process through trial and appeal. The Appellate Division, Appellate Term, and Court of Appeals create a rich and ever-evolving body of case law that practitioners must follow.
Attorney Jason Tenenbaum has practiced across these areas for over 24 years, writing more than 1,000 appellate briefs and publishing over 2,353 legal articles that attorneys and clients rely on for guidance. The analysis in this article reflects real courtroom experience — from motion practice in Civil Court and Supreme Court to oral arguments before the Appellate Division — and a deep understanding of how New York courts actually apply the law in practice.
About This Topic
Evidentiary Issues in New York Litigation
The rules of evidence determine what information a court or arbitrator may consider in deciding a case. In New York no-fault and personal injury practice, evidentiary issues arise constantly — from the admissibility of business records and medical reports to the foundation requirements for expert testimony and the application of hearsay exceptions. These articles examine how New York courts apply evidentiary rules in insurance and injury litigation, with practical guidance for building admissible evidence at every stage of a case.
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Frequently Asked Questions
What types of evidence are important in no-fault and personal injury cases?
Key types of evidence include medical records and bills, police accident reports, diagnostic imaging (MRI, X-ray, CT scans), expert medical opinions, business records from insurance companies and providers, witness statements, photographs of injuries and the accident scene, and employment records for lost wage claims. The rules of evidence under New York CPLR and the Evidence Rules govern what is admissible in court proceedings.
What is the business records exception to hearsay in New York?
Under CPLR 4518(a), a business record is admissible if it was made in the regular course of business, it was the regular course of business to make such a record, and the record was made at or near the time of the event recorded. This exception is crucial in no-fault litigation because insurers' denial letters, claim logs, and peer review reports are often offered as business records. The foundation for the business record must be established through testimony or a certification.
What role does diagnostic imaging play as evidence in injury cases?
Diagnostic imaging — MRIs, CT scans, X-rays, and EMG/NCV studies — provides objective evidence of injuries such as herniated discs, fractures, ligament tears, and nerve damage. Courts and arbitrators give significant weight to imaging evidence because it is less subjective than physical examination findings. In serious injury threshold cases under §5102(d), imaging evidence corroborating clinical findings strengthens the plaintiff's case considerably.
How do New York courts handle surveillance evidence in personal injury cases?
Insurance companies frequently hire investigators to conduct video surveillance of plaintiffs to challenge injury claims. Under CPLR 3101(i), a party must disclose surveillance materials prior to trial, including films, photographs, and videotapes. Surveillance evidence can be powerful for impeachment if it contradicts the plaintiff's testimony about limitations. However, courts may preclude surveillance that was not properly disclosed or that is misleadingly edited.
How are expert witnesses used in New York personal injury cases?
Expert witnesses provide specialized opinion testimony that helps the court or jury understand complex issues like medical causation, injury severity, future care needs, economic losses, and engineering defects. Under New York law, expert testimony must be based on facts in evidence, the expert's professional knowledge, or a combination of both. The expert must be qualified by training, education, or experience in the relevant field. Expert disclosure requirements under CPLR 3101(d)(1)(i) require parties to identify their experts and provide detailed summaries before trial.
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About the Author
Jason Tenenbaum, Esq.
Jason Tenenbaum is the founding attorney of the Law Office of Jason Tenenbaum, P.C., headquartered at 326 Walt Whitman Road, Suite C, Huntington Station, New York 11746. With over 24 years of experience since founding the firm in 2002, Jason has written more than 1,000 appeals, handled over 100,000 no-fault insurance cases, and recovered over $100 million for clients across Long Island, Nassau County, Suffolk County, Queens, Brooklyn, Manhattan, the Bronx, and Staten Island. He is one of the few attorneys in the state who both writes his own appellate briefs and tries his own cases.
Jason is admitted to practice in New York, New Jersey, Florida, Texas, Georgia, and Michigan state courts, as well as multiple federal courts. His 2,353+ published legal articles analyzing New York case law, procedural developments, and litigation strategy make him one of the most prolific legal commentators in the state. He earned his Juris Doctor from Syracuse University College of Law.
Disclaimer: This article is published by the Law Office of Jason Tenenbaum, P.C. for informational and educational purposes only. It does not constitute legal advice, and no attorney-client relationship is formed by reading this content. The legal principles discussed may not apply to your specific situation, and the law may have changed since this article was last updated.
New York law varies by jurisdiction — court decisions in one Appellate Division department may not be followed in another, and local court rules in Nassau County Supreme Court differ from those in Suffolk County Supreme Court, Kings County Civil Court, or Queens County Supreme Court. The Appellate Division, Second Department (which covers Long Island, Brooklyn, Queens, and Staten Island) and the Appellate Term (which hears appeals from lower courts) each have distinct procedural requirements and precedents that affect litigation strategy.
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