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The substitute peer doctor
Medical Necessity

The substitute peer doctor

By Jason Tenenbaum 8 min read

Key Takeaway

Nassau District Court ruling in Bajaj v GEICO clarifies when substitute peer doctors can testify in no-fault medical necessity cases, overturning restrictive precedent.

In New York no-fault insurance litigation, medical necessity disputes often hinge on expert testimony from peer review doctors. A critical procedural question that frequently arises is whether an insurance company can use a “substitute peer doctor” to testify at trial when the original peer reviewer is unavailable. This issue has significant strategic implications for both plaintiffs and defendants in New York no-fault insurance cases.

The Nassau County District Court’s decision in Bajaj v GEICO provides important clarity on this procedural matter, establishing more liberal rules for substitute peer testimony that can affect case strategy and outcomes. Understanding these rules is essential for practitioners navigating medical necessity reversals and similar challenges in no-fault practice.

Jason Tenenbaum’s Analysis:

Bajaj v GEICO, 2012 NY Slip Op 51106(U)(Dis. Ct. Nassau Co. 2012)

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.

Key Takeaway

The Bajaj decision liberalizes the rules for substitute peer doctor testimony in no-fault cases, allowing insurance companies greater flexibility in presenting expert testimony. However, the ruling also acknowledges that substitute peers may be more vulnerable to cross-examination due to the “four corners” rule, potentially creating strategic advantages for plaintiff attorneys. This decision represents a significant shift from more restrictive precedents that required proper foundation for peer reports.


Legal Update (February 2026): Since this 2012 post, New York’s no-fault insurance regulations and civil procedure rules governing expert medical testimony may have been amended, including potential changes to discovery deadlines, peer review requirements, and substitute expert witness procedures. Additionally, appellate decisions in the intervening years may have refined or modified the precedential value of Bajaj v GEICO regarding substitute peer doctor testimony. Practitioners should verify current Civil Practice Law and Rules provisions and recent case law developments when addressing substitute peer doctor issues in no-fault medical necessity disputes.

Filed under: Medical Necessity
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

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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