To request your lab results or records by fax, Quest Diagnostics' Patient Access Form lists 1-855-854-9151. For billing questions, Quest does not publish one national fax; its billing FAQ says to use the fax number and address printed on your bill. Quest says it responds to access requests within 30 days.

This guide covers the verified Quest fax number, how to fill in the access form, and how to handle a billing problem by fax.

  • Records requests: one verified fax, printed on Quest's access form
  • Billing: use the fax on your bill
  • Representatives must send proof, such as a power of attorney

Table of Contents

Verified Quest Diagnostics fax numbers

Verified November 2026:

What you are sending Fax number Source
Patient Access Form (lab results and records request) 1-855-854-9151 Quest Patient Access Form (PDF)
Billing correspondence The fax printed on your bill Quest billing and insurance FAQs

Notes:

  • Access form: the version we checked is Privacy 703A-F1 (NCS), January 2021. It is addressed to Quest Diagnostics, ATTN: Clinical Client Services, 9601 Renner Blvd, Lenexa, Kansas 66219, and also offers an email option (which Quest says is not recommended if unencrypted).
  • Billing: Quest says to send insurance information or other requested details to the address on your bill, or fax it using the number on the bill. Bills can come from different Quest billing offices, which is why there is no single number.

Requesting your records

Under HIPAA you have the right to a copy of your lab results. Quest's Patient Access Form asks for:

  • The patient's details, such as name, date of birth and contact information
  • What you want, such as specific test results and dates of service
  • Where to send it, for example to you by mail, email or fax
  • Your signature and date
  • Proof of authority if you are a parent, guardian or other representative

You can often see recent results faster in Quest's MyQuest app. For records from doctors and hospitals, see our medical records fax guide.

Billing and insurance problems

If Quest asks for insurance details, or your bill doesn't match your insurer's explanation of benefits (EOB):

  1. Find the fax number and address on your bill.
  2. Write the invoice or account number from the bill on every page.
  3. Include the EOB or insurance card copy and a short note about what is wrong.
  4. Call the customer service number on the bill if you're not sure what to send.

How to fax Quest, step by step

  1. Choose the request: records (access form) or billing (number on your bill).
  2. Complete the form or write a short cover letter.
  3. Attach proof of authority if you are not the patient.
  4. Write the patient's name and date of birth (records) or invoice number (billing) on every page.
  5. Fax it and keep the confirmation.

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

Mistakes that slow down a Quest request

  • Unsigned or undated access form. Those fields are required.
  • No proof of authority from a representative.
  • Billing papers sent to the records fax, or the reverse.
  • No invoice number on billing correspondence.
  • Missing dates of service, which makes the right results hard to find.

Fax your Quest form now →

Frequently asked questions

What is the Quest Diagnostics fax number for medical records?

Quest's Patient Access Form (Privacy 703A-F1, January 2021) lists fax 1-855-854-9151 for submitting a completed request for lab results and records. It can also be mailed or emailed using the details on the form.

What is the Quest Diagnostics billing fax number?

Quest does not publish one national billing fax. Its billing FAQ says to use the correspondence address and fax number printed on your bill.

How long does Quest take to answer a records request?

Quest's Patient Access Form says it will respond within 30 days of receiving the request.

Can I request someone else's Quest results?

Only if you are their authorized representative. The form asks parents, guardians and other representatives to include proof, such as a court order, healthcare proxy or power of attorney.

Do I need a fax machine to fax Quest?

No. You can send the form by online fax from your phone or computer and keep the delivery confirmation.

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