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The substitute peer doctor
Medical Necessity

The substitute peer doctor

By Jason Tenenbaum 2 min read

Key Takeaway

Bajaj permitted a substitute peer doctor to testify, then ruled for the provider after cross-examination and rebuttal. Read both parts of the decision.

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.

Bajaj allowed the substitute peer doctor to testify—and the provider still won. The two results belong together: admitting an expert’s opinion does not require the fact-finder to accept it.

Last reviewed: September 2026.

Historical note: Bajaj is a District Court trial decision; permission to testify did not establish that the insurer’s defense ultimately succeeded. Read the 2012 decision.

Admission and outcome were separate questions

Bajaj v GEICO, 2012 NY Slip Op 51106(U), decided June 18, 2012, is a Nassau District Court trial ruling. The parties stipulated to billing, denial timing and the substitute doctor’s expertise. The original peer review was not offered as evidence in chief.

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The court allowed the substitute’s testimony under the appellate decisions it discussed. It considered the original report for the limited purpose of controlling the testimony’s scope, not as substantive proof of the defense. This was a trial court applying appellate authority, not overruling it.

Cross-examination then weakened the substitute’s reasoning, and the treating physician explained why the nerve testing was useful. The court found that the insurer had not carried its ultimate burden and entered judgment for the provider.

Why keep both parts of the case?

A categorical objection to the substitute witness failed, but testing that witness’s reasoning mattered. Do not turn permission to testify into a prediction about the verdict, or confuse this trial record with the proof required on a paper motion.

Jason’s original 2012 note

Jason’s original 2012 account follows. His prediction about another appeal and criticism of a trial ruling are historical commentary; Bajaj applied appellate authority rather than overruling a higher court.

The first thing someone asks me in Brooklyn is whether “you have a substitute peer doctor”. I shrug my shoulder for the simple reason that either I will have a medical necessity framed issue hearing, or a record that will go to the 15th Floor and be decided in 2015 reversing the order of the Civil Court precluding my doctor, and granting me another day in court. When the case is remanded, that judge will be at Supreme Court, down the block.

I think you know what he case holds based upon the above. I will summarize:

  1. Substitute peer may testify.

  2. Case from Judge Buggs is considered wrong on constraint of Appellate Term precedent.

  3. Original peer does not have to be in evidence for substitute to try case.

  4. Acknowledgment that cross-examination of substitute peer doctor may bear more fruit than crossing original doctor, due to the “four corners” rule.

Read the case. Harold Soloman won in the end.

Connect to the Encyclopedia

Start with the medical necessity and peer-review encyclopedia, then compare these records:

For review of a particular no-fault dispute, contact the firm with the relevant reports and motion papers.

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.

Filed under: Medical Necessity
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 (7)

Archived from the original blog discussion.

CA
Captain America
Maybe Judge Buggs will be Justice Buggs when the appeal is heard. Maybe she will sit at the App Term 2nd. Let me ask how come the App Term 2nd can refuse to follow the App Div 2nd but Judge Buggs is constrained to follow the App Term 2nd. Doesn’t the conduct of the App Term 2nd warrant the refusal by lower courts to follow the precedent of higher courts. I certainly hope that there were some Judges who refused to follow the Dredd Scott decision. If I was a civil court Judge in the 2nd I would celebrate every reversal by the App Term 2nd of my decisions and push for higher review. Keep shrugging your shoulders J.T. and maybe you’ll develop some traps as big as the Captain’s.
JT
Jason Tenenbaum Author
Me thinks this court misapprehends its duty when faced with a substitute peer review. The trial court’s duty, as per Dilon v. NY Central, is to determine “whether the rationale for the conclusion in the peer review report, upon which defendant’s denial of claim forms was based, was correct” Without the original peer into evidence how does the court fulfill the function the appellate court laid upon its lap? I will tell you how by deciding that “current Appellate Term precedent appears to require nothing more than testimony from a medical expert setting forth a facially sufficient factual basis and medical rationale for the defense..” and this guy is being groomed for the Supreme Court! This decision shows Nassau is way more corrupt than Queens. At least Al’s cousin cited to the proper cases and announced the proper standards to be applied.
JA
Joe Armao
If I were more of a cynic than I already am, I would say the message from the Appellate Term 2nd to the Insurer is “don’t even bother including a sound factual basis and medical rationale in your initial peer review, you can fix/supplement/amplify it on the witness stand (effectively ending the need to PROPERLY deny the claim within 30 days). If I were even MORE of a cynic than that, I’d say the message to no fault plaintiffs is “go away already, we don’t like you!”
J
JT Author
A case a few years ago from the App. Term First Dept, Response v. GA, I think intimated that mindset.
CA
Captain America
The App Term has already made it clear that a provider cannot ever make out a prima facie case unless 1) denial is late (with myriad exceptions instead of the exceptional exemption) or 2) basically fails to identify the bill and say denied. As such I wonder why Jason even has this blog. I wonder why law is analyzed. The App Term is there to kill no fault providers. I’ve been looking at some other areas of law there too. Landlords cannot lose. If I were a cynic I’d say that Court is there to assist in the robbing of working people.
LR
Larry Rogak
Considering the fact that New York No-Fault is the only field of law in the United States of America where the defendant has to overcome the presumption that the plaintiff is entitled to win, it’s hard for me to feel pangs of injustice just because the Appellate Term permits a defendant to present some evidence at trial in its own defense.
CA
Captain America
Show me where in New York where there is a presumption that the Plaintiff is entitled to win. Let us not forget Larry that New York stripped its citizens of their right to sue for personal injury, lost wages and medical bills due to the negligence of others. You must meet threshold. What a windfall to insurance companies. So why don’t we get rid of No Fault Larry if its so bad. Maybe we can get rid of those incessant horrible commercials that the insurance companies spend 100s of millions playing; they do it out of love Rogak — not for the lucrative money that one can make in auto insurance in New York where you are protected from suit and do not have to pay medical benefits. New York is the only state in America where with the official sanction of the government insurance companies collect premiums without paying claims.

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