Medical necessity – rebutting a peer review

No-fault insurance disputes often center on whether medical treatment was truly necessary. When insurance companies deny claims based on peer review reports, healthcare providers aren’t left without recourse. The key lies in understanding how to effectively challenge these denials through proper medical documentation and expert testimony.

Under New York No-Fault Insurance Law, insurance carriers frequently use peer review reports to justify claim denials. These reports, prepared by physicians who haven’t examined the patient, can seem difficult to overcome. However, as demonstrated in recent appellate decisions, treating physicians who have direct patient contact often hold significant advantages in these disputes.

The Peer Review Challenge in No-Fault Insurance

Peer review reports represent one of the most common defense mechanisms employed by no-fault insurance carriers seeking to deny coverage for medical services. Under Insurance Law § 5102(a)(1), “necessary medical and rehabilitative services” constitute a prerequisite for reimbursement. Insurance companies exploit this requirement by retaining physicians to conduct paper reviews of medical records without ever examining the patient. These peer reviewers then issue reports concluding that treatment was unnecessary, excessive, or inappropriate.

The legal framework governing peer review reports evolved through case law establishing that such reports must contain both a factual basis and medical rationale for their conclusions. This standard emerged from cases like American Chiropractic Care, P.C. v Praetorian Ins. Co. and has become fundamental to evaluating the sufficiency of peer review evidence on summary judgment motions. Insurance carriers cannot simply submit conclusory statements; the peer reviewer must explain why specific treatments failed to meet medical necessity standards.

Healthcare providers facing peer review denials must understand that these reports, while potentially persuasive, are not dispositive. The treating physician’s perspective carries substantial weight because it derives from direct examination, ongoing patient monitoring, and observation of treatment response. Courts recognize the inherent limitations of paper reviews conducted by physicians who never interact with patients or witness their clinical progression.

Case Background: Westcan Chiropractic v Hertz Claim Management

In Westcan Chiropractic, P.C. v Hertz Claim Mgt., the insurance carrier moved for summary judgment dismissing the plaintiff’s claim for no-fault benefits, relying on a peer review report that challenged the medical necessity of chiropractic services provided to the assignor. The defendant’s peer reviewer had examined the patient’s medical records and concluded that the treatment rendered exceeded what was medically necessary for the documented injuries.

The defendant’s motion appeared strong on its face. The peer review report satisfied the procedural requirements established by appellate precedent: it articulated specific reasons for questioning treatment necessity and provided medical rationale grounded in accepted clinical standards. The carrier argued that absent rebuttal evidence of comparable quality, summary judgment must be granted.

Westcan Chiropractic opposed the motion by submitting an affidavit from one of the assignor’s treating doctors. This affidavit did not merely reassert that treatment was necessary in conclusory terms. Instead, the treating physician’s affidavit specifically referenced and addressed the peer reviewer’s findings, explaining why the peer reviewer’s conclusions were medically incorrect based on clinical observations documented in contemporaneous treatment records.

Jason Tenenbaum’s Analysis:

Westcan Chiropractic, P.C. v Hertz Claim Mgt., 2015 NY Slip Op 51066(U)(App. Term 2d Dept. 2014)

“In support of its motion, defendant submitted a sworn peer review report which set forth a factual basis and medical rationale for the reviewer’s determination that there was a lack of medical necessity for the services at issue (see American Chiropractic Care, P.C. v Praetorian Ins. Co., 42 Misc 3d 145, 2014 NY Slip Op 50346 ). However, in opposition to the motion, plaintiff submitted an affidavit by one of the assignor’s treating doctors, which, as plaintiff argues on appeal, “meaningfully referred to defendant’s peer review report and sufficiently rebutted the conclusions set forth therein""

Legal Significance: Establishing Standards for Medical Rebuttal

The Appellate Term’s decision in Westcan Chiropractic establishes critical precedent regarding the evidentiary standards necessary to defeat summary judgment on medical necessity grounds. The court recognized that treating physicians possess unique advantages in medical necessity disputes because they have examined the patient, reviewed diagnostic studies firsthand, and observed treatment response over time. This experiential knowledge cannot be replicated through paper review alone.

The decision reinforces that summary judgment motions in medical necessity cases require more than procedural compliance with peer review report formatting requirements. When a treating physician submits an affidavit that “meaningfully refers to” the peer review report and “sufficiently rebuts the conclusions set forth therein,” triable issues of fact emerge that preclude summary disposition. This standard protects healthcare providers from premature dismissal while recognizing the limitations inherent in retrospective paper reviews.

Courts applying Westcan Chiropractic have emphasized that the treating physician’s rebuttal must engage substantively with the peer reviewer’s specific criticisms rather than offering generalized assertions about treatment appropriateness. The rebuttal should identify factual errors in the peer review, explain clinical observations not reflected in written records, and articulate why the peer reviewer’s conclusions fail to account for the patient’s individual presentation and treatment response.

Practical Implications for Healthcare Providers

Providers facing peer review challenges must adopt strategic approaches to opposition papers. First, the treating physician’s affidavit should begin by identifying their qualifications and the nature and extent of their treatment relationship with the assignor. This establishes the foundation for their superior knowledge compared to the paper reviewer.

Second, the affidavit must directly reference the peer review report, quoting specific conclusions and then explaining why those conclusions are medically or factually incorrect. Generic statements that treatment was “necessary and appropriate” fail to create triable issues. Instead, the rebuttal should cite specific examination findings, objective test results, and clinical observations documented in contemporaneous records that contradict the peer reviewer’s assessment.

Third, providers should consider whether additional documentation might strengthen their opposition. While the treating physician’s affidavit may suffice, supplementing it with relevant medical literature, treatment guidelines, or evidence of the assignor’s subjective improvement can bolster the argument that peer review conclusions rest on incomplete analysis. The goal is demonstrating that reasonable physicians could reach different conclusions about treatment necessity based on the available evidence.

Key Takeaway

This case demonstrates that peer review reports, while powerful tools for insurance companies, can be successfully challenged through properly structured medical rebuttals. Healthcare providers must ensure their treating physicians submit detailed affidavits that specifically address and rebut the peer reviewer’s conclusions point by point, documenting clinical findings and treatment responses that the paper review failed to adequately consider. The treating physician’s direct patient contact and longitudinal observation provide evidentiary advantages that, when properly articulated, create triable issues of fact precluding summary judgment on medical necessity grounds.

Related Articles

• Understanding IME No-Shows in New York No-Fault Insurance: Rights, Consequences, and Strategic Considerations
• Understanding CPLR 3212(a): Critical Timing Rules for Summary Judgment Motions in New York
• The CPLR 3212(g) paradigm
• No-Fault Verification Requirements: When Partial Compliance Isn’t Enough
• New York No-Fault Insurance Law

Legal Update (February 2026): Since this 2015 post, New York’s no-fault insurance regulations under Section 5106 have undergone several amendments, particularly regarding peer review procedures, medical necessity standards, and documentation requirements for rebutting denials. Practitioners should verify current provisions of the Insurance Regulations and recent appellate decisions, as both substantive standards and procedural requirements for challenging peer review determinations may have evolved significantly.