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Improper Use of an Affirmation Cost Plaintiff Its Case: Understanding CPLR 2106 Requirements in New York
2106 and 2309

Improper Use of an Affirmation Cost Plaintiff Its Case: Understanding CPLR 2106 Requirements in New York

By Jason Tenenbaum 5 min read

Key Takeaway

Radiology Today involved an old ownership-based affirmation defect and an inadequate peer-review rebuttal. See the historical result and current distinction.

This article is part of our ongoing 2106 and 2309 coverage, with 197 published articles analyzing 2106 and 2309 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.

The ownership restriction described in this 2012 decision is historical. A physician is not barred from using a qualifying affirmation under current CPLR 2106 merely because the physician owns the practice that is a party. This page’s original title is retained, but its former FAQ saying such an owner generally cannot affirm is no longer current guidance.

The case has a separate lesson that should not be lost: the provider’s response did not meaningfully answer the insurer’s peer review even if the disputed affirmation were considered.

Legal Update (September 2026): CPLR 2106 was amended effective January 1, 2024 (L. 2023, ch. 559) to permit an affirmation under penalty of perjury by any person, wherever made — see Matter of Sweet v Fonvil, 2024 NY Slip Op 02654 — so the professional and ownership restrictions this note turns on no longer control. Current rule: CPLR 2106 after the 2024 amendment.

Radiology Today: form and substance both mattered

Radiology Today, P.C. v Mercury Insurance Co., 34 Misc 3d 145(A), was decided January 24, 2012, by the Appellate Term for the Second, Eleventh and Thirteenth Judicial Districts.

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The insurer moved for summary judgment in an assigned no-fault benefits action. Civil Court treated medical necessity as the sole remaining trial issue. On appeal, the insurer challenged the denial of its motion.

The insurer had submitted an affirmed peer-review report supplying a factual basis and medical rationale for its conclusion. The provider’s opposing physician affirmation came from its owner, as identified on the claim forms. The court accepted the insurer’s objection to that affirmation under the former rule.

But the opinion went further: even assuming the affirmation could be considered, it did not meaningfully refer to or rebut the peer review’s conclusions. With the other entitlement findings unchallenged, the court granted the insurer’s motion dismissing the complaint. The decision did not find the treatment meritorious and then deny payment solely for a technicality.

The original excerpts and Jason’s observation

The two passages and Jason’s brief observation are preserved below. His recollection of his own involvement remains expressed with the same uncertainty; it has not been turned into a verified firm-result claim.

Radiology Today, P.C. v Mercury Ins. Co., 2012 NY Slip Op 50148(U)(App. Term 2d Dept. 2012)

“In opposition to the motion, plaintiff submitted a doctor’s affirmation and the claim forms, which identified the doctor as plaintiff’s owner. In its reply papers, defendant objected to the affirmation on the ground that it failed to comply with CPLR 2106. Plaintiff’s submission of the doctor’s affirmation was improper because the doctor is a principal of plaintiff professional corporation, which is a party to the action (see CPLR 2106; Slavenburg Corp. v Opus Apparel, 53 NY2d 799 ; Samuel & Weininger v Belovin & Franzblau, 5 AD3d 466 ; High Quality Med., P.C. v Mercury Ins. Co., 29 Misc 3d 132, 2010 NY Slip Op 51900 ). Thus, plaintiff failed to proffer any evidence in admissible form which raised an issue of fact (see Zuckerman v City of New York, 49 NY2d 557 ).”

“Even if the affirmation of plaintiff’s doctor could properly be considered, plaintiff nevertheless failed to raise an issue of fact, as the doctor’s affirmation did not meaningfully refer to, let alone rebut, the conclusions set forth in defendant’s peer review report (see Pan Chiropractic, P.C. v Mercury Ins. Co., 24 Misc 3d 136, 2009 NY Slip Op 51495 ).”

I am pretty sure this was my appeal.

What current CPLR 2106 changes

CPLR 2106 now permits qualifying affirmations by any person, wherever made. Matter of Sweet v Fonvil identifies the any-person expansion’s January 1, 2024 effective date.

The current statute specifies subscription and affirmation under New York penalties of perjury in substantially the stated form. It lists exceptions, including depositions and certain oaths, and preserves the separate acknowledgment requirement for matrimonial agreements. This is not a rule that every sworn document or acknowledgment has become unnecessary.

Nor was the old ownership restriction a general requirement that all medical testimony be neutral or supplied by an independent physician. Ownership, credibility, expert qualifications, factual knowledge and the form of the statement are different questions. The prior expansion’s broad explanations about preventing self-serving testimony did not accurately describe current filing eligibility.

The Pugsley note supplies a useful comparison: the insurer there relied on a report from a professional outside the former statutory categories. The amended rule changes that eligibility question, not the need for accurate credentials and competent evidence.

What a substantive response needs to address

Start with the actual report being challenged. Which services does it address? What factual assumptions does it use? What medical rationale supports its conclusion? Identify the records and reasoning offered in response rather than relying on a general statement that all treatment was necessary.

CPLR 3212(b) addresses supporting proof for summary judgment. A properly executed affirmation does not supply omitted facts or transform a conclusory opinion into a reasoned response. Conversely, a defect in opposition does not excuse a moving party’s failure to meet its initial burden.

The St. Vincent case note separates the insurer’s business-record, mailing and medical proof. The related High Quality Medical discussion concerns another alternative substantive ground in the old ownership cases.

If a defect has already been raised

Keep the original submitted version, the objection, the scheduling orders and the relevant reports together. Whether a correction may be considered depends on the actual procedural posture; do not quietly replace a document or assume that adding an independent signer guarantees admission.

The Arkin renewal note describes discretionary permission to correct an inadvertent form error. It is not an automatic right to introduce a different medical theory after an adverse ruling.

For review of a personal injury or medical-evidence dispute, request a Free Case Review.

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Last reviewed: September 2026. The current-rule explanation and FAQs replace obsolete ownership instructions. Historical quotations and Jason’s qualified recollection are preserved; the independent substantive ground is now prominent.

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.

About This Topic

CPLR 2106 and 2309: Affirmation & Oath Requirements

CPLR 2106 governs who may submit an affirmation in lieu of an affidavit in New York courts, while CPLR 2309 addresses the requirements for oaths, affidavits, and the certification of out-of-state documents. These seemingly technical provisions have significant practical impact — an improperly executed affirmation or affidavit can render an entire summary judgment motion defective. These articles analyze the formal requirements, common defects, and court decisions that practitioners must navigate when preparing sworn statements.

197 published articles in 2106 and 2309

Frequently Asked Questions

Common Questions About This Topic

4 answers from the firm's New York personal-injury and employment-law practice. Click any question to expand.

Was ownership the only problem in Radiology Today?

No. The court also found that the doctor's affirmation did not meaningfully address the insurer's peer-review conclusions, even if the affirmation could be considered.

Must a practice owner always obtain another doctor's affirmation?

Not merely because of ownership under current CPLR 2106. Whether another expert is needed depends on the substantive issues and qualifications, not the former categorical signer restriction.

Does proper affirmation language establish medical necessity?

No. Form compliance does not supply missing records, factual knowledge or medical reasoning. The response must address the issues actually raised by the motion.

Can an affirmation defect always be corrected after a ruling?

No automatic right to correction is established by this case. Counsel must assess the procedural posture, proposed correction and applicable rules, including whether renewal is appropriate.

Was this article helpful?

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 2106 and 2309 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

Reviewed & Verified By

Jason Tenenbaum, Esq.

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 (3)

Archived from the original blog discussion.

MS
MITCHELL S. LUSTIG
This is a stupid provision of the CPLR that needs to be amended. This is an example of form over substance.
J
JT Author
So you want to disallow a technicality that I have utilized time and time again to many a plaintiffs’ detriment? Not nice.
ML
mitch lustig
I do not want to hurt your business, but I think we should win cases the right way, based upon the merits. The same goes for plaintiffs.

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