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Peer review
Medical Necessity

Peer review

By Jason Tenenbaum 2 min read

Why Trust This Analysis

This article is part of our ongoing medical necessity coverage, with 170 published articles analyzing medical necessity 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.

Understanding Peer Review Standards in No-Fault Insurance Cases

In New York’s no-fault insurance system, insurance companies frequently challenge medical treatments through peer review reports to deny coverage based on alleged lack of medical necessity. However, these reports cannot simply conclude that treatment was unnecessary—they must provide substantial medical reasoning and factual support to withstand legal scrutiny.

The quality and thoroughness of peer review documentation plays a crucial role in determining whether an insurance company can successfully defend against claims for medical services. When peer reviewers fail to establish a comprehensive foundation for their conclusions, courts will reject their findings and rule in favor of healthcare providers seeking payment for legitimate medical services.

This principle protects both patients and medical practitioners from arbitrary insurance denials that lack proper medical justification. It ensures that medical necessity reversals are based on sound medical reasoning rather than conclusory statements designed to avoid payment obligations.

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Midtown Med. Assoc., P.C. v Clarendon Natl. Ins. Co., 2012 NY Slip Op 51071(U)(App. Term 2d Dept. 2012)

“As the affirmed peer review report submitted by defendant failed to clearly establish a sufficient medical rationale and factual basis to demonstrate a lack of medical necessity for the services at issue defendant’s motion was properly denied.”

Key Takeaway

Insurance companies must ensure their peer review reports contain detailed medical analysis and factual support when challenging treatment necessity. While a copy of a peer report is all that is needed to submit the evidence, the content must be substantive. Conclusory statements without proper foundation will result in denied motions and potential liability for the disputed medical services under New York No-Fault Insurance Law.


Legal Update (February 2026): Since this post’s publication in 2012, New York’s no-fault insurance regulations governing peer review standards and medical necessity determinations may have been subject to amendments through regulatory updates or legislative changes. Additionally, evolving case law may have further refined the evidentiary standards required for peer review reports to withstand judicial scrutiny. Practitioners should verify current regulatory provisions and recent appellate decisions when evaluating the sufficiency of peer review documentation in medical necessity disputes.

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

Medical Necessity Disputes in No-Fault Insurance

Medical necessity is the most common basis for no-fault claim denials in New York. Insurers hire peer reviewers to opine that treatment was not medically necessary, shifting the burden to providers and claimants to demonstrate otherwise. The legal standards for establishing and rebutting medical necessity — including the sufficiency of peer review reports, the qualifications of reviewing physicians, and the evidentiary burdens at arbitration and trial — are the subject of extensive case law. These articles provide detailed analysis of medical necessity litigation strategies and court decisions.

170 published articles in Medical Necessity

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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 medical necessity 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
Question. Why is the Court getting involved in reviewing the merits of the peer review.? By submitting the peer review, the insurer shifted the burden to the plaintiff. If the plaintiff does not submit an affidavit from the provider supporting the medical necessity of the services, the insurer should prevail. This case seems contrary to Khodadi Radiology and its progeny. In the context of a motion for summary judgment, the Court is not the ultimate trier of fact.
DJ
Damin J. Toell
Mitchell, so if the peer review report literally says “Mary had a little lamb,” and nothing else, that shifts the burden to the provider? And without a rebuttal affidavit, the insurer wins summary judgment? Obviously the answer to both questions is “no.” The peer review report must establish, prima facie, that the services aren’t medically necessary. This is not, and should not be, a mechanical “if you have a peer review report, you automatically sustain your burden” inquiry. Consider, for example, the question of a defendant’s prima facie burden on the “serious injury” issue in bodily injury suits. The courts there have to review the merits of the experts’ reports/affidavits to determine whether a prima facie burden is met. And, of course, sometimes the burden isn’t met. See, e.g., this recent App. Div., 2d Dep’t decision going into the meat of the defendant’s report and determining that a prima facie case for a lack of a serious injury was not met: http://www.nycourts.gov/reporter/3dseries/2012/2012_04154.htm If anything, the Appellate Term should be doing more of this, not less of this.
ML
mitchell lustig
You are right in an extreme circumstance where the peer review says “Mary had a little lamb.” But in most instances that is not the case. While the peer review may not be great, it usually contains a least an arguable basis that the services were not medically necessary. There are also numerous decisions from the Appellate Term dismissing cases based upon a peer review report where the court does not discuss the merits of the peer. Are we saying that in those cases the insurer’s peer review was unassailable. I still think a plaintiff is taking too big of a risk if it does not provide a medical affidavit and simply relies upon an attorney affirmation attacking the merits of the peer review report.

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