.

Defense Digest

Limiting the Opinions of Plaintiff’s Non-Retained Expert Witnesses Regarding Injury Causation and Permanency

Defense Digest, Vol. 30, No. 1, March 2024

March 1, 2024

by Thomas J. Slogar and Frank L. Madia

Key Points:

  • Plaintiff’s non-retained experts are treating physicians, and their testimony at trial should be limited to their scope of treatment, diagnosis, and prognosis with respect to the injuries alleged. 
  • Plaintiff’s treating physicians lack the proper foundation to provide expert opinion testimony on medical causation and permanency unless they take the plaintiff’s history relating to an incident and review the records of the plaintiff’s other physicians.

When a plaintiff discloses a treating physician as a non-retained medical expert, this non-retained expert’s testimony should be limited to exclude testimony regarding medical causation and permanency unless there is a proper predicate for such testimony. To lay the proper predicate, the physician must have reviewed the plaintiff’s medical records from other treating physicians, and the physician should obtain a history from the plaintiff that describes the manner in which the plaintiff was allegedly injured. 

For instance, in a slip and fall case, the history should include the manner in which the plaintiff allegedly slipped and fell. Where the treating physician fails to review the medical records from the plaintiff’s other medical providers and fails to obtain a history of how the plaintiff allegedly came to be injured, there is an argument that the non-retained expert/treating physician should be precluded from testifying about injury causation and permanency.

Pursuant to § 90.702, Fla. Stat., Daubert v. Merrell Dow Pharm., Inc., 509 U.S. 579 (1993), and other applicable Florida law, a trial court must make two preliminary factual determinations prior to permitting expert testimony: (1) whether the expert testimony will assist the trier of fact in understanding the evidence or in determining a fact in issue; and (2) whether the witness is qualified by knowledge, skill, experience, training, or education to express an opinion on the matter.

Under Daubert, the trial court is specifically assigned a gatekeeper task of ensuring that an expert’s testimony, whether scientific or non-scientific, rests on a reliable foundation and is relevant to the task at hand. Id. See also Kumho Tire Co. v. Carmichael, 526 U.S. 137, 141, 148-49 (1999); Corwin v. Walt Disney World Co., 475 F.3d 1239, 1250 (11th Cir. 2007). 

In Cooper v. Marten Transp., Ltd., 539 Fed. Appx. 963, 967 (11th Cir. 2013), the Eleventh Circuit explained that causation “could not be determined through a physical examination and the chronology of events alone.” The court further noted in that case that neither physician explained the basis for their opinions. Id. 

Courts frequently exclude causation opinion testimony of expert witnesses who base their opinions on a plaintiff’s account of the facts without consideration of other possible causes of injury. See Carmody v. State Farm Mut. Auto. Ins. Co., 2015 WL 5542534, at *3 (M.D. Fla. Sep. 18, 2015).

Moreover, even if an expert is qualified, the expert must have a sufficient factual predicate underlying those opinions. Florida Statute § 90.705(2), explicitly states: “[i]f the [opposing] party establishes prima facie evidence that the expert does not have a sufficient basis for the opinion, the opinions and inferences of the expert are inadmissible unless the party offering the testimony establishes the underlying facts or data.” 

The legislative history of the rule emphasizes that this subsection intends to provide protection for opposing counsel so that expert opinions that are completely unqualified will not be admitted and risk prejudicing the jury. See Florida Statute § 90.705, Law Revision Counsel Note (1976). “In this instance, the protection of using cross-examination to expose the flaws in the opinion is not sufficient in all cases.” Id.

In a recent slip and fall case in Broward County, Florida, the plaintiff disclosed a non-retained expert/treating physician who was a pain management specialist. This doctor had not been provided and had not otherwise reviewed any medical records regarding the plaintiff’s post-incident treatment, other than his own records. He had not obtained a history from the plaintiff of how the plaintiff had allegedly slipped and fallen or how the plaintiff was allegedly injured. In this particular case, the physician admitted in deposition that he was not retained to provide any opinion testimony regarding any permanent injury. 

The opinions of the physician regarding the plaintiff’s medical condition were based solely on subjective statements made by the plaintiff, that the alleged injuries occurred as a result of the incident (without any history of the incident itself or how the plaintiff came to be injured as a result of the incident), together with the medical treatment related to the physician’s care of the plaintiff (in a vacuum, without any medical treatment history related to the care and treatment provided by the plaintiff’s other treating physicians).
 
There was no record evidence of any attempt by the non-retained expert/treating physician to eliminate other possible causes of the plaintiff’s conditions. Additionally, there was no record evidence that this physician conducted a review of the plaintiff’s pre- or post-incident medical history. Accordingly, it was reasonable to conclude that the doctor intended to identify the condition for treatment purposes rather than to determine its exact source. See generally, Turner v. Iowa Fire Equipment, Co., 229 F.3d 1202, 1205 (8th Cir. 2000). Furthermore, none of the plaintiff’s medical records revealed information to demonstrate that the doctor made any “attempt to consider all the possible causes, or to exclude each potential cause until only one remained, or to consider which of two or more non-excludable causes was more likely to have caused the condition.” Id. at 1208 (holding that the trial court did not abuse its discretion in excluding treating physician causation opinion, based exclusively upon the medical history obtained from the plaintiff, which indicated no respiratory problems, and the temporal relationship between the incident and the onset of symptoms); see also, e.g., State, Div. of Risk Mgmt. v. Martin, 690 So.2d 651 (Fla. 1st DCA 1997) (holding that a doctor’s testimony did not constitute competent substantial evidence as to causation because it was based on speculation, made without knowledge of claimant’s relevant medical history, and based “virtually entirely” upon claimant’s false report of causal connection between the accident and a subsequent surgery); In re Paoli R. R. Yard PC’B Litigation, 35 F.3d 717 (3d Cir. 1994) (holding that for purposes of determining admissibility of expert medical testimony, part of differential diagnosis is using standard techniques to rule out alternative causes and, thus, where defendant points to a plausible alternative cause and the doctor offers no explanation for why he or she has concluded that was not the sole cause, the doctor’s methodology is unreliable); Berry v. CSX Transp. Inc., 709 So.2d 552, 571 (Fla. 1st DCA 1998) (holding that expert witness’ testimony regarding causation of a railroad employee’s malady was admissible in toxic tort litigation, as the expert employed a scientifically acceptable differential diagnosis method in an attempt to eliminate other possible causes of symptoms and his opinion was not based upon the employee’s personal history, medical records, physical examinations, and medical tests, but upon sufficient epidemiological data, facts, and personal observations); David v. Nat’l R.R. Passenger Corp., 801 So. 2d 223, 227 (Fla. 2d DCA 2001).

On the other hand, in the recent Broward County case, we argued that the defendants’ experts could opine regarding issues of causation because they actually applied standard techniques of differential diagnosis through the review of prior medical records, examinations, diagnostic films, discovery, depositions, investigation, statements, and photographs.

The Circuit Court in Broward County granted the defendants’ motion in limine to preclude causation opinions from the plaintiff’s treating non-retained physician. In our case, we had the perfect storm of the physician not having taken a history as to how the incident occurred or how the alleged injuries were caused by the incident, coupled with the plaintiff’s attorney not having provided any other treatment records to the physician, as well as the physician’s concession that he was not retained to provide an opinion on permanency. However, based on the case law, the argument to preclude opinion testimony by a treating physician as to causation and permanency should not hinge on whether the latter concession is made by the physician during deposition. 

*Tom is special counsel in our Orlando, Florida, office. He can be reached at (407) 420-4418 or tjslogar@mdwcg.com. Frank Madia is an associate in our Orlando office who can be reached at (407) 420-4410 or flmadia@mdwcg.com. Heather, also in our Orlando office, is an associate who can be reached at (407) 505-4680 or HCTruitt@mdwcg.com. 


 

Defense Digest, Vol. 30, No. 1, March 2024, is prepared by Marshall Dennehey to provide information on recent legal developments of interest to our readers. This publication is not intended to provide legal advice for a specific situation or to create an attorney-client relationship. ATTORNEY ADVERTISING pursuant to New York RPC 7.1. © 2024 Marshall Dennehey. All Rights Reserved. This article may not be reprinted without the express written permission of our firm. For reprints, contact tamontemuro@mdwcg.com.

Firm Highlights

Thought Leadership

Appellate Court Rejects Horizontal Immunity Defense to Company Not Acting as Statutory Subcontractor

The First District Court of Appeal held that a property management company was not entitled to horizontal immunity under section 440.10(1)(e), Florida Statutes, in a negligence action brought by an employee of another company working on the property. The claimant was injured while servicing a swimming pool at an apartment complex. His employer had contracted with the property owner to maintain the pool. Following the accident, the claimant received workers' compensation benefits through his employer’s carrier. The claimant subsequently filed a negligence action against the property management company, alleging that it failed to maintain the premises in a reasonably safe condition and failed to warn him of a dangerous condition that caused his injuries. The property management company had been retained by the property owner to maintain the complex in good operating condition and to perform routine maintenance and repair work. The property management company argued that it was immune from suit under section 440.10(1)(e) of Florida’s Workers’ Compensation Law. That provision grants immunity to a subcontractor providing services in conjunction with a contractor on the same project or contract work from civil actions brought by employees of another subcontractor, subject to limited exceptions. According to the property management company, it qualified as a subcontractor working on the same project as the claimant’s employer and was therefore entitled to horizontal immunity. The trial court agreed and entered summary judgment in its favor. On appeal, however, the claimant argued, and the appellate court agreed, that horizontal immunity applies only when a contractor has sublet work arising from a contractual obligation owed to a third party. The court noted that prior decisions consistently held that an entity acting solely on its own behalf as the owner of property, rather than pursuant to a contract with a third party, is not a “contractor” under section 440.10(1), even when it hires other companies to perform work on the property. In Teed, the property management company could not establish that the property owner had a primary contractual obligation to a third party to maintain either the apartment complex or the swimming pool, which it then delegated to the claimant’s employer or the property management company. As a result, the property owner did not qualify as a statutory contractor, and the property management company was not a subcontractor entitled to horizontal immunity under section 440.10(1)(e). The First District therefore reversed the lower court’s ruling and remanded the case for further proceedings on the claimant’s negligence claim.

Thought Leadership

New Jersey Workers’ Compensation Legislation Updates

Since June 1, 2026, there have been no new New Jersey workers’ compensation related cases from the Appellate or Supreme Courts. As such, below will highlight any new legislative updates since February. A1023 | S3984 - Medical Use of Cannabis Under Certain Circumstances This requires workers’ compensation, PIP, and health insurance coverage for the medical use of cannabis under certain circumstances. It was introduced on January 13, 2026 and referred to the Assembly Financial Institutions and Insurance Committee. It was also introduced on March 19, 2026 and referred to the Senate Commerce Committee. A1045  - Certain Injuries to Volunteer and Professional Public Safety and Law Enforcement Personnel This revises workers’ compensation coverage for certain injuries to volunteer and professional public safety and law enforcement personnel. It was introduced on January 13, 2026 and referred to the Assembly Labor Committee. A1384 | S2757 - Reduce Statute of Limitations in Medical Fee Disputes This reduces statute of limitations from six years to two years in medical fee disputes in workers’ compensation matters. It was introduced on January 13, 2026 and referred to the Senate Labor Committee. It was also introduced on the same day and referred to the Assembly Labor Committee. A1870 | S1379 - Workers' Compensation Benefits For Certain Workers Due to September 11, 2001 Terrorist Attacks This provides workers’ compensation benefits for certain public safety workers who developed illness or injury as result of responding to September 11, 2001 terrorist attacks. It was introduced on January 13, 2026 and referred to the Assembly Labor Committee. It was also introduced on the same day and referred to the Senate Labor Committee. On February 5, 2026, it was reported from the Senate Committee, 2nd Reading, and referred to the Senate Budget and Appropriations Committee. A2779 | S1521 - Excludes Certain Illegal Aliens This excludes certain illegal aliens from workers’ compensation and temporary disability benefits. It was introduced on January 13, 2026 and referred to the Senate Labor Committee. It was also introduced on the same day and referred to the Assembly Labor Committee. A2792 | S1555 -  Prevent Intoxicated Employees from Workers’ Compensation This prevents intoxicated employees from receiving workers’ compensation. It was introduced on January 13, 2026 and referred to the Senate Labor Committee. It was also introduced on the same day and referred to the Assembly Labor Committee. A3167 | S2372 - Workers’ Compensation Insurance Requirements for Certain Corporations and Partnerships This concerns workers’ compensation insurance requirements for certain corporations and partnerships. It was introduced on January 13, 2026 and referred to the Senate Labor Committee. It was also introduced on the same day and referred to the Assembly Labor Committee. A3548 | S3571 – Maximum Benefits for Certain Volunteers This provides certain volunteer and other workers with maximum compensation benefit for workers' compensation claim regardless of outside employment. It was introduced on January 13, 2026 and referred to the Senate Labor Committee. On March 2, 2026, it was reported from the Senate Committee, 2nd Reading, and referred to the Senate Budget and Appropriations Committee. It was also introduced on the same day and referred to the Assembly Labor Committee. On May 7, 2026, it was reported and referred to Assembly State and Local Government Committee. A3724 - Personal Liability to Employer Officers for Failure to Pay for Coverage This provides personal liability for owner, executive officer, or executive director of employer for failure to pay for workers' compensation coverage. It was introduced on January 13, 2026 and referred to the Assembly Labor Committee. On May 7, 2026, it was reported and referred to Assembly Judiciary Committee. A4617  - Certain Workers' Compensation Supplemental Benefits and Funding Method This concerns certain workers' compensation supplemental benefits and funding method. For a permanently and totally disabled worker or surviving dependents after December 31, 1979, with some exceptions, this bill provides for an annual cost of living adjustment in the weekly workers’ compensation benefit rate. It was introduced on March 10, 2026 and referred to the Assembly Labor Committee. S241 - Inclusion in Database of Appointed Officials This requires that workers’ compensation judges and administrative law judges be included in database of appointed officials. It was introduced on January 13, 2026 to the Senate, Referred to Senate State Government, Wagering, Tourism & Historic Preservation Committee. S2290 -  Mandatory Retirement Age This increases statutory mandatory retirement age for Supreme Court Justices, Superior Court Judges, Tax Court Judges, Administrative Law Judges, and Workers’ Compensation Judges from 70 to 72. It was introduced on January 13, 2026 and referred to the Senate Judiciary Committee. S3144 - Testimony in Workers’ Compensation This concerns submission of testimony in workers’ compensation claims. It was introduced on January 13, 2026 and referred to the Senate Labor Committee. S3342  - Increase Mandatory Retirement Age This increases statutory mandatory retirement age for Supreme Court Justices, Superior Court Judges, Tax Court Judges, Administrative Law Judges, and Workers’ Compensation Judges from 70 to 75. It was introduced on February 5, 2026 and referred to the Senate Judiciary Committee.

Thought Leadership

Commonwealth Court Holds That a Claimant Who Was Struck By a Car While Crossing the Street During an Unpaid Break Was In the Course and Scope of Employment

This case involved a claim petition filed by a claimant who sustained injuries after being struck by a vehicle while crossing the street in front of the employer’s premises. The employer denied the claim based on course and scope, as the accident occurred during one of two mandatory fifteen (15) minute breaks provided to the claimant. The claimant would punch out at the beginning of a break and punch back in when the break was over.  On the date of the incident, the claimant punched out and left the building to get lunch at a restaurant, which required her to cross the employer’s parking lot, and then a public street, where the injury occurred. The Workers Compensation Judge (WCJ) dismissed the petition, noting that that during the two mandatory fifteen-minute breaks per shift allowed by the employer, the claimant was free to leave the employer’s premises, and during breaks, permitted to engage in whatever activity she desired. The WCJ found that at the time of the accident, the claimant was on her own time, in the middle of the street, and going to get lunch.   The claimant filed an appeal with the Worker’s Compensation Appeal Board (Board), and the Board reversed.  According to the Board, the claimant’s location was still on the employer’s premises, as the claimant was taking her customary route while using a reasonable ingress/egress from the employer.  Further, the Board found that the “Personal Comfort Doctrine” applied, as the claimant was on a momentary departure to take care of her personal comfort, within the window of time she was allotted for her break.  The Board remanded the case, and a WCJ granted the claim petition.  The Board affirmed, and the employer appealed to the Commonwealth Court. Before the Court, the employer argued that the claimant was not in the course and scope of her employment, because the injury did not occur on its premises, and the claimant was outside the bounds of the Personal Comfort Doctrine. The Court, however, rejected these arguments, and dismissed the employer’s appeal.  The Court noted that the break given to the claimant was so cursory, when she set out to relieve her hunger for her own personal comfort,  she remained in the course of her employment when she sustained her injuries.  A Petition for Allowance of Appeal in the Supreme Court has been filed by the Employer, Giant Eagle.