Carelon Prior Authorization: How It Works and What to Expect

If your health plan uses Carelon for utilization management, you may encounter its prior authorization process before you can access certain medications, procedures, or services. Carelon prior authorization is the medical-review step performed by Carelon, the family of healthcare-services companies owned by Elevance Health (the insurer formerly known as Anthem). Understanding how Carelon reviews and approves requests can meaningfully shorten the gap between your doctor’s order and your treatment. Here is what patients and providers need to know.

Free Market Healthcare is an independent education site. We are not affiliated with, endorsed by, or sponsored by Carelon, Elevance Health, or Anthem. For the rules, timeframes, and contact information that apply to your coverage, use the phone number printed on your own member ID card and read your plan documents.

What Is Carelon and Why Does It Handle Prior Authorization?

Carelon is Elevance Health’s healthcare-services division — a group of companies that provide utilization management, medical-benefits management, behavioral health services, pharmacy benefits, and clinical decision support to health plans. Several familiar businesses were consolidated under the Carelon brand: the medical-benefits manager formerly known as AIM Specialty Health, the behavioral-health company formerly known as Beacon Health Options (now Carelon Behavioral Health), and the pharmacy benefit manager formerly known as IngenioRx (now CarelonRx). When your insurance is administered by Anthem Blue Cross Blue Shield, Empire BlueCross BlueShield, Wellpoint, or another Elevance Health plan, Carelon often handles the prior authorization process for medical services and certain medications.

Carelon prior authorization can apply to a range of services, including advanced imaging (MRI, CT, PET, and nuclear medicine studies), specialty medications, some outpatient surgeries, inpatient admissions, genetic and molecular testing, cardiology and radiation-oncology programs, sleep studies, and certain durable medical equipment. The specific services that require authorization depend on your plan design — not every Elevance-affiliated plan uses Carelon for the same categories, and some plans use other vendors for particular services. Because this varies, the safest move is to confirm requirements for your plan before a non-emergency service.

Carelon’s stated purpose is to confirm that services are medically necessary and consistent with evidence-based clinical guidelines. In practice, that means your doctor must show that a requested service meets specific criteria before the plan agrees to pay for it. Prior authorization is a coverage-and-payment review; it is not the same as a clinical decision about whether you may receive care.

How to Submit a Carelon Prior Authorization Request

Prior authorization requests are submitted by your healthcare provider or their staff, not by you as the patient. Still, understanding the process helps you advocate for a timely resolution and spot delays early.

Online submission (preferred): Providers submit requests through the applicable provider portal — commonly Availity or a Carelon-specific portal, depending on the plan and service type. Online submission is generally the fastest method and allows real-time status tracking. The portal guides the provider through the required fields, including diagnosis codes, clinical rationale, and supporting documentation.

Phone submission: Providers can call the prior authorization line for your plan. The correct number varies by plan and service type — imaging, pharmacy, behavioral health, and medical/surgical reviews often route to different lines. Your provider’s office should have the right number for your plan. As a member, the number on the back of your insurance ID card is always the correct starting point for questions about your own coverage. (We deliberately do not publish a phone number here, because the right one depends on your plan and can change; your ID card is the authoritative source.)

Fax submission: Some providers still submit PA requests by fax, particularly for complex cases requiring extensive documentation. Fax numbers are available through the provider portal or plan-specific resources.

Regardless of the method, a complete submission generally includes your diagnosis and relevant clinical history, the specific service or medication being requested, the clinical rationale for why it is medically necessary, any prior treatments tried and why they were insufficient, and supporting documentation such as lab results, imaging reports, or specialist notes.

What Documentation Strengthens a Carelon PA Request

Incomplete submissions are the most common cause of delays and denials. Providers who submit thorough documentation from the start tend to see faster approvals. Key elements include:

Detailed clinical notes: Not just the diagnosis — include the severity, duration, and functional impact of the condition. For advanced imaging, explain what the physical exam and initial workup revealed and why imaging is the logical next step.

Prior treatment documentation: If the requested service is a second-line treatment, document exactly which first-line options were tried, for how long, at what dose, and why they were inadequate. Specific clinical data showing an insufficient response is more persuasive than vague statements like “patient did not respond.”

Evidence-based guidelines: Referencing professional-society guidelines or peer-reviewed literature that supports the request strengthens the case. If a specialty society recommends a particular test for a specific clinical scenario, citing that guideline helps.

Peer-to-peer readiness: For complex or non-standard requests, Carelon may offer a peer-to-peer review — a phone call between the requesting clinician and a Carelon medical director. Being prepared for that conversation with organized clinical data can improve the outcome.

Decision Timelines (and How the 2026 Rules Changed Them)

Carelon prior authorization decisions follow timelines set by federal and state regulations and by plan-specific requirements. A major federal change took effect in 2026, so the numbers below reflect the current landscape — but always verify the exact deadline that applies to your plan.

Standard (non-urgent) requests: Historically decided within a few business days. Under the CMS Interoperability and Prior Authorization final rule (CMS-0057-F), impacted government payers — Medicare Advantage plans, Medicaid and CHIP (both fee-for-service and managed care), and Qualified Health Plans on the federal Marketplace — must issue standard pre-service decisions within 7 calendar days, a requirement that took effect January 1, 2026. Commercial and employer plans set their own standard timeframes, which vary.

Urgent/expedited requests: When a delay could seriously jeopardize your health, expedited requests are decided faster. Under CMS-0057-F, impacted payers must decide expedited requests within 72 hours. The provider must flag urgency at submission and provide clinical justification for the expedited timeline.

Specific reasons for denials: Also beginning in 2026, CMS-0057-F requires impacted payers to provide a specific reason for any denied prior authorization, regardless of how the request was submitted. This makes it easier to understand what was missing and to respond effectively.

Retrospective reviews: For services already provided (often after emergencies), retrospective reviews are completed under the timeframes in your plan and applicable law.

If a decision is not issued within the required timeframe, some plans and state laws treat the request as approved by default — but do not assume this. Track the status through the provider portal or by calling the member services number on your ID card, and keep dated records of every submission and follow-up.

How Members Are Affected

Even though providers do the paperwork, prior authorization directly shapes your experience of care. It can add days between an order and a scheduled procedure, so ask your doctor whether a service needs authorization before you book it. You will receive written notice of the decision, and if a service is denied you have appeal rights (below). If you go ahead with a non-emergency service before authorization is granted, you may be responsible for the full cost — another reason to confirm status first. Keeping a simple log of dates, reference numbers, and the names of people you speak with makes any later appeal far easier.

What Happens If Carelon Denies Your Request

A denial triggers a formal notification letter explaining the reason and citing the clinical criteria that were not met. You and your provider both receive this notice. From there, you have several options:

Peer-to-peer review: Before filing a formal appeal, your doctor can request a peer-to-peer conversation with the medical director who made the decision. This is a chance to present additional clinical context and potentially reverse the denial without a formal appeal.

First-level appeal: Submit a written appeal within the timeframe specified in the denial letter. Include additional clinical documentation, updated test results, and a detailed letter of medical necessity from your treating physician. Industry and regulator data consistently show that a meaningful share of appealed prior-authorization denials are overturned, so appealing is often worthwhile.

External review: If the internal appeal is denied, most plans offer an external review by an independent review organization (IRO) that has no affiliation with Carelon or your insurer. In many situations, the external reviewer’s decision is binding on the plan.

State insurance department or regulator complaint: If you believe a denial violates the rules governing your plan, you can file a complaint with your state’s department of insurance (for state-regulated plans) or the appropriate federal regulator. This does not replace the appeal process but can prompt regulatory scrutiny.

Carelon Prior Authorization for Specific Services

Advanced imaging: Carelon uses evidence-based criteria to evaluate MRI, CT, PET, and nuclear medicine requests. Common approval criteria include failure of conservative treatment, red-flag symptoms warranting urgent evaluation, and clinical findings consistent with guideline-recommended imaging.

Specialty medications: For high-cost drugs, review may be coordinated with the plan’s pharmacy benefit manager (CarelonRx for many Elevance plans). This includes biologics, oncology drugs, and other specialty medications typically dispensed through specialty pharmacies. Documentation requirements are extensive and can include genetic testing results, pathology reports, or disease-activity scores.

Behavioral health: Carelon Behavioral Health handles review for inpatient psychiatric admissions, residential treatment, intensive outpatient programs, and certain outpatient services. Clinical criteria focus on symptom severity, risk of harm, and the appropriateness of the requested level of care. Federal mental-health parity rules require that these standards be no more restrictive than those for comparable medical care.

Surgical procedures: Elective surgeries with conservative alternatives (such as some joint replacements or bariatric surgery) frequently require authorization. Documentation should show that non-surgical options have been tried and that you meet the clinical criteria.

Frequently Asked Questions

How do I check the status of a Carelon prior authorization?

Providers can check status through the applicable provider portal. As a patient, call the member services number printed on your insurance card and ask for the PA status, or ask your doctor’s office to check on your behalf through the provider portal. There is no single universal phone number — the correct one depends on your plan and is on your ID card.

Does Carelon handle prior authorization for all Anthem and Elevance plans?

Carelon performs utilization management and medical-benefits management for many Elevance Health plans, but not for every service on every plan. Some plans use different vendors for specific service categories. Check your plan documents or call member services to confirm which entity reviews PA for your specific service.

Can I submit a prior authorization request myself?

Generally no. Prior authorization is submitted by a licensed provider. But you can follow up on status, make sure your provider submitted the request promptly, and supply patient-facing information (like a medication history) that supports the request.

What if I need emergency care — is prior authorization required?

Emergency services do not require prior authorization. The federal Emergency Medical Treatment and Labor Act (EMTALA) and plan rules ensure emergency care is handled regardless of PA status. Follow-up care after the emergency may still require prospective or retrospective authorization.

Did the 2026 rules speed up decisions?

For impacted government payers, yes. Under CMS-0057-F, expedited requests must be decided within 72 hours and standard requests within 7 calendar days beginning January 1, 2026, and payers must give a specific reason for denials. A Prior Authorization API that streamlines electronic submissions is required by January 1, 2027. Commercial and employer plans set their own timeframes, so confirm the deadline that applies to you.

Making the Process Work for You

The Carelon prior authorization process is bureaucratic, but it does not have to derail your care. Ask your doctor to check PA requirements before ordering a non-emergency service. Make sure the initial submission includes complete, evidence-based documentation. Follow up promptly to confirm receipt and processing, and keep dated notes and reference numbers. If a request is denied, use the peer-to-peer option before escalating to a formal appeal, and remember that external review is available if the internal appeal does not succeed.

For broader context on prior authorization across different insurers and PBMs, see our guides to prior authorization for medication and Medicare prior authorization. For the policy perspective, visit our healthcare policy guide.

Sources

• Carelon (carelon.com) — company overview and service lines, including Medical Benefits Management, Behavioral Health, and Pharmacy Services (CarelonRx)
• Elevance Health — corporate materials describing Carelon as its healthcare-services brand (formerly AIM Specialty Health, Beacon Health Options, and IngenioRx)
• Centers for Medicare & Medicaid Services (CMS) — Interoperability and Prior Authorization Final Rule (CMS-0057-F) fact sheet: impacted payers, expedited 72-hour and standard 7-calendar-day decision timeframes and specific-denial-reason requirements effective Jan 1, 2026, and Prior Authorization API required by Jan 1, 2027
• CMS / Medicare Advantage — coverage-decision timeframe rules for pre-service organization determinations
• Emergency Medical Treatment and Labor Act (EMTALA) — emergency services are furnished regardless of prior-authorization status