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The peer review was insufficient
Medical Necessity

The peer review was insufficient

By Jason Tenenbaum 8 min read

Key Takeaway

Court ruled peer review report lacked factual basis for denying medical supplies, showing First Department's higher scrutiny standards for peer reviews in no-fault cases.

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.

In New York’s no-fault insurance system, peer review reports play a crucial role when insurers deny claims for medical necessity. These reports must provide detailed medical rationale to justify coverage denials, not just conclusory statements. The First Department Appellate Term has established particularly rigorous standards for what constitutes adequate peer review documentation, creating a higher evidentiary threshold than some practitioners encounter in the Second Department.

Under 11 NYCRR 65-3.6, insurance carriers may deny claims for services that are not medically necessary. However, the regulatory framework does not specify the precise level of detail required in peer review documentation to support such denials. This gap has led to significant case law development, with courts establishing that peer reviewers must do more than simply state conclusions—they must articulate the medical reasoning underlying their determinations.

The divergence between First and Second Department standards creates practical challenges for both providers and insurers operating throughout New York State. While the Second Department has sometimes accepted more abbreviated peer review reports, the First Department consistently demands comprehensive medical analysis that connects clinical findings to necessity conclusions. This heightened scrutiny serves important policy objectives: it prevents arbitrary denials, ensures patients receive medically appropriate care, and maintains the integrity of the no-fault system by requiring insurers to substantiate coverage decisions.

Case Background

In Amherst Medical Supply, LLC v A. Central Insurance Co., a medical supply provider sought payment for durable medical equipment furnished to an accident victim covered under defendant’s no-fault policy. The insurance carrier denied the claim based on lack of medical necessity, submitting a peer review report from a chiropractor who reviewed the medical file and concluded the supplies were unnecessary.

The provider filed suit seeking payment, and defendant moved for summary judgment to dismiss the complaint. In support of its motion, defendant submitted the peer review report and an accompanying affidavit from the reviewing chiropractor. However, these documents contained minimal explanation of why the durable medical goods were deemed unnecessary.

The peer reviewer’s analysis consisted primarily of a conclusory statement: “I do not find the need for … durable medical goods.” This bare assertion lacked any discussion of the patient’s documented injuries, treatment history, functional limitations, or clinical indications that would support or contradict the need for the medical supplies. The reviewer did not explain which specific aspects of the patient’s condition made the supplies unnecessary, nor did he reference any medical literature, treatment protocols, or clinical guidelines supporting his conclusion.

Jason Tenenbaum’s Analysis:

Amherst Med. Supply, LLC v A. Cent. Ins. Co., 2013 NY Slip Op 51800(U)(App. Term 1st Dept. 2013)

“The peer review report and accompanying affidavit submitted by defendant’s chiropractor failed to set forth a factual basis or medical rationale for his stated conclusion that the medical supplies here at issue were not medically necessary. The peer reviewer’s bald assertion that “I do not find the need for … durable medical goods,” was insufficient to meet defendant’s prima facie burden of eliminating all triable issues as to medical necessity.”

This Court tends to scrutinize peer reports and rebuttals more than the Second Department. Thus, while this Court will hold the providers to a higher burden to satisfy the Pan Chiro/CPT Medical test, the proof needed to shift the burden is accordingly higher.

The Amherst Medical Supply decision reinforces fundamental principles of summary judgment practice in no-fault litigation. To establish prima facie entitlement to judgment, the moving party must present evidence in admissible form that eliminates all triable issues of fact. Conclusory expert opinions, unsupported by factual analysis or medical reasoning, fail to meet this standard regardless of the expert’s credentials or experience.

This heightened scrutiny reflects the First Department’s recognition that medical necessity determinations directly impact patient care and provider compensation. Unlike purely procedural defenses such as late notice or verification non-compliance, medical necessity denials require substantive medical analysis. Courts cannot properly evaluate whether treatment was necessary without understanding the medical reasoning underlying the peer reviewer’s conclusion.

The decision also addresses the burden-shifting framework governing summary judgment in no-fault cases. Insurers bear the initial burden of establishing their defense through competent evidence. Only after meeting this threshold does the burden shift to providers to raise triable issues of fact. When insurers submit deficient peer reviews lacking factual basis or medical rationale, they fail at step one, and providers need not submit rebuttal evidence to defeat summary judgment.

Practical Implications

For insurance carriers defending medical necessity denials, Amherst Medical Supply establishes clear documentation requirements. Peer reviewers must articulate specific medical reasons supporting their conclusions, referencing the patient’s particular condition, injury mechanism, and treatment course. Generic statements that supplies or services are “not necessary” without explanation will not withstand summary judgment scrutiny in First Department cases.

Healthcare providers facing medical necessity denials should carefully evaluate the sufficiency of peer review documentation before settlement discussions. When peer reports lack factual basis or medical rationale, providers possess strong arguments against summary judgment even without submitting rebuttal reports. This can provide significant leverage in settlement negotiations or justify proceeding to trial on the necessity issue.

Practitioners should also note the jurisdictional distinction Jason identifies between First and Second Department standards. Cases venued in First Department counties (New York and Bronx) benefit from more stringent peer review requirements, while Second Department cases may face more lenient standards. This geographic variation can influence forum selection considerations in cases involving multiple potential venues.

Key Takeaway

The First Department requires peer reviewers to provide detailed factual basis and medical rationale for their conclusions. Unlike situations where a copy of a peer report is all that is needed, conclusory statements without supporting analysis will not satisfy the insurer’s burden to eliminate triable issues of medical necessity.


Legal Update (February 2026): Since this 2013 decision, New York’s peer review standards and medical necessity evaluation procedures may have been modified through regulatory amendments, updated Insurance Department guidance, or subsequent appellate decisions. Practitioners should verify current peer review documentation requirements and medical necessity standards under the most recent no-fault regulations and case law.

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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Common Questions

Frequently Asked Questions

What is a medical necessity denial in no-fault insurance?

A medical necessity denial occurs when the insurer's peer reviewer determines that treatment was not medically necessary based on a review of the patient's medical records. The peer reviewer writes a report explaining why the treatment does not meet the standard of medical necessity. To challenge this denial, the provider or claimant must present medical evidence — typically an affirmation from the treating physician — explaining why the treatment was necessary and rebutting the peer review findings.

How do you challenge a peer review denial?

To overcome a peer review denial, you typically need an affirmation or affidavit from the treating physician that specifically addresses and rebuts the peer reviewer's findings. The treating physician must explain the medical rationale for the treatment, reference the patient's clinical findings, and demonstrate why the peer reviewer's conclusions were incorrect. Generic or conclusory statements are insufficient — the response must be detailed and fact-specific.

What criteria determine medical necessity for no-fault treatment in New York?

Medical necessity is evaluated based on whether the treatment is appropriate for the patient's diagnosed condition, consistent with accepted medical standards, and not primarily for the convenience of the patient or provider. Peer reviewers assess factors including clinical findings, diagnostic test results, treatment plan consistency with the diagnosis, and whether the patient is showing functional improvement. Treatment that is excessive, experimental, or unsupported by objective findings may be deemed not medically necessary.

Can an insurer cut off no-fault benefits based on one IME?

Yes, an insurer can discontinue benefits after a single IME doctor concludes that further treatment is not medically necessary or that the claimant has reached maximum medical improvement. However, the IME report must be sufficiently detailed and the denial must be issued within 30 days under 11 NYCRR §65-3.8(c). The treating physician can submit a rebuttal affirmation explaining why continued treatment is necessary, forming the basis for challenging the cut-off at arbitration.

What is a peer review in no-fault insurance?

A peer review is a paper-based evaluation where a licensed medical professional reviews the patient's records and renders an opinion on whether the billed treatment was medically necessary. Unlike an IME, the peer reviewer does not examine the patient. The peer review report must be detailed, address the specific treatment at issue, and explain the medical rationale for the opinion. Generic or boilerplate peer reviews that fail to address the patient's individual clinical presentation may be found insufficient.

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Attorney Jason Tenenbaum

About the Author

Jason Tenenbaum, Esq.

Jason Tenenbaum is the founding attorney of the Law Office of Jason Tenenbaum, P.C., headquartered at 326 Walt Whitman Road, Suite C, Huntington Station, New York 11746. With over 24 years of experience since founding the firm in 2002, Jason has written more than 1,000 appeals, handled over 100,000 no-fault insurance cases, and recovered over $100 million for clients across Long Island, Nassau County, Suffolk County, Queens, Brooklyn, Manhattan, the Bronx, and Staten Island. He is one of the few attorneys in the state who both writes his own appellate briefs and tries his own cases.

Jason is admitted to practice in New York, New Jersey, Florida, Texas, Georgia, and Michigan state courts, as well as multiple federal courts. His 2,353+ published legal articles analyzing New York case law, procedural developments, and litigation strategy make him one of the most prolific legal commentators in the state. He earned his Juris Doctor from Syracuse University College of Law.

24+ years in practice 1,000+ appeals written 100K+ no-fault cases $100M+ recovered

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

About the Author

Jason Tenenbaum

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

Legal Resources

Understanding New York Medical Necessity Law

New York has a unique legal landscape that affects how medical necessity cases are litigated and resolved. The state's court system includes the Civil Court (for claims up to $25,000), the Supreme Court (the primary trial court for unlimited jurisdiction), the Appellate Term (which hears appeals from lower courts), the Appellate Division (divided into four Departments, with the Second Department covering Long Island, Brooklyn, Queens, Staten Island, and several upstate counties), and the Court of Appeals (the state's highest court). Each court has its own procedural requirements, local rules, and case-assignment practices that can significantly impact the outcome of your case.

For medical necessity matters on Long Island, cases are typically filed in Nassau County Supreme Court (at the courthouse in Mineola) or Suffolk County Supreme Court (in Riverhead). No-fault arbitrations are heard through the American Arbitration Association, which assigns arbitrators throughout the metropolitan area. Workers' compensation claims go to the Workers' Compensation Board, with hearings at district offices across the state. Understanding which forum is appropriate for your case — and the specific procedural rules that apply — is essential for a successful outcome.

The procedural landscape in New York also includes important timing requirements that can affect your case. Most civil actions are subject to statutes of limitations ranging from one year (for intentional torts and claims against municipalities) to six years (for contract actions). Personal injury cases generally have a three-year deadline under CPLR 214(5), while medical malpractice claims must be filed within two and a half years under CPLR 214-a. No-fault insurance claims have their own regulatory deadlines, including 30-day filing requirements for applications and 45-day deadlines for provider claims. Understanding and complying with these deadlines is critical — missing a filing deadline can permanently bar your claim, regardless of how strong your case may be on the merits.

Attorney Jason Tenenbaum regularly practices in all of these venues. His office at 326 Walt Whitman Road, Suite C, Huntington Station, NY 11746, is centrally located on Long Island, providing convenient access to courts and offices throughout Nassau County, Suffolk County, and New York City. Whether you need representation in a no-fault arbitration, a personal injury trial, an employment discrimination hearing, or an appeal to the Appellate Division, the Law Office of Jason Tenenbaum, P.C. brings $24+ years of real courtroom experience to your case. If you have questions about the legal issues discussed in this article, call (516) 750-0595 for a free, no-obligation consultation.

New York's substantive law also presents distinct challenges. In motor vehicle cases, the no-fault system under Insurance Law Article 51 provides first-party benefits regardless of fault, but limits the right to sue for non-economic damages unless the plaintiff establishes a "serious injury" under one of nine statutory categories. This threshold — codified at Insurance Law Section 5102(d) — requires medical evidence showing more than a minor or subjective injury, and courts have developed detailed standards for each category. Fractures must be documented through imaging studies. Claims of permanent consequential limitation or significant limitation of use require quantified range-of-motion testing with comparison to norms. The 90/180-day category demands proof that the plaintiff was unable to perform substantially all of their usual daily activities for at least 90 of the 180 days following the accident.

In employment discrimination cases, the legal standards vary depending on whether the claim arises under state or local law. The New York State Human Rights Law employs a burden-shifting framework: the plaintiff must first establish a prima facie case by showing membership in a protected class, qualification for the position, an adverse employment action, and circumstances giving rise to an inference of discrimination. The burden then shifts to the employer to articulate a legitimate, non-discriminatory reason for its decision. If the employer meets this burden, the plaintiff must demonstrate that the stated reason is pretextual. The New York City Human Rights Law, by contrast, applies a broader standard, asking whether the plaintiff was treated less well than other employees because of a protected characteristic.

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