A peer-to-peer review is a conversation between your treating clinician and a medical reviewer who works for your health plan, held after the plan has initially said no — or not yet — to a requested service. Your clinician explains your case directly, doctor to doctor, and the plan’s reviewer can approve the service on the call, ask for more information, or uphold the denial. It is one step inside the wider appeals process, and understanding where it fits can make a confusing letter much easier to act on.
Key Takeaways
- A peer-to-peer review is a clinician-to-clinician call about your specific case, usually arranged after an initial denial or a pending authorisation request.
- The call is normally requested and handled by your treating clinician’s office — patients are not usually on the line.
- Possible outcomes: the service is approved, more information is requested, or the denial stands.
- If the denial stands, your appeal rights remain: a peer-to-peer conversation does not use up your formal internal appeal or any external review.
- Your role is to know the step exists, ask your clinician’s office whether it is happening, and keep track of every letter and outcome.
- Exact procedures, forms, and timeframes come from your plan’s own letters and documents — they vary by plan and are not set out in general articles like this one.
Where the Peer-to-Peer Review Fits
Most denials start as paperwork. Your clinician requests authorisation for a service; the plan reviews the request against its criteria and the information submitted; sometimes the answer comes back as a denial, or as a request for more information, because the reviewer could not see enough clinical detail in the file. Our pillar guide to paying for breast cancer care walks through the whole landscape of authorisations, claims, and appeals, and our guide to reading an insurance denial letter shows how the plan explains its decision.
The peer-to-peer review sits between that first paper decision and a formal appeal. Its logic is simple: paper files are thin, and a short conversation lets the treating clinician supply the missing context — why this service, for this patient, at this point in treatment — directly to a clinician on the plan’s side. Many clinicians’ offices pursue it as a matter of routine after certain denials. Our article on prior authorisation explains the approval step that usually comes before it.
How the Conversation Usually Works
The practical sequence, in general terms, looks like this. The plan’s denial letter or notification tells your clinician’s office that a peer-to-peer conversation is available and how to arrange it — typically through a phone number or scheduling route given in the notice. Your clinician, or sometimes another qualified clinician in the same practice, speaks with the plan’s medical reviewer. They discuss the clinical reasoning: your diagnosis, what has been tried, and why the requested service fits your situation. The plan’s reviewer then decides whether the additional information changes the outcome.
| Step | Who acts |
|---|---|
| The plan denies a request or asks for more clinical information | The health plan |
| A peer-to-peer conversation is offered or requested | Usually your clinician’s office, using the route in the plan’s notice |
| The two clinicians discuss your case directly | Your clinician and the plan’s medical reviewer |
| A decision is made: approved, more information needed, or denial upheld | The health plan |
| The outcome is confirmed, and the next steps are explained | The plan, usually in writing |
How quickly all this happens, and the exact mechanics, depend on your plan and on the type of request — urgent situations are handled through the plan’s urgent routes, which your clinician’s office will know. Deliberately, this article states no timeframes: the plan’s own notice for your case is the document that governs, and working to the dates in your letters is the safe approach.
The Possible Outcomes
There are three broad outcomes. The reviewer may approve the service, having heard the clinical detail that was missing from the paper file; the authorisation is then issued and treatment can be scheduled. The reviewer may ask for more information — records, results, or a written explanation — after which the request is reconsidered. Or the reviewer may uphold the denial, concluding that the plan’s criteria are not met on the information available.
An upheld denial is disappointing, but it is not the end of the road, and it is important to understand why: a peer-to-peer review is an informal clinical conversation, not your formal appeal. Your clinician’s office handles these calls regularly and will usually tell you the outcome promptly. Whatever happens, ask for the outcome in writing or note the date, the name of the person who told you, and what they said — the paper trail matters if the case continues.
What Your Role Is
You will probably not be on the call, and you do not need to prepare a legal-style case. Your role is awareness and tracking:
- Know the step exists. If you receive a denial letter, ask your clinician’s office whether a peer-to-peer review will be requested and when.
- Make sure your clinician has what they need. If you have records from another provider — earlier scans, a second opinion — ask whether copies would help and how to get them to the office.
- Track everything. Keep the denial letter, note the dates of calls and who you spoke with, and save the written outcome.
- Ask what happens next in either event, so a delay never catches you by surprise.
If the process feels opaque, a hospital financial counsellor or patient navigator can explain where your case currently sits and what the plan’s letters mean; our article on hospital financial counsellors and navigators describes how to reach one.
If the Denial Stands
When a peer-to-peer review does not change the outcome, the formal routes remain open. The usual next step is an internal appeal — a written request asking the plan itself to reconsider, with your clinician’s supporting evidence. If the internal process also upholds the denial, an external review by an independent reviewer outside the plan may be available; your decision letters will describe which options apply to you. Where a decision is genuinely time-sensitive, our guide to expedited appeals explains how urgent requests are raised.
The deadlines in this territory matter and they come from your own letters, not from general information. If a letter’s instructions are unclear, call the plan, ask for the deadline and the required steps in plain language, and write down the answer with the date and the name of the person you spoke to. Rules vary by plan, by insurer, and by state; consumer information about coverage and appeals is published at healthcare.gov.
Questions to Ask
- (Your clinician’s office) Has a peer-to-peer review been requested for my case — and when is it expected to happen?
- (Your clinician’s office) Is there any information from me, or records from another provider, that would help?
- (Your clinician’s office) How will I hear the outcome, and how quickly?
- (Your plan) If the denial stands after the peer-to-peer review, what is my next step and what is the deadline in my letter?
- (Your plan) Can you send me the outcome and the reasons in writing?
- (Either) While this is being resolved, what should I do about appointments or treatment dates already booked?
Frequently Asked Questions
Can I be on the peer-to-peer call myself?
Usually not — the conversation is structured as clinician to clinician, so the medical reasoning can be discussed in clinical terms. Your contribution happens before and after: making sure your clinician has your complete records, and tracking the outcome. If you feel something important about your case is being missed, tell your clinician’s office so it can be raised on the call.
Does asking for a peer-to-peer review use up my appeal?
No. The peer-to-peer conversation is a step before, or alongside, the formal appeal process — it is not the appeal itself. If the denial is upheld, your internal appeal rights remain as described in your denial letter.
Who is the “peer” on the plan’s side?
Typically a clinician employed by or working for the health plan — often a physician — who reviews cases against the plan’s criteria. Your treating clinician presents the case; the plan’s reviewer makes the plan’s decision.
What if my doctor’s office does not offer to request one?
Ask them about it directly. You can say: “I read that a peer-to-peer review may be possible after a denial — is that an option in my case, and will the office request it?” Offices handle these routinely, and asking is a normal part of advocating for your care.
How long will the whole process take?
It depends on the plan, the type of request, and how the conversation is scheduled, so no general figure can be given here. Your plan’s notice and your clinician’s office can tell you what to expect in your case — and if a decision about your care genuinely cannot wait, tell both of them so the urgent routes can be used.
Related Articles
- Paying for Breast Cancer Care: A Complete Guide
- How to Read an Insurance Denial Letter
- Appealing a Health Insurance Denial for Breast Cancer Care
- Filing an Internal Appeal With Your Health Insurer: A Step-by-Step Walkthrough
- External Review: When an Independent Reviewer Looks at Your Appeal
- Expedited Appeals When Care Cannot Wait
This article is for general educational purposes only and is not medical, legal, or financial advice. It does not replace professional care. Talk to your doctor or care team about your own situation. If you think you may have a medical emergency, call 911.