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An unincorporated solo practitioner using his own social security number.
Mallela issues

An unincorporated solo practitioner using his own social security number.

By Jason Tenenbaum 2 min read

Key Takeaway

Court ruling on proper taxpayer identification requirements for no-fault insurance billing providers and when social security numbers vs EINs must be used.

This article is part of our ongoing mallela issues coverage, with 217 published articles analyzing mallela issues 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.

Hu-Nam-Nam v New York Cent. Mut. Fire Ins. Co., 2016 NY Slip Op 26237 (App. Term 2d Dept. 2016)

A billing provider seeking to recover no-fault benefits for services rendered to an assignor must provide, at the bottom of the claim form, a taxpayer identification number either in the form of a social security number or an employer identification number. Social security numbers are used to identify individual persons, while employer identification numbers are used to identify employers (see 26 CFR 301.6109-1 ). “An individual … who is an employer or who is engaged in a trade or business as a sole proprietor should use an employer identification number” (26 CFR 301.6109-1 ), since an employer identification number is required if the taxpayer “ay wages to one or more employees” (IRS Publication No. 334 ). Thus, it is permissible for a billing provider operating as a sole proprietor to use his or her own social security number on the claim form if it is the billing provider who rendered the services in question. However, where, as here, a doctor bills for services rendered by a treating provider in that doctor’s employ, it is impermissible for the doctor to bill using his or her own social security number.

Nothing better than putting your social security number on documents to be distributed to the world.  That is the vehicle for classic fraud.  Legally, this is the type of “technical issue” that the Court of Appeals warned against in Malella.  Yet, this is not  a Malella defense since and is deemed an improper billing defense.  The Court held as follows: “As defendant demonstrated that the claim form submitted by plaintiff was for services performed by plaintiff’s employee, that the claim form was submitted under plaintiff’s social security number, and that the denial of claim form based upon improper billing was mailed within 30 days of defendant’s receipt of the claim form, defendant established its entitlement to summary judgment.”

I am not sold this is a defense, but you do not have to sell me on it.  I am not the court.

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

Mallela Fraud Defense in No-Fault Insurance

The Mallela defense — named after the Court of Appeals decision in State Farm v. Mallela — allows insurers to deny no-fault claims by proving that a medical provider fraudulently incorporated to circumvent licensing requirements. Establishing a Mallela defense requires extensive investigation and evidence of corporate structure, ownership, and control. These articles analyze the Mallela doctrine, its procedural requirements, and the evolving case law that shapes how courts evaluate fraudulent incorporation claims in no-fault practice.

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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 mallela issues 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

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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
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24+ Years
Articles
2,353+ Published
Licensed In
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