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The Neptune rule
No-Fault

The Neptune rule

By Jason Tenenbaum 8 min read

Key Takeaway

New York no-fault insurers must request examinations under oath within 30 days of receiving claims, or the requests become invalid under the Neptune rule.

This article is part of our ongoing no-fault coverage, with 271 published articles analyzing no-fault 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 the Neptune Rule in New York No-Fault Insurance Cases

The Neptune rule represents a critical timing requirement in New York no-fault insurance law that can make or break an insurance company’s defense strategy. This rule establishes that insurance carriers must act promptly when requesting examinations under oath (EUOs) from healthcare providers seeking reimbursement for accident-related medical services.

Under New York’s no-fault insurance system, when a healthcare provider submits claims for treating auto accident victims, insurance companies have the right to require the provider to appear for an EUO as part of their investigation process. However, this right comes with strict time limitations that insurers ignore at their own peril.

The Neptune rule specifically requires that EUO requests must be sent within 30 days of the insurance company receiving the underlying claims. If an insurer fails to meet this deadline, any subsequent EUO request becomes a legal nullity—essentially worthless for defense purposes. This timing requirement protects healthcare providers from indefinite exposure to examination demands and ensures that insurance investigations proceed efficiently.

New York courts have consistently held that the 30-day period begins running when the insurance company first receives the claim form, regardless of whether the claim is complete or whether the insurer has all supporting documentation. This bright-line rule prevents insurers from manipulating timelines by claiming they need additional information before the deadline starts running. The strict enforcement reflects judicial recognition that healthcare providers need finality in their business relationships with insurance carriers.

The Neptune doctrine extends beyond simply invalidating late EUO requests. When an insurer sends an untimely EUO demand and the provider fails to appear, the insurer cannot use that non-appearance as grounds to deny the underlying claims. This creates a powerful procedural bar that effectively prevents insurers from building defenses on late investigation efforts. Courts view attempts to rely on untimely EUOs as procedurally improper, regardless of whether the underlying claims have merit.

Case Background

In Wes Psychological Services v Travelers Insurance Co., a healthcare provider submitted claims for treating an automobile accident victim. Travelers Insurance Company, seeking to investigate the claims, sent EUO requests to the provider. However, these requests came more than 30 days after Travelers received the underlying claim forms. The provider did not appear for the scheduled examinations, and Travelers moved for summary judgment to dismiss the provider’s lawsuit seeking payment.

The insurance company argued that the provider’s failure to attend the EUOs justified claim denial. The Civil Court agreed with this reasoning, but the Appellate Term reversed. The case reached the appellate court on the narrow question of whether an untimely EUO request could support summary judgment dismissal, regardless of the provider’s subsequent non-appearance.

Jason Tenenbaum’s Analysis:

Wes Psychological Servs., P.C. v Travelers Ins. Co., 2019 NY Slip Op 52029(U)(App. Term 2d Dept. 2019)

“Contrary to defendant’s sole contention, defendant failed to demonstrate that it was entitled to summary judgment dismissing the complaint based on plaintiff’s failure to appear for EUOs, since the initial EUO request to plaintiff had been sent more than 30 days after defendant had received the claims at issue and, therefore, the requests were nullities as to those claims”

The Neptune rule represents judicial recognition that insurance companies possess inherently superior resources and leverage compared to healthcare providers. By imposing strict time limits on investigation requests, courts balance the power dynamic and prevent insurers from using procedural delays as tactical weapons. The rule also serves important policy interests in promoting efficient claim processing and reducing administrative costs throughout the no-fault system.

The 30-day deadline draws from regulations governing the entire no-fault framework, which emphasize prompt payment of legitimate claims. New York’s comprehensive no-fault insurance scheme was designed to provide swift compensation to accident victims and their medical providers without protracted litigation. When insurers fail to initiate investigations promptly, they undermine this legislative intent and create precisely the delays the system was meant to eliminate.

Courts have rejected various attempts by insurers to circumvent the Neptune rule. Some carriers have argued that subsequent EUO requests, sent after the initial untimely request, should restart the clock and provide valid grounds for denial. Appellate courts consistently reject this theory, holding that once the 30-day window closes without a valid EUO request, the insurer permanently loses that defense avenue for the claims at issue. This prevents insurers from making multiple attempts to schedule EUOs after missing initial deadlines.

Practical Implications

Insurance defense attorneys must implement rigorous claim intake and review procedures to ensure EUO requests issue within the statutory 30-day period. This requires prompt claims processing, swift determination of when EUOs are necessary, and efficient internal workflows that prevent administrative delays. Many carriers now use automated systems to track claim receipt dates and trigger EUO scheduling before the deadline expires.

Healthcare providers and their attorneys should carefully scrutinize EUO request dates when insurers deny claims based on examination non-appearance. Calculating the 30-day period from the claim submission date can reveal untimely requests that render the entire denial invalid. This analysis should occur early in litigation, as successful Neptune rule challenges can dispose of cases entirely without reaching the merits of the underlying claim disputes.

The rule also affects settlement negotiations. When providers identify untimely EUO requests, they gain substantial leverage because insurers cannot credibly threaten to prevail on non-appearance defenses. This reality often leads to more favorable settlement terms for providers, as carriers recognize the futility of litigating procedurally defective denials.

Key Takeaway

The Wes Psychological Services decision reinforces that timing is everything in no-fault insurance defense. Insurance companies cannot rely on late EUO requests to dismiss claims, regardless of whether the healthcare provider actually appears for the examination. When insurers miss the 30-day deadline, they lose a valuable defense tool and may face summary judgment in favor of the medical provider.

Legal Context

Why This Matters for Your Case

New York's no-fault insurance system, established under Insurance Law Article 51, is one of the most complex insurance frameworks in the country. Every motorist must carry Personal Injury Protection coverage that pays medical expenses and lost wages regardless of fault, up to $50,000 per person.

But insurers routinely deny valid claims using peer reviews, EUO scheduling tactics, fee schedule reductions, and coverage defenses. The Law Office of Jason Tenenbaum has handled over 100,000 no-fault cases since 2002 — from initial claim submissions through arbitration before the American Arbitration Association, trials in Civil Court and Supreme Court, and appeals to the Appellate Term and Appellate Division. Jason Tenenbaum is one of the few attorneys in the state who both writes his own appellate briefs and tries his own cases.

His 2,353+ published legal articles on no-fault practice are cited by attorneys throughout New York. Whether you are dealing with a medical necessity denial, an EUO no-show defense, a fee schedule dispute, or a coverage question, this article provides the kind of detailed case-law analysis that helps practitioners and claimants understand exactly where the law stands.

About This Topic

New York No-Fault Insurance Law

New York's no-fault insurance system requires every driver to carry Personal Injury Protection (PIP) coverage that pays medical expenses and lost wages regardless of who caused the accident. But insurers routinely deny, delay, and underpay valid claims — using peer reviews, IME no-shows, and fee schedule defenses to avoid paying providers and injured claimants. Attorney Jason Tenenbaum has litigated thousands of no-fault arbitrations and court cases since 2002.

271 published articles in No-Fault

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Common Questions

Frequently Asked Questions

What is New York's no-fault insurance system?

New York's no-fault insurance system, codified in Insurance Law Article 51, requires all drivers to carry Personal Injury Protection (PIP) coverage. This pays for medical expenses, lost wages (up to $2,000/month), and other basic economic loss regardless of who caused the accident, up to $50,000 per person. However, to sue for pain and suffering, you must meet the 'serious injury' threshold under Insurance Law §5102(d).

How do I fight a no-fault insurance claim denial?

When a no-fault claim is denied, you can challenge it through mandatory arbitration under the American Arbitration Association's no-fault rules, or by filing a lawsuit in court. Common defenses to denials include challenging the timeliness of the denial, the adequacy of the peer review report, or the insurer's compliance with regulatory requirements. An experienced no-fault attorney can evaluate which strategy gives you the best chance of overturning the denial.

What is the deadline to file a no-fault claim in New York?

Under 11 NYCRR §65-1.1, you must submit a no-fault application (NF-2 form) within 30 days of the accident. Medical providers must submit claims within 45 days of treatment. Missing these deadlines can result in claim denial, though there are limited exceptions for late notice if the claimant can demonstrate a reasonable justification.

What no-fault benefits am I entitled to after a car accident in New York?

Under Insurance Law §5102(b), no-fault PIP covers necessary medical expenses, 80% of lost earnings up to $2,000/month, up to $25/day for other reasonable expenses, and a $2,000 death benefit. These benefits are available regardless of fault, up to the $50,000 policy limit. Claims are paid by your own insurer — not the at-fault driver's.

Can I choose my own doctor for no-fault treatment in New York?

Yes. Under New York's no-fault regulations, you have the right to choose your own physician, chiropractor, physical therapist, or other licensed healthcare provider. The insurer cannot dictate which providers you see. However, the insurer can request an IME with their chosen doctor and may challenge the medical necessity of your treatment through peer review.

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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 no-fault 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.

Filed under: No-Fault
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 No-Fault Law

New York has a unique legal landscape that affects how no-fault 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 no-fault 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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