A peer to peer review insurance process is one of the most effective but underutilized tools available for overturning insurance denials. When your health insurance company denies a claim based on medical necessity, your treating physician can request a direct conversation with the insurer’s medical director or reviewing physician. This doctor-to-doctor dialogue can resolve disputes that written appeals alone cannot.
Despite its effectiveness, many patients and even some physicians are unaware that peer to peer review insurance processes exist or how to initiate them. Understanding how peer-to-peer reviews work, when to request one, and how to prepare gives you a significant advantage in challenging a denial.
What Is a Peer-to-Peer Review?
A peer-to-peer review is a phone conversation between your treating physician and the insurance company’s medical reviewer. The purpose is to discuss the clinical merits of a denied service, treatment, or procedure. Your doctor explains why the service is medically necessary for your specific condition, and the insurer’s reviewer can ask questions, request clarification, or reconsider the denial based on the additional clinical context provided during the call.
Peer-to-peer reviews are typically available for denials based on medical necessity, which are among the most common types of insurance denials. They are not usually available for administrative denials like missing prior authorization or coding errors, which are better resolved through correction and resubmission. The review can occur at the prior authorization stage before treatment or after a claim has been denied post-service.
In many states, insurers are required to offer peer-to-peer reviews upon request. Even where not mandated by law, most major insurers have a process for scheduling them. The Affordable Care Act’s requirement that medical necessity decisions be made by qualified healthcare professionals creates a natural framework for this type of physician-level dialogue.
When to Request a Peer-to-Peer Review
The ideal time to request a peer-to-peer review is as soon as possible after a medical necessity denial. Many insurers set short windows for scheduling the call, sometimes as few as five to ten business days after the initial denial. If the denial involves a pre-service authorization for upcoming treatment, urgency is especially important to avoid treatment delays.
Peer-to-peer reviews are most effective when the denial appears to be based on incomplete information, a misunderstanding of the clinical situation, or an overly rigid application of clinical criteria. If your doctor believes the insurer’s reviewer did not have access to all relevant records or misinterpreted the medical evidence, a direct conversation can clear up the confusion more efficiently than a written appeal.
They are also valuable for complex cases where the clinical nuances are difficult to convey through medical records alone. Conditions with subjective symptoms, evolving treatment protocols, or comorbidities that complicate the clinical picture often benefit from the opportunity for real-time discussion between physicians.
How to Prepare for a Peer-to-Peer Review
Preparation is the key to a successful peer-to-peer review. Your physician should approach the call as a clinical consultation, not a casual conversation. Before the call, your doctor should review the denial letter and the specific clinical criteria the insurer applied, compile all relevant medical records including recent test results and imaging, prepare a concise summary of your diagnosis, treatment history, and the rationale for the denied service, and identify specific clinical guidelines or published research that support the treatment recommendation.
Your doctor should be ready to explain why the denied treatment is the appropriate next step given your specific clinical history. If conservative treatments have been tried and failed, this history should be documented and ready to discuss. If the insurer’s clinical criteria differ from widely accepted standards of care, your doctor should be prepared to address the discrepancy.
Some physicians bring a written outline to the call to ensure they cover all key points. This is particularly helpful for complex cases where multiple clinical factors support the treatment recommendation. The goal is to provide the insurer’s reviewer with enough specific clinical information to justify reversing the denial.
What Happens During the Call
The peer-to-peer review typically lasts 15 to 30 minutes. Your treating physician presents the clinical case for the denied service, and the insurer’s medical director asks questions and discusses the applicable criteria. The conversation is clinical in nature and focuses on whether the treatment meets the insurer’s medical necessity standards for your specific situation.
The insurer’s reviewer may overturn the denial during or shortly after the call if the clinical information is persuasive. In some cases, the reviewer may request additional documentation before making a final decision. If the denial is upheld after the peer-to-peer review, you still have the right to pursue a formal written appeal.
It is important to note that you, as the patient, are generally not part of the peer-to-peer call. This is a conversation between physicians. However, you can and should stay in close communication with your doctor’s office about the scheduling, preparation, and outcome of the review.
Tips for Maximizing Success
Choose the right physician for the call. The doctor who is most familiar with your condition and the denied treatment should make the call. If you are seeing multiple specialists, the one whose expertise is most directly relevant to the denial should participate. A specialist carries more weight than a primary care physician when discussing a specialty-specific treatment.
Timing matters. Request the peer-to-peer review promptly after the denial. The sooner the conversation happens, the fresher the clinical details are and the sooner a potential reversal can occur. Delays can also push you closer to appeal deadlines, reducing your options if the peer-to-peer review is unsuccessful.
Document the call. Your physician should note the date, time, duration, the name and specialty of the insurer’s reviewer, the topics discussed, and the outcome. If the denial is upheld, this documentation becomes part of your appeal record and demonstrates that you pursued every available avenue. For more on building a strong appeal, see our guide on how to successfully appeal an insurance denial.
Peer-to-Peer Reviews and the Formal Appeal Process
A peer-to-peer review does not replace the formal written appeal. If the peer-to-peer review results in an overturn, the denial is resolved and the claim is processed. If the denial is upheld, you still have the full appeal process available to you, including written internal appeals and external review.
In fact, having a documented peer-to-peer review that did not result in an overturn can strengthen your written appeal. Your appeal letter can reference the peer-to-peer conversation and explain why the insurer’s position remains incorrect despite the additional clinical context provided during the call. This shows the reviewer that you have been thorough and persistent in presenting your case.
Under ERISA, the peer-to-peer review does not usually count as a formal level of appeal. Your 180-day window to file a written appeal typically continues to run during and after the peer-to-peer process. Do not let the peer-to-peer review consume so much time that you miss your written appeal deadline. For templates and formatting guidance, see our appeal letter and appeal letter sample guides.
State Requirements for Peer-to-Peer Reviews
Several states have enacted laws requiring insurers to offer or conduct peer-to-peer reviews under certain circumstances. These laws vary in their specifics, including which types of denials qualify, the timeline for scheduling the review, and the qualifications required of the insurer’s reviewing physician.
Some states require that the insurer’s reviewer be a physician with the same or similar specialty as the treating physician requesting the review. Others require that the review occur within a specific number of business days of the request. Contact your state insurance department through the NAIC directory to learn about peer-to-peer review requirements in your state.
Frequently Asked Questions
Can I as the patient request a peer-to-peer review?
You can ask your physician to request one, but the actual call must be between physicians. Your role is to facilitate the process by informing your doctor about the denial, providing a copy of the denial letter, and encouraging your doctor’s office to schedule the review promptly. Stay in contact with the office to learn the outcome.
What if the insurer refuses to schedule a peer-to-peer review?
If the insurer refuses, document the refusal in writing and include it in your formal written appeal. In states that require peer-to-peer reviews, a refusal may constitute a regulatory violation that you can report to your state insurance department. Even without a state mandate, an insurer’s refusal to engage in clinical dialogue can be cited as evidence that the denial was not based on a thorough review.
Does a peer-to-peer review delay my treatment?
It can, which is why scheduling the review quickly is important. For urgent situations, ask your physician to request an expedited peer-to-peer review and emphasize the clinical urgency. Under ACA rules, expedited pre-service decisions must be made within 72 hours. If the treatment is truly urgent and delay would cause harm, your doctor should communicate this clearly to the insurer.
What if my doctor is too busy for a peer-to-peer review?
This is a common challenge. Physician time is limited, and scheduling a call with the insurer can be difficult. Explain to your doctor’s office how important the review is to your care and coverage. Some offices designate specific staff or have scheduled times for peer-to-peer calls. If your primary doctor cannot participate, ask if another physician in the practice with relevant expertise can handle the call.
Making the Most of This Opportunity
A peer to peer review insurance process offers a direct, efficient path to resolving medical necessity denials. It allows your physician to present your clinical case in a way that written records sometimes cannot fully capture. Work closely with your doctor to ensure the call is well-prepared and well-timed, and follow up with a formal written appeal if the denial is upheld. Our healthcare policy guide covers the broader regulatory landscape, and our articles on denied insurance claims and insurance disputes offer strategies for the full range of coverage challenges. The peer-to-peer review is one tool in a larger toolkit; use it wisely alongside the other options available to you.