Cigna Fax Number: Claims & Prior Authorization

By Sarah Martinez · Published November 6, 2026 · 10 min read

Quick Answer: There is no single Cigna fax number — each kind of request has its own line, and some have none. Medical precertification requests go to 1 (866) 873-8279, drug prior authorizations to (855) 840-1678, and privacy forms such as a HIPAA authorization to Cigna's Central HIPAA Unit at 877-815-4827 or 859-410-2419. Cigna's medical appeals and medical claims don't go by fax. A practice that faxes Cigna every week can send from its own number, with a signed BAA, on mFax Business.

Search for a Cigna fax number and you'll find old PDFs from Cigna, from Evernorth, from vendors and from Medicare plans that cigna.com no longer lists. Cigna Healthcare splits faxes by department: precertification, the pharmacy coverage review team, the Central HIPAA Unit and a few claim units each have a line, and its appeal forms ask for mail.

Below is every Cigna fax number we could confirm on Cigna's own pages and forms, checked on November 13, 2026, with the source for each. You'll also find what Cigna doesn't take by fax, what belongs on the cover sheet, and how to fax patient records to Cigna with a business associate agreement in place.

Cigna Fax Numbers at a Glance

Find the row for what you're sending. Each source link opens the Cigna page or form the number was read from on November 13, 2026.

Cigna Prior Authorization Fax Number for Medical Services

Cigna's medical prior authorization fax number is 1 (866) 873-8279. Its precertification page lists three ways to request one:

• Electronically, through your practice management system with the EDI 278 transaction.
• By phone at 1 (800) 882-4462.
• By fax, with the right precertification intake form, to 1 (866) 873-8279.

Every route needs the same four things: a description of the service, its start and end dates, and the HCPCS or CPT code if you have one. Cigna warns that a request missing important details "may be denied", and that extra records sent later should go the same way as the original request — if you faxed the request, fax the follow-up.

Cigna's Prior Authorization Fax Form comes with its own cover sheet and asks you to complete it "in its entirety" and attach clinical notes that support medical necessity. It also sets expectations: allow 24 to 48 hours for Cigna to acknowledge the pending review. The form asks for the patient's Cigna ID, the requesting and servicing providers' Tax ID or NPI, diagnosis and procedure codes, and your office's fax number.

The same 1 (866) 873-8279 line takes PCP referral forms from the Forms Center. By mail, referrals go to Cigna, Attn. Precertification and Referral Department, 2nd Floor, 1640 Dallas Parkway, Plano, TX 75093.

Requests handled by EviCore

Cigna hands several programs to EviCore by Evernorth, so those requests don't go to the Cigna line:

Cigna's page lists a fax line only for the musculoskeletal program; for the others it sends you to the EviCore Providers' Hub. Behavioral health is different again: precertification for inpatient and partial hospitalization programs is by phone, at 1 (800) 926-2273.

Cigna Pharmacy Prior Authorization Fax Number

For drugs, Cigna's fax number is (855) 840-1678, printed at the top of its General Medication Prior Authorization form (version 061025). Fax is now the last resort, though. Cigna's commercial drug forms page says its Coverage Review Department is "transitioning from PromptPA, fax, and phone coverage reviews" to electronic prior authorization, in this order:

1. ePA through CoverMyMeds or Surescripts in your EHR, for any customer with Cigna prescription coverage.
2. A verbal request at 1.800.882.4462 (1.800.88.CIGNA) if you can't use ePA.
3. The fax form, if neither works — sent to the number printed on the form.

Two lines on the form matter before you send it. Cigna says it can't reply by fax with the outcome unless every asterisked item is completed, including the physician's name, DEA/NPI/TIN, and the patient's name, Cigna ID, date of birth and address. And for an urgent request, the form tells you to call (800) 882-4462. Cigna says most pharmacy prior authorizations are done within two business days unless it needs more information.

Cigna's pharmacy benefit runs through Express Scripts, part of Cigna's Evernorth, and Cigna's precertification page sends EviCore users to the "Pharmacy Drugs (Express Scripts Coverage)" option for other drug requests. Express Scripts keeps its own fax lines for new prescriptions, prior authorizations and Medicare Part D — all in our Express Scripts fax number guide.

Cigna Appeal Fax Number: Mail, Not Fax

There is no Cigna fax number for medical appeals. Both of Cigna's appeal forms — one for providers, one for customers — say "mail", and print mailing addresses but no fax number. Who files depends on the denial, as Cigna's appeals and disputes page sorts it:

For providers

Call Cigna Customer Service at 1 (800) 882-4462 first. Cigna says timely-filing denials, incomplete claims and fee schedule disputes can often be adjusted on that call. A claim denied for coding edits can go as a reconsideration on CignaforHCP.com instead.

If the call doesn't fix it, fill in the Request for Health Care Professional Payment Review. Attach the original EOB or explanation of payment and the records that support your case, and mail it within 180 calendar days of the payment or denial notice:

Cigna says it completes the review in 60 days and notifies you within 75 business days of receiving the dispute. Questions about pharmacy appeals go to 1 (800) 753-2851, and behavioral appeals to 800.926.2273.

For customers

Members start the same way: call the number on the ID card. If that doesn't resolve it, Cigna's appeals and grievances page gives you 180 calendar days from the denial notice. The Customer Appeal Request form goes by mail to the Cigna Appeals Unit, P.O. Box 188011, Chattanooga, TN 37422-8011 — or P.O. Box 188062, Chattanooga, TN 37422-8062, if your card shows "GW - Cigna" or a "G".

Send a copy of the claim and the EOB or denial letter, plus a statement from your doctor and any medical records if the denial was about medical necessity. Cigna answers in writing within 30 calendar days for medical necessity appeals and within 60 days for post-service administrative ones. You or a representative, including your doctor, can file the appeal, and Cigna's customer forms page has an Appointment of Representative form for naming one. If the internal appeal fails and the case involves medical judgment, you may be able to ask for an independent external review.

Is There a Cigna Claims Fax Number?

Not for medical claims. Cigna's claims submission page sends providers to an EDI vendor and gives deadlines: 90 days after the date of service for participating providers, 180 days for out-of-network ones. When a claim needs clinical documentation — an unlisted code, modifier 22, an assistant surgeon — attach it to a paper claim or mail it to the address on the back of the patient's ID card.

Members submit medical claims on myCigna or by mail to the address on the claim form. Three member claim types have their own routes:

• Over-the-counter reimbursement (DMR) — condoms, nicotine patches and gum, at-home STD tests and a few other items: fax the DMR form to 859-410-2422, or mail it to the address on your ID card.
• Supplemental health claims (Accidental Injury, Critical Illness, Hospital Care Indemnity): fax 1 (860) 730-6460, email SuppHealthClaims@Cigna.com, or mail Cigna Healthcare Phoenix Claim Services, PO Box 55290, Phoenix, AZ 85078.
• Prescription claims go by mail: Commercial Claims, P.O. Box 14711, Lexington, KY 40512-4711, within 12 months of the fill date, with original pharmacy receipts.

Cigna Medical Records and HIPAA Forms Fax

Cigna's privacy forms go to its Central HIPAA Unit: fax 877-815-4827 or 859-410-2419, or mail PO Box 188014, Chattanooga, TN 37422. The numbers are printed on the Authorization for Disclosure of PHI, the Request for Access to Protected Health Information and the Request for Personal Representative forms, all linked from Cigna's member privacy forms page.

Cigna says the electronic versions on myCigna are faster. The paper forms are for a different language, a dependent under 13, or when you need to attach legal papers such as a power of attorney or guardianship order.

What Happened to Cigna Medicare?

Don't fax a Medicare request to any number in this guide. On November 13, 2026, cigna.com/medicare/ redirected to cigna.com/healthspring-medicare-supplement-plans, which returned "page not found", and Cigna's sitemap listed no Medicare plan pages. HealthSpring's site says its Medicare Advantage and Part D plans are provided by subsidiaries of Health Care Service Corporation. If the member's ID card says HealthSpring, use the numbers on that card or on healthspring.com, not Cigna's commercial lines.

Cigna's Customer Appeal Request form still prints a "Cigna-HealthSpring" Medicare appeals address in Phoenix. Given the redirect, treat that line as out of date and confirm it with the member's plan first.

How to Fax Documents to Cigna

A fax to Cigna lands where it should when you pick the line from the table, put Cigna's identifiers on the cover sheet and keep proof that the pages arrived. Here's the sequence in mFax, on the web or in the iPhone, Android and Windows apps:

A delivered fax proves the transmission, not that a reviewer has read it. For precertification, Cigna asks you to allow 24 to 48 hours for an acknowledgement; after that, call 1 (800) 882-4462 with the receipt and page count in hand.

Faxing PHI to Cigna: The HIPAA Part

HIPAA lets a practice fax patient records to a health plan; what it has to add is a business associate agreement with the service that carries the fax. HHS's page on covered entities and business associates lays out who the rule binds, and a fax service handling a practice's PHI is one of those business associates. Our guide to faxing PHI securely goes through the rest of the checklist.

mFax Business covers that part:

• A BAA on every plan, at no extra cost. The workspace owner opens Settings, chooses Review & sign on the Business Associate Agreement row, both sides sign electronically, and the row shows Signed with the date.
• What a privacy officer asks about: PHI stored and processed in the US, a confirmed-or-failed status on every fax, and every teammate signing in with their own login.
• A fax number for Cigna's replies. Both of Cigna's prior authorization forms ask for your office fax, and the drug form says the outcome comes back by fax when the form is complete. The practice's fax line drops those replies into a shared Received list.
• Fax from email, too. Staff can address a message to the fax number at send.mfax.to — medical precertification becomes 18668738279@send.mfax.to — and attach the PDF; the address they sign in with is already authorized. The subject and body become the cover sheet, so keep patient details in the attachment. More in our email-to-fax guide.

Plans start from about $9/mo, and you build your own from the seats and pages you need. For the wider rules, see our HIPAA compliant fax guide. Faxing other plans too? We've also checked the lines for Aetna and Anthem.

Faxing your own form as a Cigna member? HIPAA's rules bind plans, providers and their business associates, not you sending your own records. If you have one privacy form or OTC claim to send, open the mFax app, upload the PDF and send it in under 2 minutes, free for 7 days.

When a Fax to Cigna Doesn't Go Through

When a fax to Cigna fails, the status names the reason. mFax's support notes that most failures happen on the receiving side, and a second attempt usually goes through:

• Recipient busy, No answer — the line was in use or didn't pick up. Busy lines are retried automatically; otherwise wait a few minutes and press Resend.
• No fax tone, Declined — the number answered, but no fax machine did. You've probably dialed a phone line such as 1 (800) 882-4462; check the number against the table.
• Invalid number, Number not in service — re-check the digits and the +1.
• File too large — the packet is over 60 pages or 100 MB. Split it into two faxes and mark each cover sheet "1 of 2" and "2 of 2".

Fax Cigna from Your Practice's Own Number

mFax Business gives your practice a fax number for Cigna's replies, HIPAA-compliant faxing with a signed BAA, and a delivery receipt for every packet — on web, mobile and desktop. Build your own plan from about $9/mo, and cancel anytime.