Learn About eviCore Prior Authorization and Medical Review

What eviCore Does in the Healthcare System

eviCore is a company that manages something called "prior authorization" and "medical review" for insurance plans. To understand what that means, imagine you visit your doctor and they recommend a specific treatment—maybe an MRI scan, a surgery, or a particular medication. Before your insurance company will pay for it, they often want someone to review whether that treatment makes sense for your situation. That's where eviCore comes in.

Learn About Dry Brushing for Skin Health →

The company operates as a third-party reviewer for hundreds of health insurance plans across the United States. Insurance companies hire eviCore to look at treatment recommendations and decide whether to approve them before the patient receives care. This process is called prior authorization. eviCore doesn't make the final decision—the insurance company does—but eviCore reviews the medical information and makes a recommendation based on clinical guidelines and the patient's medical history.

eviCore handles medical reviews for a wide range of services. These include imaging studies like X-rays and MRIs, surgeries and procedures, certain medications, rehabilitation services, and mental health treatments. The company processes hundreds of thousands of review requests each year. According to publicly available data, eviCore reviews more than 5 million cases annually across various medical specialties.

The company operates in all 50 states and works with major insurance plans, including Medicare Advantage plans, commercial insurance, and workers' compensation plans. Some people interact with eviCore without even knowing it—their doctor submits a request, eviCore reviews it behind the scenes, and the insurance company sends an approval or denial.

Practical takeaway: If your doctor says they need to get "prior authorization" before providing treatment, eviCore may be the company reviewing that request. Knowing this helps you understand where delays or questions might come from in your healthcare process.

How the Prior Authorization Process Actually Works

Prior authorization starts when a healthcare provider—a doctor, surgeon, hospital, or other medical professional—believes a patient needs a specific treatment or service. The provider collects medical information: test results, imaging, the patient's medical history, the reason for the treatment, and any previous treatments tried. This information gets compiled into a request.

Understanding Medicare Reimbursement for Doctors and Hospitals →

The provider or their staff submits this request to the patient's insurance company. Sometimes the insurance company handles the review directly. Other times, they send it to eviCore. eviCore's medical reviewers (who are licensed healthcare professionals like doctors or nurses) examine the information within a specific timeframe, usually 24 to 72 hours depending on whether the case is considered routine or urgent.

The reviewer checks the request against established clinical guidelines. These guidelines come from medical organizations, research, and industry standards. For example, if a doctor requests an MRI for a patient with lower back pain that started three days ago, the reviewer might check whether current guidelines recommend imaging that early or suggest waiting. The reviewer considers the patient's age, medical history, previous treatments, and whether the treatment is medically necessary for their specific situation.

After review, eviCore communicates a recommendation back to the insurance company. The options typically are: approved (the insurance will cover it), denied (the insurance won't cover it based on the guidelines), or conditional approval (approval if certain conditions are met, like trying a different treatment first). The insurance company then notifies the patient and provider of the decision.

If a request is denied, most insurance plans allow an appeal. The patient or provider can ask for a second review, sometimes by a different reviewer. This appeals process is an important safety check in the system.

Practical takeaway: The prior authorization process typically takes 24 to 72 hours. Knowing this timeline helps you plan for when you might expect an answer about whether your insurance will cover a recommended treatment.

Types of Medical Services eviCore Reviews

eviCore doesn't review every medical service. Insurance companies decide which types of care need prior authorization, and eviCore focuses on the categories that account for high costs or high variation in how doctors order them. Understanding what falls under eviCore's scope helps you know when to expect a review process.

Learn About Raising Hemoglobin Levels With Diet →

Diagnostic imaging is one major category. This includes MRI (magnetic resonance imaging), CT scans, PET scans, and advanced ultrasounds. These are expensive tests, and doctors sometimes order them when simpler or less costly options might work first. eviCore reviewers check whether the imaging is appropriate for the patient's symptoms and medical history.

Surgical and procedural interventions are another large category. This covers surgeries like joint replacements, back surgeries, and various minimally invasive procedures. Reviewers examine whether surgery is truly necessary or whether non-surgical treatments should be tried first. For example, for knee pain, guidelines often recommend physical therapy before approving knee surgery.

Mental health and substance use services fall under eviCore's purview for many plans. This includes inpatient psychiatric hospitalization, intensive outpatient programs, and certain medication-assisted treatments. The company reviews these to ensure the level of care matches the patient's needs.

Rehabilitation services—physical therapy, occupational therapy, and speech therapy—often require prior authorization. Reviewers check the medical necessity and often have guidelines about how many sessions are appropriate for specific conditions.

Certain medications also require prior authorization, particularly expensive biologics, specialty medications, and drugs used for chronic conditions. The reviewer ensures the medication is appropriate for the patient's diagnosis and that the patient hasn't already tried other, less expensive options.

Sleep studies, cardiac procedures, orthopedic interventions, and pain management treatments round out common categories eviCore reviews. The specific services reviewed vary by insurance plan—some plans require authorization for more services than others.

Practical takeaway: If your doctor recommends imaging, surgery, mental health treatment, rehabilitation, or a specialty medication, there's a reasonable chance it will require prior authorization through eviCore or a similar company. Asking your doctor upfront about authorization requirements saves time later.

What Happens When Prior Authorization Gets Denied

A denial from prior authorization doesn't mean the patient can't receive the treatment—it means the insurance company won't pay for it. This creates a difficult situation for patients and providers. Understanding the denial and the options that follow matters significantly.

Learn About Tricare and Military Health Coverage for Veterans →

Denials happen when the eviCore reviewer determines the treatment doesn't meet the insurance plan's clinical guidelines or medical necessity criteria. This might mean the reviewer believes the patient should try a less expensive treatment first, or that the medical evidence doesn't support the treatment for that particular condition, or that the patient's symptoms don't yet warrant that level of intervention.

For example, eviCore might deny a request for shoulder surgery if the patient has only had shoulder pain for two weeks and hasn't tried physical therapy yet. The clinical guideline might state that physical therapy should be attempted for at least 6 to 8 weeks before surgery. This isn't necessarily a bad decision—it often reflects best medical practices—but it does delay the patient's treatment.

When a denial occurs, the patient and provider receive written notification explaining the reason. The notification should include information about the appeal process. Most insurance plans allow at least one level of appeal, and some allow multiple levels. An appeal means asking for another review, either by the same company (internal appeal) or by an independent reviewer outside the insurance company (external appeal).

During an appeal, the provider can submit additional medical information that might not have been included in the original request. New test results, imaging showing worsening of the condition, or a letter from the treating doctor explaining why the recommended treatment is necessary can sometimes change the outcome.

If the insurance plan continues to deny coverage after appeal, the patient has options. They can pay out-of-pocket for the treatment. They can seek a second opinion from another doctor. In some cases, state insurance regulations allow patients to appeal to an independent external reviewer. Some states also have requirements that allow urgent cases to bypass certain authorization steps.

Practical takeaway: A prior authorization denial isn't final. Understanding the appeal process and your right to request additional review is crucial if you believe the denial was incorrect or if your condition has changed.

How to Navigate the Prior Authorization Process

While Education Buzz can't help you through the prior authorization process directly, understanding the mechanics helps you navigate it more effectively. Here's how patients typically move through this system.

Free Guide to Contacting Adapt Health by Phone →

First, when your doctor recommends a treatment, ask directly: "Will this need prior authorization?" Most practices know which procedures, tests, and medications