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A physical therapist's affidavit lacks probative value as to the rendering of a medical diagnosis
Evidence

A physical therapist's affidavit lacks probative value as to the rendering of a medical diagnosis

By Jason Tenenbaum 8 min read

Key Takeaway

Understanding physical therapist testimony limitations in NY personal injury law. Key insights from Howard v Espinosa for Long Island & NYC attorneys. Call 516-750-0595.

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.

Physical Therapist Expert Testimony Limitations in Personal Injury Cases

In New York’s personal injury litigation landscape, understanding the scope and limitations of expert testimony is crucial for both plaintiff and defense attorneys. For legal practitioners throughout Long Island and New York City, the rules governing which healthcare professionals can provide certain types of expert opinions have significant implications for case strategy and outcomes.

Case Analysis: Howard v Espinosa – Physical Therapist Testimony Limitations

Howard v Espinosa, 2010 NY Slip Op 00759 (3d Dept. 2010)

This is yet another 5102(d) case. But, there is a line in this case that I highlighted, which should interest some people out there, especially in light of the discussion that was herein presented on the topic of experts.

The Standard for Proving Serious Injury

“The issue thus distills to whether plaintiffs’ submissions in opposition to the motion raise a triable issue of fact as to the existence of any serious injury related to the 2005 accident (see Lee v Laird, 66 AD3d 1302, 1303 ). With respect to both the permanent consequential limitation and significant limitation categories, Supreme Court correctly concluded that plaintiff failed to submit any medical “quantitative or qualitative assessment to differentiate serious injuries from mild or moderate ones” (Clements v Lasher, 15 AD3d 712, 713 ; see Paton v Weltman, 23 AD3d 895, 897 ; John v Engel, 2 AD3d 1027, 1029 ). Plaintiffs submitted the affidavit of a physical therapist, Steven Bassin, and rely on an independent medical examination conducted in December 2005 by physician Robert Sellig, both of whom reported limitations on plaintiff’s range of motion. Sellig also diagnosed plaintiff with preexisting cervical spondylosis, noted the new bulge at C-7, T-1 and opined that plaintiff’s condition was aggravated by the May 2005 accident. Plaintiff also relies on his own description of the physical limitations he experienced following the accident.

The Court’s Analysis of Physical Therapist Testimony

As Supreme Court noted, however, the limitations on plaintiff’s range of motion as reported by Sellig, which are comparable to those reported by Bassin immediately following the [*3]accident, are nearly identical to those taken by the Department of Veterans Affairs approximately eight months prior to the accident in question . Further, although Sellig opined that plaintiff’s preexisting disease was aggravated by the 2005 accident, he does not compare plaintiff’s current complaints or limitations with those preexisting the accident or otherwise specify what injuries were caused by the 2005 accident (see Nowak v Breen, 55 AD3d at 1188). Indeed, Sellig never opines either that the C-7, T-1 bulge was caused by the accident or whether and how it might relate to plaintiff’s physical complaints (see June v Gonet, 298 AD2d 811, 812 ). Evidence of the bulge alone, even if there were evidence of causation, would not be sufficient to sustain a claim of serious injury (see John v Engel, 2 AD3d at 1029).

To the extent that plaintiffs continue to rely on Bassin’s conclusion that, despite the fact that plaintiff’s loss of range of motion did not worsen immediately following the 2005 accident, it got progressively worse over the next two years and that this decline was causally related to the 2005 accident’s aggravation of his preexisting spinal stenosis and arthritis, it is misplaced. As Supreme Court properly noted, a physical therapist “cannot by definition diagnose or make prognoss and is incompetent to determine the permanency or duration of a physical limitation” (Delaney v Lewis, 256 AD2d 895, 897 ; see Brandt-Miller v McArdle, 21 AD3d 1152, 1154-1155 ; Tornatore v Haggerty, 307 AD2d 522, 522-523 ).”

Read the bolded portion of this opinion. Thank you.

Understanding the Scope of Physical Therapist Expert Testimony

The Howard v Espinosa decision provides crucial guidance for attorneys handling personal injury cases throughout New York. The court’s analysis of physical therapist testimony limitations has significant implications for case preparation and expert witness strategy.

According to the court’s analysis, physical therapists face specific limitations when providing expert testimony in personal injury cases:

  • Cannot provide medical diagnoses – Physical therapists are not licensed physicians and cannot diagnose medical conditions
  • Cannot make prognoses – They cannot offer opinions on the future course of a medical condition
  • Cannot determine permanency – Physical therapists are not qualified to opine on whether limitations are permanent
  • Cannot assess duration of limitations – They cannot provide expert opinions on how long physical limitations will last

What Physical Therapists Can Provide

Despite these limitations, physical therapists can still provide valuable testimony in personal injury cases within their scope of practice:

  • Objective range of motion measurements
  • Functional capacity evaluations
  • Treatment records and progress notes
  • Observations about patient’s physical capabilities
  • Rehabilitation recommendations within their scope

Strategic Implications for Long Island and NYC Practitioners

For attorneys practicing personal injury law in the New York metropolitan area, the Howard decision underscores the importance of proper expert witness selection and testimony scope.

For Plaintiff Attorneys

When building a case for serious injury under Insurance Law § 5102(d), plaintiff’s counsel should consider:

  • Physician testimony is essential – Physical therapist testimony alone cannot establish permanency or duration of limitations
  • Causation must be clearly established – Medical experts must specifically connect injuries to the accident in question
  • Pre-existing conditions require careful analysis – Experts must differentiate accident-related limitations from pre-existing conditions
  • Quantitative assessments are crucial – Courts require objective measurements to differentiate serious injuries from mild or moderate ones

For Defense Attorneys

Defense counsel can use the Howard decision to challenge plaintiff’s expert testimony by:

  • Identifying when physical therapists exceed their scope of practice in testimony
  • Highlighting lack of physician testimony on permanency and causation
  • Demonstrating that pre-existing conditions account for current limitations
  • Challenging the absence of quantitative assessments differentiating injury severity

The Broader Context of Expert Testimony in New York Personal Injury Law

The restrictions on physical therapist testimony reflect broader principles governing expert qualifications in New York courts. Understanding these principles is essential for effective case preparation and courtroom strategy.

Professional Licensing and Scope of Practice

New York courts consistently enforce the principle that expert witnesses must stay within their professional scope of practice. This means that each healthcare professional can only testify about matters within their licensed competency.

The Medical Diagnosis Requirement

In serious injury cases, courts require medical diagnoses from licensed physicians. Physical therapists, while highly skilled in their field, cannot provide the medical diagnoses necessary to establish serious injury under the Insurance Law.

Practical Applications for Case Preparation

For attorneys handling motor vehicle accident cases in Long Island and New York City, the Howard decision provides clear guidance on expert witness strategy.

Building a Strong Plaintiff’s Case

Successful serious injury claims require:

  • Licensed physician testimony establishing medical diagnosis
  • Clear causation analysis linking injuries to the specific accident
  • Objective measurements demonstrating the severity of limitations
  • Comparison between pre-accident and post-accident conditions
  • Expert opinions on permanency and prognosis from qualified medical professionals

Effective Defense Strategies

Defense attorneys should scrutinize plaintiff’s expert testimony for:

  • Physical therapists offering opinions beyond their scope
  • Lack of physician testimony on key issues
  • Insufficient differentiation from pre-existing conditions
  • Absence of quantitative assessments
  • Gaps in causation analysis

Frequently Asked Questions

Can physical therapists testify as expert witnesses in personal injury cases?

Yes, physical therapists can testify as expert witnesses, but their testimony is limited to their scope of practice. They cannot provide medical diagnoses, prognoses, or opinions on permanency of limitations.

What types of testimony can physical therapists provide?

Physical therapists can testify about range of motion measurements, functional capacity evaluations, treatment records, rehabilitation recommendations, and their observations about a patient’s physical capabilities.

Why can’t physical therapists diagnose medical conditions?

Physical therapists are licensed healthcare professionals, but they are not medical doctors. New York law restricts medical diagnoses to licensed physicians, and courts enforce these professional scope limitations in expert testimony.

What is required to prove permanency in a personal injury case?

To establish permanency of limitations, plaintiffs typically need testimony from a licensed physician who can provide medical diagnoses, prognoses, and opinions about the long-term effects of injuries.

How do pre-existing conditions affect serious injury claims?

When pre-existing conditions are present, medical experts must clearly differentiate between limitations caused by the accident and those that existed before the incident. Objective measurements and comparative analysis are essential.

Understanding the nuances of expert testimony requirements in personal injury cases is crucial for successful outcomes. Whether you’re representing injured plaintiffs or defending insurance companies, our experienced legal team provides strategic guidance on expert witness selection and testimony preparation.

With extensive experience handling serious injury claims throughout Long Island and New York City, we understand the complex requirements for establishing or defending against claims under Insurance Law § 5102(d). Our team works with qualified medical experts who understand the legal standards for testimony in New York courts.

Don’t let expert testimony limitations compromise your case. Contact us today at 516-750-0595 to discuss your personal injury matter and ensure your expert witness strategy meets New York’s rigorous legal standards.


Legal Update (February 2026): Since this 2010 post, New York’s no-fault insurance regulations under Insurance Law § 5102 have undergone multiple amendments, including updates to fee schedules, diagnostic procedures, and expert testimony standards. Additionally, appellate decisions may have further refined the scope of physical therapist testimony limitations in serious injury determinations. Practitioners should verify current regulatory provisions and recent case law developments when addressing expert testimony issues in no-fault and personal injury cases.

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.

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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 evidence 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.

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

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Understanding New York Evidence Law

New York has a unique legal landscape that affects how evidence 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 evidence 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.

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