There is no single Blue Cross Blue Shield fax number. BCBS is a federation of more than 30 independent companies, and each runs its own appeals, claims, and prior authorization lines. Use the fax number on your denial letter or EOB, or the one published by the company named on your ID card. A few verified examples: Blue Cross Medicare Advantage (Texas) standard appeals 1-800-419-2009, HealthSelect of Texas appeals (325) 794-2926, and Anthem Blue Cross (California) Individual & Family grievances and appeals 1-877-551-6183.

This guide explains why BCBS fax numbers are company-specific, gives the numbers we could verify on official Blue plan websites, and shows how to find yours when it is not listed.

  • BCBS is not one insurer. Your fax number depends on the company that issued your card.
  • Verified numbers for the Federal Employee Program, Blue Cross and Blue Shield of Texas, and Anthem Blue Cross in California
  • How to find the right line for every other Blue plan

Table of Contents

Why there is no national BCBS fax number

The Blue Cross Blue Shield Association is an association of independent, locally operated companies, 33 of them according to bcbs.com, and it licenses each one to use the Blue names in its own area. Anthem, Florida Blue, Highmark, Regence, Premera, and the Health Care Service Corporation plans (which include Blue Cross and Blue Shield of Texas and Illinois) are all separate insurers. Each has its own claims systems, appeals units, and fax lines.

So searching for "the BCBS appeal fax" gets you a number that belongs to one company. Faxed to the wrong company, your appeal reaches an insurer with no record of you. Within one company the lines are split again: commercial versus Medicare Advantage, medical versus pharmacy, standard versus expedited.

Start with your ID card and your letter

The number printed on your denial letter, EOB, or request for information wins. It goes to the unit that made the decision, at the company that holds your policy.

If you have no letter, your ID card is the next best source. It shows:

  • The company name and logo, which tells you whose website to use
  • The plan type (employer, individual, Medicare Advantage, Medicaid, or FEP)
  • A member services number, where you can ask for the fax line for your exact request

Verified BCBS fax numbers

These numbers come from official Blue plan websites and documents. Each one applies only to the company, plan, and request listed. They are worked examples, not a directory of all Blue plans.

Verified November 2026:

Company and plan Request Fax number Source
Blue Cross and Blue Shield of Texas, Blue Cross Medicare Advantage Prior authorization for medical care 1-855-847-4711 BCBSTX Medicare: Contact Us
Blue Cross and Blue Shield of Texas, Blue Cross Medicare Advantage Medical care appeals, standard 1-800-419-2009 BCBSTX Medicare: Contact Us
Blue Cross and Blue Shield of Texas, Blue Cross Medicare Advantage Medical care appeals, expedited 1-800-338-2227 BCBSTX Medicare: Contact Us
Blue Cross and Blue Shield of Texas, Blue Cross Medicare Advantage Medical care grievances 1-855-674-9189 BCBSTX Medicare: Contact Us
Blue Cross and Blue Shield of Texas, Blue Cross Medicare Advantage Part D coverage determinations, redeterminations and appeals (standard and expedited) 1-855-212-8110 BCBSTX Medicare: Contact Us
HealthSelect of Texas (administered by Blue Cross and Blue Shield of Texas) Appeals and correspondence (325) 794-2926 HealthSelect of Texas: Contact Us
Anthem Blue Cross (California), Individual & Family plans Grievances and appeals 1-877-551-6183 Anthem CA Individual & Family: Complaints, Grievances and Appeals
FEP Service Benefit Plan Overseas medical claims (dial from abroad) 001-610-293-3529 2026 Service Benefit Plan brochure
FEP Service Benefit Plan Overseas retail pharmacy claims (dial from abroad) 001-480-614-7674 2026 Service Benefit Plan brochure
FEP Service Benefit Plan Fax listed on FEP prescription drug prior approval policies 1-877-378-4727 FEP pharmacy policy 5.99.031 (2026)

Notes on these numbers:

  • HealthSelect of Texas is the plan for Texas state employees, not a general BCBSTX commercial plan. Other BCBSTX employer and individual plans use the address and fax on their own denial letters.
  • Anthem Blue Cross in California is a separate line of business from Anthem plans in other states and from Anthem Medi-Cal and Medicare plans.
  • FEP overseas numbers are printed with the 001 prefix for dialling from outside the US; the brochure says to dial the AT&T Direct access code of the country you are faxing from first.
  • Not listed: Florida Blue's member grievance and appeal forms do not print a fax number, so we have not listed one. We have not included Highmark, Regence, Premera, or the other Blue companies. Members of those plans should use the number on their letter or call member services.

Federal employees: FEP Blue

The Blue Cross and Blue Shield Service Benefit Plan (FEP Blue) covers federal employees and retirees, but it is administered locally. The brochure explains that local Blue Cross and Blue Shield companies (Local Plans) administer it in their areas, so much of your paperwork goes through your Local Plan, not a national FEP office.

That matters for disputed claims. Under the 2026 brochure, you ask the plan in writing to reconsider a pre-service decision within 6 months of the initial decision, following Section 8 of the brochure. If the plan upholds its decision, you can then go to the Office of Personnel Management (OPM). Your reconsideration letter goes to the address on the denial, not to a national FEP fax.

For prescription drugs, FEP's pharmacy page says your provider can request prior approval electronically, by fax, or by mail, using the forms linked from fepblue.org. Use the fax number printed on the current form for that drug.

How to fax your Blue plan, step by step

  1. Identify the company and plan type from your ID card.
  2. Use the fax number on your letter. If none, use the company's own website or call member services.
  3. Write a cover sheet with your name, the full member ID including prefix, the claim or reference number, what you are asking for, and the page count.
  4. Attach the denial letter or EOB, your explanation, and supporting records, such as a doctor's letter.
  5. Mark expedited requests clearly and give the clinical reason.
  6. Send everything together and keep the confirmation.

You don't need a fax machine. You can send a fax online for $2.99, with no subscription and no account, and get a delivery confirmation by email. For building a prior authorization request, see our prior authorization guide.

Common mistakes with BCBS faxes

  • Using another Blue company's number. The most common BCBS mistake. A Florida Blue member faxing an Anthem line reaches a different insurer.
  • Mixing Medicare and commercial lines. Blue Cross Medicare Advantage in Texas has its own appeal faxes, separate from BCBSTX employer plans.
  • Sending a standard appeal to an expedited line. Expedited lines are for urgent cases and may route standard requests back.
  • Leaving off the member ID prefix. Copy the full ID exactly as it appears on the card, letters included.
  • Trusting a third-party fax directory. These lists mix numbers from different Blue companies and go stale.

Faxing a Blue plan comes down to finding the right company, then the right line within it. Your letter and your ID card get you there faster than any search.

Fax your Blue Cross Blue Shield documents now →

Frequently asked questions

Is there one Blue Cross Blue Shield fax number?

No. Blue Cross Blue Shield is a federation of more than 30 independent, locally operated companies, each with its own fax lines. The right number is the one on your denial letter or on the website of the company named on your ID card.

What is the FEP Blue (federal employee) fax number?

The Service Benefit Plan's 2026 brochure gives 001-610-293-3529 for overseas medical claims and 001-480-614-7674 for overseas pharmacy claims, dialled from abroad with an AT&T Direct access code. FEP pharmacy policy documents list 1-877-378-4727 as a fax. Other FEP requests go through your Local Plan.

What is the Blue Cross Medicare Advantage appeal fax in Texas?

Blue Cross and Blue Shield of Texas lists 1-800-419-2009 for standard and 1-800-338-2227 for expedited Blue Cross Medicare Advantage medical appeals. Part D drug appeals and coverage determinations use 1-855-212-8110.

What is the Anthem appeal fax number?

It depends on the state and plan. Anthem Blue Cross in California lists 1-877-551-6183 for Individual & Family plan grievances and appeals. Anthem plans in other states use different numbers, so check your denial letter or your state's Anthem site.

Can I fax a BCBS appeal without a fax machine?

Yes. An online fax service sends the same fax from your browser or phone and gives you a delivery confirmation you can keep.

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