The Future is Bright for Medical Necessity Summary Judgment Motions in New York

Key Takeaways

• Geffner v. North Shore Univ. Hosp. (2d Dept. 2008) rejected expert affidavits on two grounds: opinions outside the witness’s specialty, and failure to address the opposing expert’s evidence — both are now bedrock CPLR §3212 doctrine in New York.
• To survive summary judgment under CPLR §3212, an expert affidavit must establish foundation showing specific specialization, documented record review, and direct rebuttal of the moving party’s expert — not just a contrary conclusion.
• The same two-prong test applies to no-fault IME reports: an examining physician who strays outside specialty or fails to engage the treating provider’s findings is vulnerable to challenge under Insurance Law §5106(a) and the implementing 11 NYCRR Part 65 regulations.
• Practical evidentiary checklist for both med-mal and no-fault practice: (1) confirm the expert’s board certification matches the medical issue at hand; (2) require documented review of operative and treating records; (3) require point-by-point rebuttal of opposing expert reasoning.
• The trajectory since 2008 has steadily tightened — Second Department and First Department decisions continue to apply the Geffner foundation rule with growing precision when reviewing expert affidavits on summary judgment.
• The 2026 CPLR §2106 amendment eliminated the notarization and certificate-of-conformity requirement for affidavits, making Geffner-style foundation analysis (specialization + opposing-evidence rebuttal) even more central — the procedural workarounds are gone; only substance remains.

The Future is Bright for Medical Necessity Summary Judgment Motions in New York

In the evolving landscape of New York medical malpractice law, practitioners face increasingly complex challenges in establishing liability and proving causation. For attorneys practicing in Nassau County, Suffolk County, and throughout New York City, understanding the nuances of expert testimony requirements and summary judgment practice has become more critical than ever. Recent developments in appellate decisions are shaping the future of how courts evaluate medical expert opinions, with implications that extend beyond traditional medical malpractice into related areas of practice.

As a Long Island attorney who has handled numerous medical malpractice and no-fault insurance cases, I’ve observed firsthand how courts are becoming more stringent in their evaluation of expert testimony. This trend has significant implications not only for medical malpractice practitioners but also for those of us who handle personal injury protection (PIP) cases where medical necessity determinations play a crucial role.

The Changing Standards for Expert Medical Testimony

New York courts have always required that expert testimony be based on sufficient foundation and fall within the witness’s area of expertise. However, recent appellate decisions are clarifying and strengthening these requirements in ways that will benefit skilled practitioners who understand how to properly prepare and present expert testimony.

The trend toward more rigorous scrutiny of expert qualifications and opinions creates opportunities for attorneys who take the time to properly develop their cases. When opposing counsel fails to meet these heightened standards, summary judgment becomes not just possible, but probable.

Again, this is not necessarily a pure no-fault post. However, this is a no-fault post by analogy. I came across a doosy of a decision and order from the Appellate Division, Second Department. It kind of cuts both ways on two different issues. Hopefully you will see where I am going with this, after you see the excepts I am publishing.

**Geffner v North Shore Univ. Hosp.
**2008 NY Slip Op 10124 (2d Dept. 2008)

To support her allegations , the plaintiff submitted the expert affidavit of Charles Phillips, a physician certified in emergency medicine. Dr. Phillips’ affidavit was of no probative value, however, as it contained opinions outside his area of expertise and did not establish a foundation for his opinions (see Glazer v Choong-Hee Lee, 51 AD3d 970; Mustello v Berg, 44 AD3d 1018, 1018-1019; Behar v Coren, 21 AD3d 1045, 1046-1047)….”

“Finally, the plaintiff submitted the expert affirmations of Howard C. Adelman, a physician certified in clinical pathology and cytopathology, which alleged that the defendant doctors misdiagnosed the decedent as suffering from myelodysplastic syndrome, acute myeloid leukemia, and adenocarcinoma. Dr. Adelman’s affirmations were insufficient to raise a triable issue of fact with respect to the alleged misdiagnoses since they failed to address the evidence relied upon by North Shore’s experts in rendering their opinions that the diagnoses were correct (see Germaine v Yu, 49 AD3d 685, 687; Fhima v Maimonides Med. Ctr., 269 AD2d 559, 560).

What Geffner v North Shore University Hospital Teaches Us

The Geffner decision illustrates two critical failings that attorneys must avoid when opposing summary judgment motions in medical cases:

1. Expert Testimony Must Stay Within Areas of Expertise

The court’s rejection of Dr. Phillips’ affidavit because it “contained opinions outside his area of expertise” reinforces a fundamental principle: certification in one medical specialty does not automatically qualify a physician to render opinions in all areas of medicine. Emergency medicine physicians, while broadly trained, cannot necessarily opine on complex diagnostic issues in specialized fields without additional foundation.

This principle applies directly to no-fault insurance cases where medical necessity determinations are challenged. IME doctors who venture beyond their areas of specialization risk having their opinions excluded or given little weight by the court.

2. Failure to Address Opposing Expert Evidence

Perhaps even more significantly, the court found Dr. Adelman’s affirmations insufficient because they “failed to address the evidence relied upon by North Shore’s experts.” This requirement goes beyond simply offering a contrary opinion – the expert must engage with and respond to the specific evidence and reasoning presented by the opposing side.

Practical Applications for Long Island and NYC Medical Cases

These developments create significant opportunities for defense attorneys and challenging prospects for plaintiffs’ counsel. Here’s how these trends are likely to play out:

For Defense Counsel

The tightening standards for expert testimony make summary judgment motions more viable in cases where plaintiff’s experts:

• Lack proper specialization for the specific medical issues involved
• Fail to establish adequate foundation for their opinions
• Don’t address the defendant’s expert evidence comprehensively
• Rely on conclusory statements rather than detailed analysis

For Plaintiffs’ Counsel

Successfully opposing summary judgment now requires more careful attention to:

• Selecting experts with precisely relevant specializations
• Ensuring experts review all relevant medical records and depositions
• Having experts specifically address and rebut defendant’s expert opinions
• Providing detailed factual foundations for all expert conclusions

How Do Geffner Principles Apply to IME Challenges in No-Fault Cases?

While Geffner involves traditional medical malpractice, its principles have direct applications in no-fault insurance disputes, particularly those involving medical necessity determinations. Insurance carriers frequently use Independent Medical Examinations (IMEs) — as authorized under Insurance Law §5106(a) and 11 NYCRR §65-3.5 — to challenge the necessity of ongoing treatment.

Under the standards articulated in Geffner, IME reports that venture beyond the examining physician’s area of expertise or fail to address the treating physician’s specific findings and reasoning may be vulnerable to successful challenges.

Challenging IME Reports

When challenging IME reports in no-fault cases, consider whether:

• The IME physician has relevant specialization for the specific conditions at issue
• The IME report addresses the treating physician’s findings and reasoning
• The IME physician had access to all relevant medical records
• The conclusions are supported by adequate factual foundation

Strategic Considerations for Motion Practice

The Geffner decision suggests that courts are becoming more analytical in their review of expert testimony. This creates opportunities for skilled attorneys to achieve summary judgment in cases that might previously have proceeded to trial.

A 2026 development sharpens the practical edge of these foundation requirements. The recent amendment to CPLR §2106 eliminated the notarization and certificate-of-conformity prerequisites for affidavits in New York litigation. With those procedural workarounds gone, the substantive foundation analysis articulated in Geffner — specialization plus opposing-evidence rebuttal — is now the primary battleground on contested summary judgment motions.

Timing and Preparation

Successful summary judgment motions in medical cases require early and thorough preparation. Defense attorneys should:

• Carefully review opposing expert qualifications early in discovery
• Identify areas where opposing experts may lack proper foundation
• Ensure their own experts comprehensively address all plaintiff allegations
• Prepare detailed factual records to support expert opinions

Frequently Asked Questions

How do these standards apply to IME reports in no-fault cases?

IME physicians must stay within their areas of expertise when rendering medical necessity opinions. An orthopedist, for example, may not be qualified to opine on psychological treatment needs without additional foundation.

What constitutes sufficient foundation for expert medical opinions?

Experts must demonstrate they have reviewed relevant medical records, understand the specific facts of the case, and base their opinions on established medical principles. Conclusory statements without supporting analysis are insufficient.

Can an expert opinion be rejected solely for lack of specialization?

Yes, if the expert ventures into areas outside their board certification or demonstrated expertise without establishing adequate foundation for their knowledge in those areas.

How should attorneys respond to summary judgment motions in medical cases?

Opposition must include expert affidavits that specifically address and rebut the moving party’s expert evidence, not just offer contrary conclusions.

Do these standards apply to cases in Nassau and Suffolk County courts?

Yes, these are statewide standards that apply in all New York courts, including local trial courts throughout Long Island and New York City.

Looking Forward: The Evolving Landscape

The trend toward more rigorous scrutiny of expert testimony represents a maturation of New York’s approach to medical litigation. Courts are recognizing that not all expert opinions are created equal, and that the quality of expert testimony should be carefully evaluated before cases proceed to trial.

For practitioners in medical malpractice, personal injury, and no-fault insurance cases, this evolution requires a higher level of preparation and attention to detail. Our legal encyclopedia catalogs related entries on expert foundation, IME procedure, and §3212 motion practice for further reference. The attorneys who adapt to these higher standards will find themselves with significant advantages in motion practice and case outcomes.

Building Stronger Cases

Success in this environment requires:

• Careful selection of experts with precisely relevant qualifications
• Thorough preparation of expert witnesses
• Comprehensive factual development
• Strategic use of summary judgment motions
• Attention to opposing expert vulnerabilities

Need Experienced Medical Litigation Counsel?

Whether you’re dealing with a complex medical malpractice case, challenging an IME report in a no-fault dispute, or facing a summary judgment motion, the evolving standards for expert testimony require experienced legal representation. Our firm has extensive experience handling medical litigation throughout Nassau County, Suffolk County, and New York City.

We understand the nuances of expert testimony requirements and can help you navigate these increasingly complex procedural requirements. Don’t let inadequate expert preparation derail your case or allow improperly supported opposing expert opinions to go unchallenged.

Contact us today at 516-750-0595 to discuss your medical litigation needs. We provide thorough, knowledgeable representation that takes full advantage of the current legal landscape to achieve the best possible outcomes for our clients.

The information in this post is provided for educational purposes only and should not be construed as legal advice. Every case is unique, and the outcome of your case will depend on the specific facts and circumstances involved.

Related Articles

• Understanding foundation requirements for medical malpractice expert testimony
• How appellate courts determine expert competency in medical standard of care testimony
• Expert qualification standards and professional sufficiency requirements in New York no-fault cases
• When opposing expert affirmations are sufficient to defeat summary judgment in malpractice cases
• New York No-Fault Insurance Law

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Legal Update (Last reviewed: May 2026): Since this 2008 post, New York’s approach to expert testimony has continued to evolve through appellate decisions in both the First and Second Departments applying the Geffner foundation rule with growing precision. The most significant procedural development is the 2026 amendment to CPLR §2106, which eliminated the notarization and certificate-of-conformity requirement for affidavits — making the Geffner foundation analysis (specialization plus opposing-evidence rebuttal) the central battleground on contested summary judgment motions. Department of Financial Services rulemaking under 11 NYCRR Part 65 continues to refine IME procedure in no-fault disputes. Practitioners should verify current expert testimony requirements and any recent appellate decisions before relying on the analysis in this post.