Roth v. Velasquez: Plaintiff’s Expert Must Be Record-Grounded; No “Hindsight” Malpractice or Proximate Cause Against an ED Physician Who Properly Signed Out Care

Introduction

Roth v Velasquez (2026 NY Slip Op 04915 [1st Dept Aug. 6, 2026]) is a First Department medical malpractice decision arising from an emergency-department encounter on November 10, 2015. Plaintiff alleged that New York Presbyterian/Columbia University Medical Center (the hospital) and Anthony Velasquez, M.D. failed to timely diagnose and treat a pulmonary embolism (PE) by not ordering a CT pulmonary angiogram (CTPA).

The key issues on appeal were whether defendants were entitled to summary judgment on (1) departure from the standard of care and (2) proximate cause, and whether plaintiff’s expert proof was sufficient to create triable issues of fact—particularly as to Dr. Velasquez, whose shift ended before later workup decisions were made.

Summary of the Opinion

The Appellate Division modified Supreme Court’s order:

  • As to the hospital: denial of summary judgment was affirmed, because plaintiff’s expert (Dr. David A. Mayer, M.D.) raised triable issues of fact on departure and causation concerning the failure to pursue CTPA-based PE evaluation.
  • As to Dr. Velasquez: the complaint was dismissed on summary judgment. The court held plaintiff’s expert opinion against Dr. Velasquez was conclusory/speculative, relied on facts contradicted by the contemporaneous record, and impermissibly used hindsight; additionally, plaintiff failed to raise a triable issue of proximate cause because subsequent providers made the key later decisions after Dr. Velasquez’s shift ended.

Analysis

Precedents Cited

1) Summary judgment framework and burden shifting

  • Alvarez v Prospect Hosp., 68 NY2d 320, 324 [1986]: Cited for the standard summary-judgment framework (movant’s prima facie showing; opponent’s burden to raise triable issues). The court applied this to conclude that although the hospital made a prima facie showing, plaintiff’s expert raised fact issues requiring denial as to the hospital.
  • Diaz v New York Downtown Hosp., 99 NY2d 542, 544 [2002]: Cited in tandem with Alvarez to reinforce that once plaintiff produces competent expert proof creating a factual dispute on departure/causation, summary judgment is inappropriate.

2) Expert qualification across specialties

  • Maikish v Good Samaritan Hospital Med. Ctr., 228 AD3d 513, 513-514 [1st Dept 2024]: Used to support the proposition that an expert need not share the defendant’s specialty if the expert demonstrates sufficient knowledge/experience with the condition and relevant clinical setting. Here, Dr. Mayer’s experience diagnosing PE and teaching PE diagnosis/treatment supported his qualification to opine on PE evaluation standards.

3) Causation and “diminished chance” framing

  • Cabrera v Golden, 231 AD3d 149, 158 [1st Dept 2024]: Cited for causation principles—particularly that delayed diagnosis can support causation where earlier intervention could have prevented or mitigated injury. The court used Cabrera to accept (as to the hospital) that plaintiff’s expert opinion on delayed diagnosis and preventable/mitigable injury could create a triable causation issue.

4) When an expert affirmation is too conclusory/speculative

  • Contant v Mount Sinai Hosp., 221 AD3d 424, 424 [1st Dept 2023]; Mulroe v New York-Presbyt. Hosp., 203 AD3d 665, 665 [1st Dept 2022]; Bogin v Metz, 180 AD3d 404, 406 [1st Dept 2020]: Cited for the rule that an expert opinion that is conclusory, speculative, or not grounded in the evidentiary record is insufficient to defeat summary judgment. The court relied on these decisions to reject Dr. Mayer’s claims against Dr. Velasquez where the opinion depended on a “chest pain” narrative contradicted by the EMS report, triage/ED records, and plaintiff’s deposition testimony.

5) No liability based on hindsight or for not treating an “unindicated” condition

  • Brewster v Hunter, 242 AD3d 406, 407 [1st Dept 2025]; Cabrera v Golden, 231 AD3d at 157; Bello v New York City Health & Hosps. Corp., 233 AD3d 466, 467-468 [1st Dept 2024]; Bogin, 180 AD3d at 406: Cited for the proposition that malpractice cannot be established by hindsight and that a physician is not required to treat for an otherwise unindicated condition. The court applied these cases to hold that Dr. Velasquez’s decision-making must be judged based on what was reasonably indicated during his limited evaluation window and the clinical picture documented at the time.

Legal Reasoning

A. Distinct outcomes for the hospital vs. the individual physician

A central feature of the opinion is its defendant-specific analysis: the same general theory (missed PE and failure to order CTPA) yielded different results because the evidentiary record and decision points differed.

B. Why triable issues remained as to the hospital

The court credited Dr. Mayer’s record-based critique of the overall workup—risk profile, EKG and CT findings, and the asserted need for CTPA as the “gold standard”—as sufficient to create factual disputes on:

  • Departure: whether PE should have been evaluated more aggressively (including after kidney stones were ruled out), and whether reliance on a negative D-dimer was inappropriate because it was taken too early.
  • Causation: whether the failure to perform CTPA on November 10 led to delayed diagnosis and injuries that earlier discovery could have prevented or mitigated.

Notably, while the hospital’s radiology expert stated no PE was detected on the imaging performed that day (which Dr. Mayer did not dispute), the court emphasized the absence of an opinion that a CTPA on November 10 would likewise have been negative—leaving room for a jury to find missed diagnostic opportunity.

C. Why the claim against Dr. Velasquez was dismissed

The court found plaintiff’s expert proof deficient as to Dr. Velasquez for two interlocking reasons:

  1. Record contradiction and conclusory methodology. Dr. Mayer anchored the critique on severe “chest pain,” but the EMS report described a chief complaint of “a muscle spasm in [his] right rib,” and the triage/ED records did not document chest pain; plaintiff’s deposition likewise did not supply the missing complaint. The court treated this mismatch as fatal under First Department precedent: an expert cannot manufacture the factual predicate needed to label a workup negligent.
  2. Hindsight and “unindicated condition” framing. The court accepted defendants’ contention that CTPA is not benign due to contrast risks (including renal risks) and that it should be ordered when clinically indicated. Dr. Mayer’s failure to meaningfully address those risks—especially in the context of suspected renal pathology being evaluated—further contributed to the conclusion that his opinion was speculative and hindsight-driven.

D. Proximate cause and the significance of ED handoff timing

The opinion places substantial weight on clinical workflow: Dr. Velasquez saw plaintiff only between approximately 6:20 a.m. and 8:00 a.m. and then signed out to the day shift. The CT results were received and reviewed after his shift ended; the day-shift team reassessed PE and chose to forgo CTPA in favor of EKG and D-dimer testing.

On that record, the court held plaintiff failed to show it was probable that Dr. Velasquez’s conduct diminished plaintiff’s chance of a better outcome, because the later decision-makers—armed with the later results—made the key diagnostic choices before discharge. Citing Bello v New York City Health & Hosps. Corp., 233 AD3d at 467-468, the court added that Dr. Velasquez was not required to remain until completion of the ED workup once a proper sign-out occurred.

Impact

  • Stricter policing of expert “factual predicates” at summary judgment. The decision underscores that an expert’s departure theory must be tightly tethered to contemporaneous documentation (EMS, triage notes, ED records) and plaintiff’s sworn testimony; otherwise it can be rejected as speculative.
  • Greater practical protection for time-limited ED involvement where later clinicians independently reassess. The handoff analysis signals that plaintiffs must identify a causal chain linking the particular physician’s acts/omissions—during that physician’s actual decision window—to the alleged harm, especially when later providers review results and choose a different course.
  • Diagnostic testing decisions framed as risk-benefit judgments, not outcome-driven mandates. By emphasizing CTPA risks (contrast-related renal injury) and condemning hindsight reasoning, the opinion may discourage malpractice theories that treat high-sensitivity tests as obligatory whenever a serious condition is later diagnosed.
  • But hospitals may remain exposed even when an individual physician is dismissed. The split result illustrates how institutional liability can persist based on the overall ED workup and later decision-making, even if an early-shift physician is removed from the case.

Complex Concepts Simplified

  • Summary judgment: a pretrial ruling that ends a claim when no real factual dispute exists for a jury to decide. In malpractice cases, it often turns on dueling medical experts—unless one side’s expert is conclusory or inconsistent with the record.
  • Standard of care / departure: what a reasonably prudent clinician would do under similar circumstances; a “departure” is a meaningful deviation from that standard.
  • Proximate cause: a sufficiently close causal link between the alleged departure and the injury. Here, timing mattered: later clinicians reviewed results and made the critical PE-testing choice, weakening causation as to the earlier physician.
  • CTPA: CT pulmonary angiography, a CT scan with contrast dye used to visualize pulmonary arteries and detect clots (PE). The opinion stresses it carries risks, including potential renal harm from contrast.
  • D-dimer: a blood test that can help rule out clotting conditions; its reliability can depend on clinical context and timing, and it does not always substitute for imaging when suspicion remains.
  • Wells score: a clinical scoring tool estimating PE probability; the opinion references an “intermediate risk” category (here, 4.5) as part of the plaintiff’s expert rationale for further testing.
  • Hindsight bias: evaluating a clinician’s decisions based on what is learned later (e.g., a later PE diagnosis), rather than what was reasonably apparent at the time.

Conclusion

Roth v Velasquez clarifies two practical summary-judgment lessons in New York malpractice litigation: (1) expert affirmations must be grounded in, and not contradicted by, the contemporaneous medical record and testimony; and (2) where an ED physician’s involvement is brief and a proper sign-out occurs, proximate cause may fail if later providers independently reassess and make the key diagnostic decisions. At the same time, the decision shows that a hospital can still face trial where plaintiff’s expert raises fact disputes about the overall diagnostic workup and delayed diagnosis, even if an individual physician defendant is dismissed.