Skip to main content
What a line
Personal Injury

What a line

By Jason Tenenbaum 8 min read

Key Takeaway

When medical expert opinions conflict with facts, the facts must prevail in NY personal injury cases. Protect your claim. Call 516-750-0595.

This article is part of our ongoing personal injury coverage, with 76 published articles analyzing personal injury 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.

When Medical Opinion Testimony Conflicts with Facts in New York Personal Injury Cases

In personal injury litigation, medical expert testimony often forms the cornerstone of proving or disproving injury claims. However, the Fourth Department’s ruling in Monzon v Porter, 2019 NY Slip Op 04855 (4th Dept. 2019) reinforces a fundamental principle: “Where opinion testimony is contradicted by the facts, the facts must prevail.”

This principle has significant implications for personal injury cases throughout New York and Long Island, particularly when medical experts provide opinions that conflict with objective evidence.

Understanding the Facts vs. Opinion Principle

Medical expert testimony, while crucial, cannot override objective facts established by the evidence. This principle applies to both plaintiff and defense experts in personal injury cases.

Types of Factual Evidence That Trump Opinion

  • Medical imaging results (MRIs, X-rays, CT scans)
  • Objective test results and measurements
  • Hospital records and emergency room reports
  • Documented physical findings by examining physicians
  • Video surveillance or photographic evidence
  • Employment records showing actual work limitations

Common Scenarios Where Facts Prevail

Personal injury attorneys frequently encounter situations where expert opinions conflict with established facts:

Defense IME Doctors vs. Treatment Records

Insurance company doctors may opine that an injury has resolved, but contemporaneous treatment records showing ongoing pain, limitations, and treatment may contradict this conclusion.

Causation Disputes

An expert may claim an injury wasn’t caused by an accident, but emergency room records documenting immediate post-accident complaints can establish the factual basis for causation.

Disability Assessments

When experts claim full recovery, but employment records show inability to return to prior work duties, the factual evidence supports ongoing disability.

Strategic Implications for Personal Injury Cases

The Monzon principle requires careful attention to factual development in personal injury cases:

Building Strong Factual Foundations

  • Ensure thorough documentation of all medical treatment
  • Obtain objective testing whenever possible
  • Document functional limitations through various sources
  • Preserve all relevant records from the accident scene
  • Gather witness testimony about observed limitations

Challenging Contradictory Expert Opinions

When expert opinions conflict with established facts, attorneys can:

  • Highlight specific factual contradictions during cross-examination
  • Use documentary evidence to impeach unsupported conclusions
  • Emphasize the Monzon principle in legal arguments
  • Request jury instructions on weighing facts versus opinion

Frequently Asked Questions

Can a medical expert’s opinion be completely disregarded?

While expert testimony carries significant weight, courts can and will disregard opinions that directly contradict established facts. The key is identifying clear, objective evidence that undermines the expert’s conclusions.

What types of facts are most important in personal injury cases?

Contemporaneous medical records, objective test results, and documented functional limitations typically carry the most weight when they conflict with expert opinions about injury severity or causation.

How do courts handle conflicting expert testimony?

When experts disagree, courts look to the underlying factual support for each opinion. Those opinions better supported by objective evidence typically prevail under the Monzon principle.

Can insurance company experts ignore treatment records?

No. While IME doctors may reach different conclusions than treating physicians, they cannot simply ignore well-documented factual evidence in the medical records.

If your personal injury case involves conflicting medical opinions, don’t let experts override the facts. Our experienced legal team knows how to use objective evidence to support your claim and challenge contradictory expert testimony. Call 516-750-0595 for a free consultation.

Legal Context

Why This Matters for Your Case

Personal injury law in New York is governed by a complex web of statutes, case law, and procedural rules that differ from most other states. The statute of limitations for most personal injury claims is three years under CPLR 214(5), but claims against municipalities require a Notice of Claim within 90 days. Motor vehicle accident victims must meet the serious injury threshold under Insurance Law §5102(d) before they can recover pain and suffering damages.

The Law Office of Jason Tenenbaum has recovered over $100 million for injured clients across Long Island, Nassau County, Suffolk County, Queens, Brooklyn, Manhattan, and the Bronx. With 24+ years of trial and appellate experience, more than 1,000 appeals written, and 2,353+ published legal articles, Jason Tenenbaum provides the authoritative legal analysis that practitioners and injury victims need to understand their rights.

This article reflects real courtroom experience and a deep understanding of how New York courts actually evaluate personal injury claims — from the initial filing through discovery, summary judgment, trial, and appeal.

About This Topic

New York Personal Injury Law

When negligence causes serious injury, New York law entitles victims to compensation for medical bills, lost income, pain and suffering, and more. From car accidents and slip-and-falls to construction injuries and medical malpractice, the Law Office of Jason Tenenbaum has recovered over $100 million for injured Long Islanders and New Yorkers since 2002.

76 published articles in Personal Injury

Keep Reading

More Personal Injury Analysis

Damages

$5 Million Verdict Affirmed for Childhood Sexual Abuse Survivor Under NY Survivors Act

NY appellate court affirms $5M verdict for childhood sexual abuse survivor under the Survivors Act. Learn your rights. Call 516-750-0595 for a free consultation.

Feb 18, 2026
No-Fault

How Insurance Companies Use Colossus Software to Undervalue Your Injury Claim

Insurance companies use Colossus software to lowball your injury claim. Learn how this system works and how a Long Island attorney can fight back. Call 516-750-0595.

Feb 18, 2026
Car Accidents

MV104: How a Simple Form Can Wreck Your Injury Claim

Learn how MV104 Motor Vehicle Accident Reports can damage your NY injury claim and what steps to take to protect your case from common filing mistakes.

Apr 9, 2025
FAQ

How to Handle Insurers After an Accident

Learn how to handle insurance companies after an accident. Expert tips on documentation, adjuster tactics, and protecting your claim from experienced Long Island attorneys.

Jan 30, 2025
5102(d) issues

NY Serious Injury Threshold: When Suboptimal Effort Derails Personal Injury Cases

Learn how NY's serious injury threshold works and why suboptimal effort can destroy your personal injury case. Expert Long Island attorney guidance. Call 516-750-0595.

Nov 25, 2019
Car Accidents

Partially at Fault in a New York Car Accident?

Learn how New York's comparative negligence laws allow you to recover compensation even when partially at fault in a car accident. Understand fault percentages and recovery.

Jun 16, 2025
View all Personal Injury articles

Was this article helpful?

Attorney Jason Tenenbaum

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.

24+ years in practice 1,000+ appeals written 100K+ no-fault cases $100M+ recovered

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.

If you need legal help with a personal injury matter, contact our office at (516) 750-0595 for a free consultation. We serve clients throughout Long Island (Huntington, Babylon, Islip, Brookhaven, Smithtown, Riverhead, Southampton, East Hampton), Nassau County (Hempstead, Garden City, Mineola, Great Neck, Manhasset, Freeport, Long Beach, Rockville Centre, Valley Stream, Westbury, Hicksville, Massapequa), Suffolk County (Hauppauge, Deer Park, Bay Shore, Central Islip, Patchogue, Brentwood), Queens, Brooklyn, Manhattan, the Bronx, Staten Island, and Westchester County. Prior results do not guarantee a similar outcome.

Filed under: Personal Injury
Jason Tenenbaum, Personal Injury Attorney serving Long Island, Nassau County and Suffolk County

About the Author

Jason Tenenbaum

Jason Tenenbaum is a personal injury attorney serving Long Island, Nassau & Suffolk Counties, and New York City. Admitted to practice in NY, NJ, FL, TX, GA, MI, and Federal courts, Jason is one of the few attorneys who writes his own appeals and tries his own cases. Since 2002, he has authored over 2,353 articles on no-fault insurance law, personal injury, and employment law — a resource other attorneys rely on to stay current on New York appellate decisions.

Education
Syracuse University College of Law
Experience
24+ Years
Articles
2,353+ Published
Licensed In
7 States + Federal

Discussion

Comments (1)

Archived from the original blog discussion.

N
nycoolbreez
Too bad No-Fault arbitrators and Civil Court judges don’t follow that logic with “medical necessity”

Legal Resources

Understanding New York Personal Injury Law

New York has a unique legal landscape that affects how personal injury cases are litigated and resolved. The state's court system includes the Civil Court (for claims up to $25,000), the Supreme Court (the primary trial court for unlimited jurisdiction), the Appellate Term (which hears appeals from lower courts), the Appellate Division (divided into four Departments, with the Second Department covering Long Island, Brooklyn, Queens, Staten Island, and several upstate counties), and the Court of Appeals (the state's highest court). Each court has its own procedural requirements, local rules, and case-assignment practices that can significantly impact the outcome of your case.

For personal injury matters on Long Island, cases are typically filed in Nassau County Supreme Court (at the courthouse in Mineola) or Suffolk County Supreme Court (in Riverhead). No-fault arbitrations are heard through the American Arbitration Association, which assigns arbitrators throughout the metropolitan area. Workers' compensation claims go to the Workers' Compensation Board, with hearings at district offices across the state. Understanding which forum is appropriate for your case — and the specific procedural rules that apply — is essential for a successful outcome.

The procedural landscape in New York also includes important timing requirements that can affect your case. Most civil actions are subject to statutes of limitations ranging from one year (for intentional torts and claims against municipalities) to six years (for contract actions). Personal injury cases generally have a three-year deadline under CPLR 214(5), while medical malpractice claims must be filed within two and a half years under CPLR 214-a. No-fault insurance claims have their own regulatory deadlines, including 30-day filing requirements for applications and 45-day deadlines for provider claims. Understanding and complying with these deadlines is critical — missing a filing deadline can permanently bar your claim, regardless of how strong your case may be on the merits.

Attorney Jason Tenenbaum regularly practices in all of these venues. His office at 326 Walt Whitman Road, Suite C, Huntington Station, NY 11746, is centrally located on Long Island, providing convenient access to courts and offices throughout Nassau County, Suffolk County, and New York City. Whether you need representation in a no-fault arbitration, a personal injury trial, an employment discrimination hearing, or an appeal to the Appellate Division, the Law Office of Jason Tenenbaum, P.C. brings $24+ years of real courtroom experience to your case. If you have questions about the legal issues discussed in this article, call (516) 750-0595 for a free, no-obligation consultation.

New York's substantive law also presents distinct challenges. In motor vehicle cases, the no-fault system under Insurance Law Article 51 provides first-party benefits regardless of fault, but limits the right to sue for non-economic damages unless the plaintiff establishes a "serious injury" under one of nine statutory categories. This threshold — codified at Insurance Law Section 5102(d) — requires medical evidence showing more than a minor or subjective injury, and courts have developed detailed standards for each category. Fractures must be documented through imaging studies. Claims of permanent consequential limitation or significant limitation of use require quantified range-of-motion testing with comparison to norms. The 90/180-day category demands proof that the plaintiff was unable to perform substantially all of their usual daily activities for at least 90 of the 180 days following the accident.

In employment discrimination cases, the legal standards vary depending on whether the claim arises under state or local law. The New York State Human Rights Law employs a burden-shifting framework: the plaintiff must first establish a prima facie case by showing membership in a protected class, qualification for the position, an adverse employment action, and circumstances giving rise to an inference of discrimination. The burden then shifts to the employer to articulate a legitimate, non-discriminatory reason for its decision. If the employer meets this burden, the plaintiff must demonstrate that the stated reason is pretextual. The New York City Human Rights Law, by contrast, applies a broader standard, asking whether the plaintiff was treated less well than other employees because of a protected characteristic.

Free Consultation — No Upfront Fees

Injured on Long Island?
We Fight for What You Deserve.

Serving Nassau County, Suffolk County, and all of New York City. You pay nothing unless we win.

The Law Office of Jason Tenenbaum, P.C. has been fighting for the rights of injured New Yorkers since 2002. With over 24 years of experience handling personal injury, no-fault insurance, employment discrimination, and workers' compensation cases, Jason Tenenbaum brings the legal knowledge and courtroom experience your case demands. Every consultation is free and confidential, and we work on a contingency fee basis — meaning you pay absolutely nothing unless we recover compensation for you.

Available 24/7  ·  No fees unless you win  ·  Serving Long Island & NYC

Injured? Don't Wait.

Get Your Free Case Evaluation Today

No fees unless we win — available 24/7 for emergencies.

Call Now Free Review