Highmark uses different fax lines for each type of plan. For prescription drug prior authorization, exceptions and appeals (commercial and Medicare), Highmark's request form says to fax 1-866-240-8123. Medicare Advantage appeals on the 2027 Community Blue Medicare HMO plan go to 1-717-635-4235 (medical), 1-717-635-4209 (Part D) or 1-800-894-7947 (expedited). Highmark Wholecare member appeals go to 412-255-4503. Use the number on your Highmark letter if it differs.

This guide lists each Highmark fax number we confirmed on highmark.com, which plan it is for, and what to include.

  • Separate lines for drug requests, Medicare Advantage, Wholecare and Health Options
  • Verified numbers, each linked to the Highmark page or plan document it came from
  • No commercial member appeal fax was published, so follow your letter

Table of Contents

Which Highmark plan you have

Highmark is a Blue Cross Blue Shield company serving Pennsylvania, Delaware, West Virginia and parts of New York. It runs several lines of business:

  • Commercial plans (employer and individual), under Highmark Blue Cross Blue Shield or Highmark Blue Shield
  • Highmark Medicare Advantage plans, such as Community Blue Medicare
  • Highmark Wholecare, its Medicaid and Medicare plans for people with lower incomes, mainly in Pennsylvania
  • Highmark Health Options, its Delaware Medicaid and dual-eligible plans

Your ID card names the plan. For how the Blue companies differ, see our Blue Cross Blue Shield fax guide.

Verified Highmark fax numbers

Verified November 2026:

Plan What to fax Fax number Source
Commercial and Medicare Prescription Drug Medication Request Form (prior auth, exceptions, appeals) 1-866-240-8123 Highmark Prescription Drug Medication Request Form
Medicare Advantage (Community Blue Medicare HMO, 2027) Medical appeals 1-717-635-4235 2027 Evidence of Coverage
Medicare Advantage (Community Blue Medicare HMO, 2027) Part D appeals 1-717-635-4209 2027 Evidence of Coverage
Medicare Advantage (Community Blue Medicare HMO, 2027) Expedited appeals 1-800-894-7947 2027 Evidence of Coverage
Highmark Wholecare (Medicare) Member appeals and grievances 412-255-4503 Highmark Wholecare grievances and appeals
Highmark Wholecare Provider disputes 1-844-207-0334 Highmark Wholecare grievances and appeals
Highmark Wholecare Post-service appeals from contracted and Medicaid providers 855-501-3904 Highmark Wholecare grievances and appeals
Highmark Health Options (Delaware, dual-eligible) Appeals, grievances and provider disputes 1-833-560-1828 Highmark Health Options D-SNP appeals and grievances

Notes:

  • Drug request form: fax a separate form for each medication. The prescriber completes it.
  • Medicare Advantage: the Evidence of Coverage also gives a mailing address of P.O. Box 535047, Pittsburgh. Other Highmark Medicare plans publish their own Evidence of Coverage; check yours for the exact lines.
  • Highmark Wholecare: appeals must be filed within 60 days. Member phone 1-800-685-5209.
  • Highmark Health Options: Part D coverage determinations go to a separate fax, 1-888-447-4369. The filing deadline is 60 days.

Commercial appeals

We did not find a fax number for commercial (employer or individual) member appeals on highmark.com. These appeals generally follow the instructions in your denial letter, by mail or phone. If you want to send documents by fax, call member services on your ID card and ask whether the appeals unit accepts faxes and at which number.

How to fax Highmark, step by step

  1. Identify your plan on the ID card.
  2. Find the number on your letter, or in the table if it matches your plan.
  3. Use Highmark's form for drug requests, one form per drug.
  4. Write the member ID and any case or claim number on every page.
  5. Attach evidence, such as the decision letter and medical records.
  6. Fax it and keep the confirmation. Use the expedited line for urgent Medicare Advantage appeals.

You can send a fax online for $2.99 with no subscription and no account.

Mistakes that slow down a Highmark fax

  • Several drugs on one form. Highmark asks for one form per drug.
  • Wholecare documents sent to Highmark's commercial or Medicare Advantage lines. They are separate plans.
  • Urgent appeals sent to the standard line. Use the expedited fax and say it is urgent.
  • Missing the 60-day deadline on Medicare and Wholecare appeals.

Fax your Highmark documents now →

Frequently asked questions

What is the Highmark prior authorization fax number for drugs?

Highmark's Prescription Drug Medication Request Form says to fax it to 1-866-240-8123. The form covers prior authorization, exceptions and appeals for both commercial and Medicare members. Send a separate form for each drug.

What is the Highmark Medicare Advantage appeal fax number?

Highmark's 2027 Community Blue Medicare HMO Evidence of Coverage lists 1-717-635-4235 for medical appeals, 1-717-635-4209 for Part D appeals, and 1-800-894-7947 for expedited appeals. Check your own plan's Evidence of Coverage, since numbers can differ by plan.

What is the Highmark Wholecare appeals fax number?

Highmark Wholecare lists 412-255-4503 for Medicare member appeals and grievances. Its provider dispute fax is 1-844-207-0334, and post-service appeals from contracted and Medicaid providers go to 855-501-3904.

Does Highmark have a fax for commercial member appeals?

We did not find one published on highmark.com. Commercial appeals generally follow the mail or phone instructions in your denial letter, so use that letter or call member services on your ID card.

Do I need a fax machine to fax Highmark?

No. You can send a fax online from your computer or phone and get a delivery confirmation by email.

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