Appealing an EviCore PA denial for Cigna requires a four-level process that runs entirely through EviCore — not Cigna's National Appeals Unit in Chattanooga. The sequence is: P2P consultation → formal reconsideration → formal written appeal to EviCore → Cigna NAU escalation only after EviCore is exhausted. Sending the appeal directly to Cigna's NAU gets it returned unfiled. EviCore-specific clinical guidelines, not Cigna CPGs alone, govern the merit review at every level.
Why EviCore Appeals Require a Separate Process
EviCore is a Cigna-owned specialty benefit management company operating under the Evernorth umbrella. For most outpatient specialty services — imaging, musculoskeletal surgery, oncology, cardiology, and more — Cigna has delegated clinical review authority to EviCore. That delegation is total: EviCore issues the denial, and EviCore handles the appeal.
The critical consequence is that Cigna's National Appeals Unit in Chattanooga has no jurisdiction over EviCore-delegated denials until the full EviCore appeal process is exhausted. Practices that mail EviCore denial appeals to the Cigna NAU address receive a procedural rejection — the appeal is returned unfiled, with no clinical review of the merits. Meanwhile, the EviCore P2P window and reconsideration window continue to close.
According to the AMA's 2024 Prior Authorization Physician Survey (n=1,004 physicians), prior authorization requirements delay necessary care for 93% of patients and contribute to treatment abandonment in 82% of cases. EviCore manages some of Cigna's highest-volume specialty PA categories — and routing errors on those denials represent some of the most preventable revenue losses in independent practices.
The Most Common Routing Error
Filing an EviCore denial with Cigna's National Appeals Unit (PO Box 188011, Chattanooga, TN 37422) results in procedural rejection — the NAU does not adjudicate EviCore-managed denials. The appeal must go to EviCore first. Cigna's NAU is only the escalation point after EviCore's appeal process is fully exhausted.
EviCore's Service Scope Under Cigna in 2026
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EviCore's scope for Cigna commercial plans expanded significantly effective March 7, 2026. Current EviCore-delegated services include:
- Advanced radiology — CT, MRI, PET, CT angiography, MRA, nuclear imaging, and high-tech imaging with site-of-care review
- Musculoskeletal (MSK) — Joint replacement, spine surgery, interventional pain management, and physical therapy authorization
- Cardiovascular imaging and procedures — Cardiac CT, stress echocardiography, nuclear stress tests, cardiac catheterization
- Medical oncology — Chemotherapy regimen precertification, clinical trial authorization, drug PA
- Radiation oncology — Outpatient radiation treatment precertification, including SBRT and proton therapy
- Gastroenterology — Colonoscopy frequency, upper endoscopy, esophagoscopy
- Genetics and genomic testing — Hereditary cancer panels, pharmacogenomics, whole exome sequencing
- Sleep medicine — Polysomnography, CPAP initiation and resupply
- Laboratory management — Specialized and high-cost laboratory precertification
- Home health — Home infusion therapy and care coordination (primarily Cigna commercial)
March 2026 expansion: Effective March 7, 2026, Cigna delegated approximately 600 additional CPT codes to EviCore, including experimental/investigational/unproven (EIU) procedures, outpatient surgery codes, unlisted procedure codes, and certain cosmetic procedure codes. Practices submitting any of these newly delegated codes directly to Cigna are now using the wrong appeal channel.
For services transferred from EviCore to HealthSpring effective January 1, 2026 — including Post-Acute Care (skilled nursing, inpatient rehab, LTAC) and Durable Medical Equipment — appeals route through HealthSpring via Availity (payer ID 52192), not through EviCore. Always confirm the review organization from the denial letter before submitting.
How to Confirm Whether Your Denial Is EviCore-Managed
Read the denial letter header. If the reviewer is identified as EviCore or "EviCore Healthcare," and the phone number on the letter begins with an EviCore line (such as 1-866-668-9250 for Cigna commercial), the appeal goes to EviCore. If the header references Cigna's National Appeals Unit or Cigna Healthcare directly, use the Cigna NAU address. If the letter is ambiguous, call the number printed on it and confirm before submitting anything.
The 4-Step EviCore Appeal Ladder
EviCore post-denial options have four levels. Each level has a distinct submission method, timeline, and purpose. Working them in order preserves all downstream rights — skipping a level forfeits options that cannot be recovered.
Step 1: Request a Peer-to-Peer Consultation
A peer-to-peer (P2P) consultation is the first and highest-leverage post-denial option. It connects the ordering physician directly with an EviCore Medical Director from the same specialty — and many cases are reversed at this stage without requiring a formal written submission.
Request P2P as soon as the denial arrives. Available options narrow as time passes, and some health plan contracts specify short P2P eligibility windows. To request:
- Online: Log in at evicore.com/provider, navigate to the denied case in Authorization Lookup, and select "P2P/Post-Decision Options."
- Phone: Call 1-866-668-9250 (Cigna commercial) and state you are requesting a clinical consultation for a denied EviCore case. Have the EviCore case reference number from the denial letter ready.
The ordering physician — not billing staff — must participate in the call. Billing staff can schedule the appointment and prepare documentation, but the physician must be present when EviCore schedules the review.
Bring to the P2P call:
- EviCore case reference number
- The specific EviCore clinical criterion cited for denial
- Objective clinical findings that directly satisfy that criterion
- Prior treatment history, including attempts and outcomes where step therapy is involved
- One or two key peer-reviewed citations supporting the clinical approach
Ask Whether the P2P Can Change the Decision
EviCore distinguishes between P2P consultations that can produce a reconsidered determination and those that are "educational only" — the Medical Director explains the denial criteria but is not authorized to reverse the decision. Ask explicitly at the start of the call: "Can this consultation result in a changed determination?" If the answer is educational only, end the call and move immediately to Step 2 rather than waiting for a confirmation letter.
Step 2: Submit a Formal Reconsideration with Additional Clinical Information
If the P2P does not resolve the denial, the next step is a formal reconsideration — a structured submission of additional clinical information to EviCore for re-review. This is distinct from a formal written appeal.
Reconsideration allows practices to submit clinical evidence that was not included in the original PA request — new diagnostic findings, updated chart notes, relevant clinical literature, or specialist attestation. EviCore will evaluate whether the additional information satisfies the specific criterion cited in the denial.
Submit via:
- Portal: evicore.com/provider — use the Authorization Lookup tab and select the reconsideration option for the denied case
- Fax: Use the fax number specified for the health plan program on the determination notice
The reconsideration window varies by health plan and line of business — check the determination notice for the specific deadline, as some plans have windows as short as 14 calendar days from the denial date. Do not assume the 180-day commercial appeal window applies to reconsideration.
Step 3: File a Formal Written Appeal to EviCore
If reconsideration is upheld or unavailable, submit a formal written appeal. This is the full clinical merits review — the appeal must directly address the specific EviCore clinical guideline cited for denial, not just restate clinical context.
Submission address:
EviCore Claim Appeals
P.O. Box 5620
Hartford, CT 06102
Online portal: evicore.com/provider (faster than mail; confirmation of receipt)
What to include in the formal appeal:
- EviCore case reference number, member ID, date of denial
- Denial letter (identifies the clinical criterion at issue)
- Complete chart notes for the date of service and relevant clinical history
- Citation of the specific EviCore clinical guideline criterion and documentation showing the patient meets it
- The relevant Cigna Medical Coverage Policy if available — EviCore reviews against its own criteria, but including the Cigna CPG reference adds policy grounding
- Peer-reviewed clinical literature published within the last five years
- Professional society guideline recommendation (NCCN, ACC, AAOS, ACR, etc.) with year and grade
- Signed physician attestation letter from the ordering physician
Decision timelines:
- Standard formal appeal: 30 calendar days from receipt (or sooner per applicable state or federal requirements)
- Expedited appeal: 72 hours when a standard timeline would seriously jeopardize the patient's health or ability to regain maximum function
For a template letter framework adapted to EviCore's clinical guideline format, see the Cigna appeal letter template guide.
Step 4: Escalate to Cigna's National Appeals Unit (Only After EviCore Is Exhausted)
If EviCore upholds the formal written appeal, the case can now move to Cigna's National Appeals Unit — but only at this point. This step is available for most EviCore-managed Cigna commercial denials where the internal EviCore process has been fully exhausted.
Cigna NAU mailing address:
Cigna National Appeals Unit
PO Box 188011
Chattanooga, TN 37422
(GWH-Cigna "G" prefix ID plans: PO Box 188062)
Online portal: CignaforHCP.com or Provider.Evernorth.com
When submitting to the Cigna NAU as an escalation step, include the complete EviCore appeal record: the original denial, any P2P documentation, the formal reconsideration submission and response, and the EviCore formal appeal decision. The Cigna NAU review is a second-level internal review; including the complete EviCore record allows the reviewer to evaluate the full clinical history rather than just the original denial.
How EviCore Clinical Guidelines Differ from Cigna CPGs
Understanding which criteria govern EviCore decisions is the single most important factor in writing an effective appeal.
EviCore uses its own proprietary clinical evidence guidelines — organized by specialty program and available publicly at evicore.com/provider/clinical-guidelines. These guidelines are developed against standards from URAC and NCQA and reference sources including the American College of Radiology (ACR), the American College of Cardiology (ACC), NCCN, and the American Academy of Orthopaedic Surgeons (AAOS).
Cigna Coverage Policy Guidelines (CPGs) — found at the Cigna policy index — apply when Cigna's own UM team makes the denial decision. For EviCore-managed denials, the CPG is secondary documentation; the EviCore clinical guideline is the primary criterion the reviewer will evaluate against.
In practice, this means:
- Pull the applicable EviCore clinical guideline for the service before drafting anything — find it by selecting "EviCore by Evernorth" in the health plan search at evicore.com/provider/clinical-guidelines
- Identify the specific criterion the denial was based on (the denial letter should cite it by name or number)
- Build the clinical argument by walking through that criterion point-by-point with the patient's objective findings
- Add the relevant Cigna CPG as supplementary support
- Do not write an appeal that only addresses the Cigna CPG without engaging the EviCore guideline — EviCore reviewers evaluate against EviCore criteria, and a CPG-only appeal reads as if the submitter did not read the denial
EviCore Clinical Guidelines Are Publicly Available
EviCore publishes its full clinical guideline library for free at evicore.com/provider/clinical-guidelines. Providers do not need to call EviCore or request the criteria — they are downloadable PDFs organized by specialty. The guidelines include background, evidence citations, and the exact criteria used in coverage determinations. Reading the applicable guideline before submitting a PA request is the most effective way to avoid denials in the first place.
For a detailed walkthrough of the P2P consultation process across all major insurers, including preparation strategies and what to say when the Medical Director raises specific objections, see peer-to-peer review for insurance denials.
Appeal Documentation Checklist for EviCore Cigna Denials
| Document | Required For | Where to Find It | Notes |
|---|---|---|---|
| EviCore denial letter | All levels — defines the criteria at issue | Received from EviCore | Look for EviCore header, case number, and specific criterion cited |
| EviCore case reference number | All levels — required to identify the case | Denial letter | Do not submit without this; Cigna claim numbers are different |
| EviCore clinical guideline for the service | Formal reconsideration and appeal | evicore.com/provider/clinical-guidelines — search by specialty | Download the applicable 2026 version; guideline changes quarterly |
| Complete chart notes for date(s) of service | All appeal levels | Internal medical records | Include objective findings, not just diagnosis codes |
| Prior treatment history with dates and outcomes | Cases with step-therapy criteria | Internal records | Restating this in the appeal strengthens 'clinically appropriate' argument |
| Cigna Medical Coverage Policy (CPG) | Formal appeal — supplementary | static.cigna.com/assets/chcp/resourceLibrary/coveragePolicies/index.html | Cite alongside EviCore guideline; CPG alone is insufficient |
| Peer-reviewed clinical literature | Formal reconsideration and appeal | PubMed, NEJM, JAMA | Within last 5 years; cite by author, journal, year, PMID |
| Professional society guideline | Formal appeal | NCCN, ACC, ACR, AAOS, etc. | Include year, recommendation grade, and specific statement |
| Signed physician attestation letter | Formal appeal | Ordering physician's office | Must be signed by ordering physician, not billing staff |
| P2P documentation (if conducted) | Cigna NAU escalation | From P2P scheduling records | Demonstrates EviCore appeal ladder was properly worked |
| Prior authorization approval history (if any) | Recurring denials | Internal tracking / payer portal history | Helpful when same service was previously authorized |
EviCore and Cigna NAU Appeal Reference
| Level | What It Is | Submit To | Window | Decision Time |
|---|---|---|---|---|
| 1 — P2P Consultation | Physician-to-physician clinical discussion | evicore.com/provider or call 1-866-668-9250 | Request promptly — window varies by plan | Typically same session or next business day |
| 2 — Formal Reconsideration | Structured review with additional clinical info | evicore.com/provider portal or fax per denial letter | Often ~14 calendar days — confirm from denial notice | Varies by plan |
| 3 — Formal Written Appeal to EviCore | Full merits review against EviCore clinical guidelines | EviCore Claim Appeals, P.O. Box 5620, Hartford CT 06102 or portal | Confirm deadline from denial notice | 30 days standard; 72 hrs expedited |
| 4 — Cigna NAU Escalation | Second-level internal review after EviCore denial | PO Box 188011, Chattanooga TN 37422 or CignaforHCP.com | 180 days from original denial (commercial) | 30 days standard; 72 hrs expedited |
| External Review (fully-insured plans) | Independent review organization review | Per state DOI or denial letter | 60–120 days from final internal denial (state-specific) | 45–60 days (IRO) |
The filing deadline for the formal written appeal (Level 3) is specified in the determination notice and varies by health plan contract — do not apply Cigna's standard 180-day commercial deadline to EviCore cases without confirming it on the notice. Some EviCore plan-specific windows are shorter.
How Muni Appeals Handles EviCore Cigna Denials
The four-level EviCore appeal ladder creates multiple points where denials fail procedurally before anyone reviews the clinical argument. Muni Appeals identifies EviCore-managed cases from the determination notice, confirms whether the case is in the current P2P window or has moved to reconsideration or formal appeal, and routes the package to the correct address and portal.
For EviCore-specific appeals, Muni handles:
- Identification of the applicable EviCore clinical guideline — pulled from the current 2026 guideline library, not outdated criteria
- Clinical argument built criterion-by-criterion against what EviCore cited for denial, not generic medical necessity boilerplate
- Supplementary Cigna CPG reference included alongside EviCore guideline citations
- Timeline tracking across P2P eligibility, reconsideration window, formal appeal deadline, and Cigna NAU escalation window
- Submission-ready appeal packages formatted for EviCore portal submission or fax
- Escalation to Cigna NAU once EviCore's process is fully exhausted — with the complete EviCore appeal record attached
For guidance on what happens when a Cigna denial was not EviCore-managed, see how to appeal a Cigna prior authorization denial. For the full clinical documentation and CPG citation approach for Cigna medical necessity denials specifically, see Cigna medical necessity denial appeal.
Frequently Asked Questions
What is the difference between EviCore reconsideration and a formal EviCore appeal?
Formal reconsideration is a re-review based on additional clinical information submitted after the initial denial — it typically has a shorter window (often around 14 days) and is designed for cases where key documentation was missing from the original PA request. A formal written appeal is a full merits challenge to EviCore's clinical determination, submitted to EviCore Claim Appeals with a complete clinical package. Reconsideration is faster and less formal; a written appeal creates a reviewable record for escalation.
Can I file directly with Cigna's National Appeals Unit for an EviCore denial?
No. The Cigna NAU has no authority to adjudicate EviCore-delegated denials until EviCore's internal appeal process has been exhausted. Filing with the NAU before exhausting EviCore results in procedural rejection without clinical review. The NAU is the Step 4 escalation point — not an alternative to EviCore's process.
Where can I find EviCore's clinical guidelines for Cigna?
EviCore's clinical guidelines are publicly available at evicore.com/provider/clinical-guidelines — no login required. Search by "EviCore by Evernorth" in the health plan field and select the specialty program that matches the denied service. The guidelines are downloadable PDFs and include the exact criteria EviCore uses for coverage determinations. Download the current 2026 version before drafting any appeal — guidelines are updated quarterly and the version in effect at the time of review may differ from earlier editions.
How quickly must I request an EviCore peer-to-peer after a denial?
Request P2P as soon as the denial arrives. EviCore's P2P eligibility windows vary by health plan contract and line of business — there is no universal deadline, but available options narrow as time passes. For some plans the window is as short as a few business days. The determination notice will specify available post-decision options. Do not wait to gather documentation before requesting the P2P appointment — you can prepare in the days between scheduling and the call.
Does requesting a P2P consultation with EviCore waive my formal appeal rights?
No. A P2P consultation is separate from the formal reconsideration and appeal process. If the P2P does not produce a changed determination, your right to submit a formal reconsideration and written appeal remains intact. Similarly, completing a formal reconsideration that is upheld does not waive the right to file a formal written appeal at Level 3. Each level is distinct and sequential.
What happens if EviCore's formal appeal deadline has passed?
If the EviCore formal appeal window has closed, Level 3 is no longer available. However, the Cigna NAU escalation path (Level 4) runs from the original denial date under the Cigna commercial appeal timeline — check that deadline separately. Depending on the plan type and state, external review through the state DOI may also be available to the member as a separate path. For guidance on independent review organization options, see independent review organization appeal guide.
Does EviCore manage Cigna Medicare Advantage PA denials differently?
Yes. Following Cigna's Medicare Advantage transition effective January 1, 2026, Cigna MA PA functions migrated from EviCore to HealthSpring (Availity payer ID 52192). The EviCore 4-level process described in this guide applies primarily to Cigna commercial plans. For Cigna MA denials, confirm the review organization from the denial notice — HealthSpring MA denials route through Availity, and the CMS five-level MA appeal ladder applies with different timelines and escalation paths.
Ready to Appeal an EviCore Cigna Denial?
The EviCore appeal ladder has four distinct levels, and each one requires a separate submission to a different contact with different documentation. Muni Appeals identifies the correct level, builds the clinical argument against EviCore's specific guideline criteria, and tracks all deadlines across the P2P window, reconsideration window, formal appeal, and Cigna NAU escalation.
Get Started:
- Automatic EviCore vs. Cigna direct routing detection from the determination notice
- Clinical argument built against current 2026 EviCore specialty guidelines, not generic CPG references
- Timeline tracking across all four appeal levels and the Cigna NAU escalation window
- Complete appeal packages formatted for EviCore portal submission
This guide reflects EviCore and Cigna prior authorization appeal procedures as of June 2026. EviCore's delegated service scope, appeal deadlines, and post-decision option availability vary by health plan contract, member line of business, and state. Always verify the review organization, filing deadline, and submission method from the specific determination notice received. EviCore clinical guidelines are updated quarterly — confirm the current version before drafting any appeal. Muni Health maintains current procedures for major insurance carriers and updates this content as delegation arrangements change.